Archive for the Category » CCD «

Sunday, January 31st, 2010 | Author: DNR

Report on Bee Mortality and Bee Surveillance in Europe

from http://www.isaaa.org/kc/cropbiotechupdate/online/default.asp?Date=12/18/2009

AFSSA, the French Food Safety Agency completed a 218-page report on honey bee mortality and the ways that colony losses are monitored in Europe, December 8, 2009. The European Food Safety Authority commissioned the study and published the report. Initially, AFSSA set up a consortium of seven European bee disease research institutes in France, Germany, Italy, Slovenia, Sweden, Switzerland, and the United Kingdom.

The project covers 1) a description and critical analysis of surveillance programs that measured colony loss; 2) the collection and analysis of the epidemiological data sets on colony losses; and 3) a critical review and selection of relevant literature on the possible causes and risk factors of colony losses.

The researchers found that bee colony losses in Europe and the USA are multifactorial which include beekeeping and husbandy practices, environmental factors, biological agents as well as excessive use of pesticides. The interaction of these factors create stress, weaken bees’ defense system allowing pests and pathogens to kill the colony.

3.2.3.3 Chemical agents

The debate on chemical agents is mainly concentrated on the agrochemicals used for crop treatments. Neonicotinoids are the focus of the greatest interest in the literature (imidacloprid, clothianidin and fipronil); other publications just mention “pesticides” in general, but certainly with an implicit consideration of neonicotinoids (Figure 75). Scientists are clearly divided on the role of these pesticides, as illustrated in Table 14. Although no involvement of pesticides has been proven for colony losses or CCD, a significant amount of pesticide residues are frequently found in the studies analysing bees, pollen and wax, usually at sublethal levels. A question arises, therefore, about the possibility for a conjunction of chemical residues present in the hive at sublethal concentrations, which may produce a lethal effect or clinical signs affecting the ability of colony to survive. Several authors mention these pesticides as factors contributing to stress or weakening of colonies which, once again, may “open the door” to other causative factors.

3.2.3.2 Biological agents

A significant number of biological agents are reported to be involved in colony losses. Viruses are the biological agents most frequently mentioned (Figure 73). As more than 15 different viruses are known to infect bees, often without any clinical symptoms and since, co-infection with several viruses is not uncommon, they are the subject of much research. Due to their frequent presence, they are found in many colony losses cases where it is very difficult to determine whether they are at the origin of the losses, or just co-factors. Of the eight viruses mentioned in the literature, IABPV is the most frequently mentioned, and some scientists consider it as a “marker” of CCD in the United States (Figure 74). Varroa, Nosema spp and Acarapis woodi infections are the three other most commonly mentioned biological factors. Some scientists consider them to be causative factors in a certain amount of colony losses (for Nosema mainly in Spain). Others consider that they are co- factors, contributing to the stress of the colony or contributing to the “expression” of colony mortality as causative factor of death for a colony already weakened by other stress factors. This is why the factors “multiple infection” and “unidentified disease” appear in the assumptions made by the authors. All these hypotheses open the floor to a debate on possible treatments to prevent or cure these infections. This links together these biological agents with chemical factors and beekeeping practices because beekeeping practices and chemical treatments are used to control infections. The debate on the involvement of the various biological agents is clearly expressed in the author’s opinions summarised in Table 13 with a high rate of “possible involvement” and balanced reports between “unlikely” and “very likely”.Scientific Report on Bee Mortality and Bee Surveillance in Europe

3.2.4 Conclusion and perspectives

The work package on literature review allowed the development of a specific methodology for literature search and analysis. The “priority 1″ references selected and reviewed validate the objectivity of the literature search which is expressed through the variability and the balanced topics included. The results of this work regarding risk and causative factors involved in colony losses have to be taken as a “snap shot” of the scientific community’s opinion as they are today; these are also “time sensitive”, and evolving due to the amount of ongoing research which will likely lead to new findings and a better understanding of the factors involved in the coming months or years.

To summarise this picture, common consensus amongst the scientific community about the multi-factorial origin of colony losses in Europe and in the United States (in the two aspects of this term: combination of factors at one place and different factors involved according to place and period considered) suggests the following factors are important, namely: beekeeping practices (feeding, migratory beekeeping, colony husbandry, treatments applied and so forth), environmental  factors (climate, available forage, biodiversity, etc.), chemical factors (pesticides) or biological agents (Varroa, Nosema spp, etc.) which together create stress, weaken bees’ immune systems that then allow pests and pathogens to kill the colony (e.g. one or several parasites, viruses, etc.).

Figure78. Factors involved in colony losses

Questions remain about the sequence of events that lead to colony mortality, and future studies should be designed and conducted to address this:

- There are many inconsistencies in the ways in which “colony losses” are defined. Up to 17 different definitions for CCD in the literature. This means that involved persons may not always be referring to the same phenomenon, and this creates confusion when trying to explain the origin of what has been identified in the field. The described pathology is varied, with authors/using the same descriptions for different sets of circumstances. A specific study should be undertaken to clearly categorise and quantify the various expressions of colony losses in the field. This study will be closely linked to the strengthening of surveillance systems;

- High concentrations of pesticides have rarely been identified in relation to colony losses (CCD in USA and winter colony losses in Europe) although acute events of pesticide toxicity are well described during the production season (and clearly differentiated from CCD and winter colony losses). However, the questions of possible synergistic effects of various pesticides and the effect of chronic exposure to sublethal doses of pesticides remains, and requires further investigation;

- Biological agents such as parasites, viruses or bacteria, alone or in combination, have clearly been identified as important factors in colony losses. Nevertheless, there is still a lack of knowledge about the exact mechanisms and/or interactions involved, that must also be addressed;

- Even though the multifactorial origin of colony losses is well acknowledged, the respective role of each factor as a risk or causative agent is unknown, and no hierarchy of relative threat posed by each one has been established. These matters require further investigation using appropriate epidemiological studies (case control and longitudinal studies).

Conclusion

This bee surveillance project sought information on both the prevalence of honey bee colony losses, and the surveillance systems respectively in 27 European countries. Through a standardised questionnaire, each of the surveillance systems collecting these data was evaluated. In addition, a thorough literature search of the existing databases, as well as relevant grey literature about causes of colony losses was completed, and the literature evaluated.

The main conclusions from project activities can be summarised as follows:

  • General weakness and high variability of most of the surveillance systems in the 25 systems investigated;
  • Lack of representative data at country level and comparable data at EU level for colony losses;
  • Common consensus of the scientific community about the multifactorial origin of colony losses in Europe and in the United States and insufficient knowledge of causative and risk factors for colony losses.

From these finding the consortium makes the following recommendations:

1. Implementation of a sustainable European network for coordination and follow-up of surveillance, and research on colony losses to underpin monitoring programmes;

2. Strengthen standardization at European level by harmonization of surveillance systems, data collected and by developing common performance indicators;

3. Build on the examples of best practice found in existing surveillance systems on communicable and notifiable diseases already present in some countries;

4. Undertake specific studies that build on the existing work in progress to improve the knowledge and understanding of factors that affect bee health (for example stress caused by pathogens, pesticides, environmental and technological factors and their interactions) using appropriate epidemiological studies (case control and longitudinal studies);

5. The set up of the coordination team at European level. This is a crucial issue and the coordination team should be organized in such a way so as to ensure its sustainability and to enable effective surveillance programme activities at the European level.

Complete report attached and also here: http://www.efsa.europa.eu/en/scdocs/scdoc/27e.htm

When their link breaks, download the PDF here: Scientific Report on Bee Mortality and Bee Surveillance in Europe

Wednesday, June 17th, 2009 | Author: DNR

Kim Flottum found out for us (thaaaaaank youuu!)


A year ago USDA CSREES (Cooperative State Research Extension Education Service) awarded a $4.1 million grant to a group of university researchers for the express purpose of solving the current honey bee health problems confronting the beekeeping industry. Without actually nailing it down, this was a project to look into the current Colony Collapse Disorder malady and, over four years, find out what was going on. But at the same time the grant was to fund an extensive education program for beekeepers, and to develop as much information as possible so beekeepers could keep their bees healthy, and had a place to go for questions … and answers. Moreover, 25% of the funds were to go to study non-apis pollinators, such as bumble bees, alfalfa leaf-cutting bees and the like. To date, this is the only government money to be distributed to beekeeping researchers to study this problem other than normal budgetary funds to keep the USDA projects up and running.

So what’s happened in a year? I’m glad you asked, because I wanted to know too. So I ventured to the University of Georgia in Athens to visit with Dr. Keith Delaplane, the leader of this large and varied group studying this large and varied problem.


In this first year each of the cooperators in the program have hired the people they need to work with or brought on board the grad students who will do the work or the post-doc who will assist in the project. Probably the biggest accomplishment so far, said Dr. Delaplane, is the establishment of the seven stationary apiaries to monitor honey bee health and the environment. These apiaries, consisting of 30 colonies each, are in Maine, Florida, Pennsylvania, Minnesota, Texas, Washington and California. Each is administered by one of the researchers and will be managed using the techniques particular to their respective locations … bees in Minnesota are not managed on the same calendar or with the same methods as those bees in Texas, for instance. But each area does have best management practices that reflect these differences, and those will be followed.

However, one constant is that each colony in each of these apiaries will be sampled once a month for the duration of the study to look at what’s going on inside. Samples of bees, honey and wax will be taken, and measurements of bees and brood will all be taken routinely. The samples will go to a lab at Penn State to look for viruses and nosema disease, to the University of Minnesota to count nosema spores, and to the Connecticut Agricultural Experiment Station to look at the pollen and wax samples for residues of agricultural pesticides. At the same time, USDA scientists will be taking identical samples, and doing identical counts from a series of migratory beekeeping operations. Samples and data will be identical from each apiary and each migratory operation, and at the end the mountain of data will be easily comparable and very useful, said Delaplane.

Because this grant also covers non-apis bees (that is, bees that are not honey bees) identical samples will be taken from managed non-apis bees at each of the apiary sites. Scientists are looking for cross infections or other relationships.

Other non-apis projects include looking at increasing the efficiency and reducing the stress of managed bumblebees when used for pollination. The effects of the neonicitinoid pesticides on non-apis bees are also being studied, and especially the sub-lethal effects and any effects from residues. This should be interesting.

Meanwhile, the Extension and Education part of this has moved right along, and in July the USDA is launching its eXtension.org website. It is to be a one-stop shopping experience for agricultural information. The honey bee health section is housed and administered from the University of Kentucky in Lexington. All of the information that goes on this web page, the bee page included, is well-researched and well-refereed work, with oversight by a large team of honey bee scientists. There will be a Frequently Asked Questions section, an Ask The Expert question, Best Management Guides section and more. All coming from the Bee Health Community group. This effort will be federally supported, but all states will contribute with funds from their individual extension budgets. This will, over time I imagine, erode the personnel in each state’s Extension core. Unfortunate, but at least there won’t be a vacuum left behind.

Friday, June 05th, 2009 | Author: DNR

Public release date: 4-Jun-2009

Contact: Dennis O’Brien
dennis.obrien@ars.usda.gov
301-504-1624
Public Library of Science

Bee-killing parasite genome sequenced

Agricultural Research Service (ARS) scientists have sequenced the genome of a parasite that can kill honey bees. Nosema ceranae is one of many pathogens suspected of contributing to the current bee population decline, termed colony collapse disorder (CCD). Researchers describe the parasite’s genome in a study published June 5 in the open-access journal PLoS Pathogens.

In 2006, CCD began devastating commercial beekeeping operations, with some beekeepers reporting losses of up to 90 percent, according to the USDA. Researchers believe CCD may be the result of a combination of pathogens, parasites and stress factors, but the cause remains elusive. At stake are honey bees that play a valuable part in a $15 billion industry of crop farming in the United States.

The microsporidian Nosema is a fungus-related microbe that produces spores that bees consume when they forage. Infection spreads from their digestive tract to other tissues. Within weeks, colonies are either wiped out or lose much of their strength. Nosema apis was the leading cause of microsporidia infections among domestic bee colonies until recently when N. ceranae jumped from Asian honey bees to the European honey bees used commercially in the United States.

The ARS scientists used genetic tools and microscopic analysis at the ARS Bee Research Laboratory (BRL) in Beltsville, Maryland to examine N. ceranae. They collaborated with colleagues at the University of Maryland, College Park, Maryland, Columbia University, New York, New York, and 454 Life Sciences, of Branford, Connecticut.

Sequencing the genome should help scientists trace the parasite’s migration patterns, determine how it became dominant, and help resolve the spread of infection by enabling the development of diagnostic tests and treatments.

###

ARS is a scientific research agency in the U.S. Department of Agriculture.

FINANCIAL DISCLOSURE: Supported by the USDA-ARS Administrator fund, www.usda.gov/wps/portal/usdahome (JDE, JC, JP), North America Pollinator Protection Campaign, www.pollinator.org (JE, JC), USDA-NRI grant # 2002-0256, www.usda.gov/wps/portal/usdahome (JE), Northeast Biodefense Center Grant # U54AI57158, www.nbc.columbia.edu (WIL), and Google.org Contract # 17-2008, www.google.org (WIL). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The use of trade, firm, or corporation names in this paper is for the information and convenience of the reader. Such use does not constitute an official endorsement or approval by the United States Department of Agriculture or the Agricultural Research Service of any product or service to the exclusion of others that may be suitable.

COMPETING INTERESTS: ME, SH, and BD are employed by 454 Life Sciences/Roche Applied Sciences.

PLEASE ADD THIS LINK TO THE PUBLISHED ARTICLE IN ONLINE VERSIONS OF YOUR REPORT: http://dx.plos.org/10.1371/journal.ppat.1000464 (link will go live upon embargo lift)

CITATION: Cornman RS, Chen YP, Schatz MC, Street C, Zhao Y, et al. (2009) Genomic Analyses of the Microsporidian Nosema ceranae, an Emergent Pathogen of Honey Bees. PLoS Pathog 5(6): e1000466. doi:10.1371/journal.ppat.1000466

Disclaimer

This press release refers to an upcoming article in PLoS Pathogens. The release is provided by the article authors and/or their institutions. Any opinions expressed in these releases or articles are the personal views of the journal staff and/or article contributors, and do not necessarily represent the views or policies of PLoS. PLoS expressly disclaims any and all warranties and liability in connection with the information found in the releases and articles and your use of such information.

About PLoS Pathogens

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Sunday, May 24th, 2009 | Author: DNR

Pesticides indicted in bee deaths

Agriculture officials have renewed their scrutiny of the world’s best-selling pest-killer as they try to solve the mysterious collapse of the nation’s hives.

By Julia Scott
Salon.com
http://www.salon.com/env/feature/2009/05/18/bees_pesticides/

May 18, 2009 - Gene Brandi will always rue the summer of 2007. That’s when the California beekeeper rented half his honeybees, or 1,000 hives, to a watermelon farmer in the San Joaquin Valley at pollination time. The following winter, 50 percent of Brandi’s bees were dead.Graphic: Fate of Imidacloprid “They pretty much disappeared,” says Brandi, who’s been keeping bees for 35 years.Since the advent in 2006 of colony collapse disorder, the mysterious ailment that continues to decimate hives across the country, Brandi has grown accustomed to seeing up to 40 percent of his bees vanish each year, simply leave the hive in search of food and never come back. But this was different. Instead of losing bees from all his colonies, Brandi watched the ones that skipped watermelon duty continue to thrive.

Brandi discovered the watermelon farmer had irrigated his plants with imidacloprid, the world’s best-selling insecticide created by Bayer CropScience Inc., one of the world’s leading producers of pesticides and genetically modified vegetable seeds, with annual sales of $8.6 billion. Blended with water and applied to the soil, imidacloprid creates a moist mixture the bees likely drank from on a hot day.

Stories like Brandi’s have become so common that the National Honeybee Advisory Board, which represents the two biggest beekeeper associations in the U.S., recently asked the U.S. Environmental Protection Agency to ban the product. “We believe imidacloprid kills bees — specifically, that it causes bee colonies to collapse,” says Clint Walker, co-chairman of the board.

Beekeepers have singled out imidacloprid and its chemical cousin clothianidin, also produced by Bayer CropScience, as a cause of bee die-offs around the world for over a decade. More recently, the same products have been blamed by American beekeepers, who claim the product is a cause of colony collapse disorder, which has cost many commercial U.S. beekeepers at least a third of their bees since 2006, and threatens the reliability of the world’s food supply.

Scientists have started to turn their attention to both products, which are receiving new scrutiny in the U.S., due to a disclosure in December 2007 by Bayer CropScience itself. Bayer scientists found imidacloprid in the nectar and pollen of flowering trees and shrubs at concentrations high enough to kill a honeybee in minutes. The disclosure recently set in motion product reviews by the California Department of Pesticide Regulation and the EPA. The tests are scheduled to wrap up in 2014, though environmentalists, including the Sierra Club, are petitioning the EPA to speed up the work.

For over a decade, Bayer CropScience has been forced to defend the family of insecticides against calls for a ban by beekeepers and environmentalists. French beekeepers succeeded in having imidacloprid banned for use on several crops after a third of the country’s bees died following its use in 1999 — although the French bee population never quite rebounded, as Bayer is quick to point out. Germany banned the use of clothianidin and seven other insecticides in 2008 after tests implicated them in killing up to 60 percent of honeybees in southwest Germany.

Imidacloprid and clothianidin are chloronicotinoids, a synthetic compound that combines nicotine, a powerful toxin, with chlorine to attack an insect’s nervous system. The chemical is applied to the seed of a plant, added to soil, or sprayed on a crop and spreads to every corner of the plant’s tissue, killing the pests that feed on it.Pennsylvania beekeeper John Macdonald has been keeping bees for over 30 years and recently became convinced that imidacloprid is linked to colony collapse disorder. It’s the only explanation he can find for why his bees, whose hives border farmland that uses the pesticide, started dropping dead a few years ago.

“There’s the pernicious toxic effect — it does everything nicotine does to our nervous system,” says Macdonald. “There’s the pathological effect, the interference with basic functions. They get lost, they get disoriented. They fall to the ground. They get paralyzed and their wings stick out. I can’t think of anything in the environment that’s changed other than farming, and virtually every farmer is using treated seeds now.”

Bayer CropScience spokesman Jack Boyne says his company’s pesticides are not to blame. “We do a lot of research on our products and we feel like we have a very good body of evidence to suggest that pesticides, including insecticides, are not the cause of colony collapse disorder,” he says. “Pesticides have been around for a lot of years now and honeybee collapse has only been a factor for the last few years.” (Imidacloprid has been approved for use in the U.S. since 1994 and clothianidin has been used since 2003.)

Scientists continue to investigate the causes of colony collapse disorder. Leading theories suggest a combination of factors that include parasitic mites, disease, malnutrition and environmental contaminants like pesticides, insecticides and fungicides. The current EPA review will provide further insight into the role of pesticides, as it will uncover whether honeybees sickened by exposure to imidacloprid spread it around by bringing contaminated nectar and pollen back to the hive.

EPA critics suggest that the agency allowed economic considerations to take precedence over the well-being of honeybees when it approved imidacloprid for sale in the U.S. 15 years ago. “I think the EPA and USDA [U.S. Department of Agriculture] have been covering up for Bayer, and now they’re scrambling to do something about it,” says Neil Carman, a plant biologist who advises the Sierra Club on pesticides and other issues. “This review should have been done 10 years ago. It’s been found to be more persistent in the environment than was reported by Bayer.”

Imidacloprid was approved with knowledge that the product, marketed as Gaucho, Confidor, Admire and others, was lethal to honeybees under certain circumstances. Today the EPA’s own literature calls it “very highly toxic” to honeybees and other beneficial insects. Its workaround was to slap a label on the product, warning farmers not to spray it on a plant when bees were foraging in the neighborhood.

In its 2007 studies, Bayer applied standard doses of imidacloprid to test trees, including apple, lime and dogwood. Its scientists found imidacloprid in nectar at concentrations of up to 4,000 parts per billion, a dose high enough to kill several bees at once. (Honeybees can withstand a dose of up to 185 ppb, the standard amount it would take to kill 50 percent of a test population.) What caught the attention of California agricultural officials was that the test trees contained the same amount of deadly imidacloprid as the citrus and almond groves regularly sprayed by farmers, and pollinated by bees. (California’s almond industry has increased its use of imidacloprid by a factor of 300 in the past five years.) Agricultural officials were also surprised to learn that the imidacloprid can persist in the leaves and blossoms of a plant for more than a year.

The Bayer results don’t surprise University of California at Davis professor Eric Mussen, a well-known entomologist and one of the country’s leading experts on colony collapse disorder. Mussen has seen a variety of unpublished studies with similar results, including one at U.C. Riverside that found imidacloprid in the nectar of a eucalyptus tree bloom at concentrations of 550 ppb a full year after it was applied.

“From some of the data on the trees, it appears as though there are situations where honeybees can get into truly toxic doses of the material,” says Mussen, who avoids spraying imidacloprid on his own demonstration fields at U.C. Davis. “This the first time that we’ve had something you put in a tree that could stay there for a long time.”

But Mussen isn’t convinced imidacloprid is a primary cause of the honeybee die-off. He explains that some bees settle on fields of sunflowers and canola treated with the chemical and then “fly right through to next year.” So imidacloprid is not the only story. “Could it be part of the story?” he asks. “I’m sure. I think any of the pesticides the bees bring back to the beehive is hurting the bees.”

Mussen adds that ongoing research into chronic exposure to insecticides will be crucial. It’s likely, he says, that exposure to even low doses acts like a one-two punch: It can weaken the bees until a parasite or pathogen moves in to finish them off.

As the EPA begins its pesticide studies this year, skeptics wonder whether the agency can conduct an unbiased review. Back in 2003, they point out, the EPA reported that clothianidin was “highly toxic to honeybees on an acute contact basis,” and suggested that chronic exposure could lead to effects on the larvae and reproductive effects on the queen. Although the EPA asked Bayer for further studies of its effects on honeybees, it nevertheless authorized the chemical for market.

“If the EPA had sufficient concern about harm to bees that they would insist on other studies, it seemed unwise to approve it anyway and ask for research after the fact,” says Aaron Colangelo, an attorney with the Natural Resources Defense Council. “The EPA’s job is to make a decision about whether a chemical is safe or not.”

Colangelo envisions a similar scenario in coming years. The EPA has announced it will review clothianidin and other chemicals in the same family, but not until 2012. In the meantime, there’s nothing stopping the agency from approving the insecticides for use on new crops based on existing policies. In the end, Colangelo has little confidence the federal agency will bring a hammer down on the agribusiness giant. The EPA, he explains, often keeps its test results confidential for proprietary reasons at a company’s request. As a consequence, it’s unclear where gaps or discrepancies occur until a company makes a disclosure similar to Bayer’s.

“They’re not making decisions about whether the pesticide can be put on the market based on impacts to bees, no matter how much evidence of harm there is,” Colangelo says. “The EPA will just approve it anyway and put a warning label on the product.”

Halting the sale of pesticides, though, would be no mean task. Over 120 countries use imidacloprid under the Bayer label on more than 140 crop varieties, as well as on termites, flea collars and home garden landscaping. And the product’s patent expired a few years ago, paving the way for it to be sold as a generic insecticide by dozens of smaller corporations. In California alone, imidacloprid is the central ingredient in 247 separate products sold by 50 different companies.

In a statement, the EPA says that before banning a pesticide, it “must find that an ‘imminent hazard’ exists. The federal courts have ruled that to make this finding, EPA must conclude, among other things, that there is a substantial likelihood that imminent, serious harm will be experienced from use of the pesticide.” The EPA did not clarify what is meant by “imminent hazard” and why the death of honeybees does not qualify.

As Mussen points out, though, a few million dead honeybees may be the cost of doing business. “If they didn’t register products that were toxic to honeybees, there wouldn’t be a lot of products on the market that were available for pest control.”

All the more reason to start taking the world’s most ubiquitous insecticide off the market and invent a safer one, argues Walker, of the National Honeybee Advisory Board. “It’s on every golf course, it’s on every lawn. It’s not just an agricultural product. There’s really not one part of our lives it’s not touching.”

Tuesday, May 05th, 2009 | Author: DNR

YOUR HELP IS NEEDED TO SECURE FARM BILL FUNDING
FOR NATIVE AND MANAGED POLLINATOR RESEARCH

Please contact your Senators and ask them to sign on to a letter by Senator Boxer in support of vital research on agricultural pollinators. Please read below for additional information. The deadline for Senators to sign on to this letter is Wednesday, May 6.

Find the contact information for your Senator’s office

Thank you,
Scott Hoffman Black
Executive Director, The Xerces Society for Invertebrate Conservation


Providing funding for research into the causes and remedies of honey bee and native bee declines is a critical step in pollinator conservation.Infection of endothelial cells of the ventricle of the bee by N. cerana Please take a moment to call or write your Senator, let them know how important pollinators are, and ask them to 1) support this appropriation and 2) contact Senator Boxer’s office to sign on to this important letter.

Senator Boxer has written a letter requesting that the Agriculture Appropriations Subcommittee allocate $20 million in Fiscal Year 2010 for pollinator research projects as authorized in the 2008 Farm Bill. These funds will increase the resilience and security of our farming systems by supporting vital research into Colony Collapse Disorder (CCD) in managed honeybees and to promote the health of honey bees and native pollinators through habitat conservation and best management practices.

BACKGROUND
As you may know, the 2008 Farm Bill includes language authorizing $100 million over five years to further our scientific understanding of the essential agricultural services pollinators provide our nation. The letter only seeks to fully fund critical provisions that were recently signed into law through legislative consensus.

Managed and native pollinators, such as honey bees, bumble bees, and other native bees, are needed for the production of over $18 billion (and possibly as much as $27 billion) per year in agricultural products in the U.S. These animals are required for 35 percent of the world’s crop production. Yet, total pollinator spending at USDA in the 2008 Fiscal Year accounted for merely 0.01 percent of the agency’s budget. Without pollinators, our current yields of alfalfa, almonds, apples, cherries, cranberries, blueberries, kiwifruit, strawberries, melons, squash, peppers, peaches, pears, plums, carrot, onion, and other seed crops, would not be possible.

Arising in 2006, the as yet unexplained phenomenon termed Colony Collapse Disorder (CCD) diminished our nation’s already dwindling honey bee colonies, and highlighted our relative ignorance of the complex systems that support animal pollinated food production. It is vitally important to conduct research to better understand and solve this problem. Randy Oliver teaches beekeepers how to use microscope to find Nosema

Studies in other developed nations have well documented a diminished presence of honey bees and other vital pollinators in interdependent agricultural and ecological systems, but much information is lacking in the U.S. A major conclusion of a comprehensive study by the National Academy of Sciences in 2007 found that for most North American pollinator species, long-term population data are lacking and knowledge of their basic ecology is incomplete.

Funding for pollinator research will protect the health, future, safety, and sustainability of our nation’s most nutritional food crops. These funds will ensure that we base our sustainable future in agriculture on a more comprehensive understanding of the science that supports it.

Thank you for your help in this effort.

Read more about the 2008 Farm Bill Benefits to Crop Pollinators >>
Read more about the Xerces Society Agricultural Pollinator Conservation Program >>
Browse the Xerces Society Pollinator Conservation resources >>
Browse the Xerces Society Pollinator Conservation publications >>

ABOUT THE XERCES SOCIETY
The Xerces Society is an international, nonprofit organization that protects wildlife through the conservation of invertebrates and their habitat. For over three decades, the Society has been at the forefront of invertebrate conservation, harnessing the knowledge of scientists and the enthusiasm of citizens to implement conservation programs.

Tuesday, April 14th, 2009 | Author: DNR

ABSTRACT

Honeybee colony collapse is a sanitary and ecological worldwide problem. The features of this syndrome are an unexplained disappearance of adult bees, a lack of brood attention, reduced colony strength, and heavy winter mortality without any previous evident pathological disturbances. To date there has not been a consensus about its origins. This report describes the clinical features of two professional bee-keepers affecting by this syndrome. Anamnesis, clinical examination and analyses support that the depopulation in both cases was due to the infection by Nosema ceranae (Microsporidia), an emerging pathogen of Apis mellifera. No other significant pathogens or pesticides (neonicotinoids) were detected and the bees had not been foraging in corn or sunflower crops. The treatment with fumagillin avoided the loss of surviving weak colonies. This is the first case report of honeybee colony collapse due to N. ceranae in professional apiaries in field conditions reported worldwide.

E-mail mhiges@jccm.es; Tel. (+34) 949 25 00 26; Fax (+34) 949 25 01 76.

MY NOTES: Some beekeepers don’t recommend using it, affects cold weather bees. http://www.beesource.com/forums/archive/index.php/t-225700.html

And there’s discussions about how to apply it: http://www.beesource.com/forums/showthread.php?p=42097o None the less, it should be noted for the record.

Plus, Dr. Eric Mussen, UC Davis, chimes in about it http://www.projectapism.org/content/view/13/27/

And, is Nosema locustae “the only protozoan registered as a pesticide active ingredient” and what research has been done with honey bees and Nosema locustae? “Nosema locustae is a naturally-occurring microbe that infects and kills grasshoppers and Mormon crickets when these pests ingest bait that contains Nosema

 

Fumagillin in Environmental Microbiology Reports

Monday, March 16th, 2009 | Author: DNR

What does LD50 mean? What about TLV?

LD50 stands for Lethal Dose 50. It is the amount of a material that, when administered to a population of animals or insects at the stated level, will be lethal for 50% of the population tested. For example and LD50 of 0.015 ?g / bee means that 15 trillionths of a kilogram will kill 50% of the bees that are exposed. The LD50 is established during safety testing conducted during product development. (return to What Has Been Found)

TLV, or Threshold Limit Value, on the other hand, is an occupational exposure level frequently printed on the MSDS (Material Safety Data Sheet) or label of a product. It is the maximum level to which a person can be safely exposed to that product when in use in accordance with the personnel protective equipment described on the label. The level is the amount believed a worker can be exposed day after day for a working lifetime without adverse health effects. The TLV does not relate to the amount that can be safely ingested as TLV values are typical inhalation or skin exposure related.

MORE GREAT DETAILS about CCD and pesticides: http://montcobee1.farming.officelive.com/CCDUpdate.aspx

Sunday, March 15th, 2009 | Author: DNR
So interesting to see how the conversation about CCD has evolved in the press. This article is a keeper, full of instructive detail, copied here for posterity.- DNR

Mysterious Bee Deaths Strike Central Valley
http://www.valleyvoicenewspaper.com/vvarc/2007/february212007.htm

By Steve Pastis

February 21, 2007 - San Joaquin Valley - A mysterious ailment is killing off bees in Tulare County and across the country. Given the name “Colony Collapse Disorder,” the new disease has wiped out bee colonies in 21 states so far.

The loss of bees in the Central Valley is expected to have a negative impact on crops such as avocados, cherries, plums, alfalfa seeds, pomegranates and kiwi. The bee shortage may hit almonds the hardest during the time of year when half of the country’s commercial bees are brought into the state to help launch what should become a $1.4 billion dollar harvest. Even more bees will be needed over the next few years as California almond production is expected to expand to more than 750,000 acres by the year 2010.

“I’ve lost over 2,000 bees over the last two months,” said David Bradshaw, owner of Bradshaw Honey Farms in Visalia. He had about 4,200 bees but is now down to less than 2,000.

Recently, he was visited by research teams from Pennsylvania State University and the University of Montana. The teams took samples to study and dissect more…

Sunday, March 15th, 2009 | Author: DNR

From the National Resources Defense Council - Tell the EPA to protect honey bees from a toxic pesticide

Bee pollination is responsible for about one-third of the food we eat, helping to produce about $15 billion worth of crops in the United States every year. But honey bee populations are in serious decline, with devastating losses caused by factors such as colony collapse disorder, parasites and pesticide exposure.

Even though the EPA classifies the pesticide imidacloprid as highly toxic to honey bees, it nevertheless approved its use in 1994. France banned several uses of imidacloprid in 1999 over concerns about its effects on bees, but here in the United States imidacloprid is still used heavily on many crops pollinated by honey bees, including broccoli, blueberries, carrots, grapefruit, cucumbers and avocados.

Although the EPA is currently reviewing its approval of imidacloprid as required by the Pesticide Registration Improvement Act, the agency’s work plan lacks many important details on how it will assess risks to bees. In addition, the EPA has put the review on an unreasonably slow timetable, with a final decision not expected until 2014. In the meantime, high-risk uses of imidacloprid will continue, threatening honey bees as well as other important pollinators.

The EPA is accepting public comments on this phase of the project through March 17, 2009.

What to do

Send a message, before the March 17th comment deadline, telling the EPA to protect honey bees and other pollinators from high-risk uses of imidacloprid by strengthening its plans for risk, toxicity and exposure assessments.

To do this go to: http://www.nrdconline.org/campaign/nrdcaction_030409

Friday, March 13th, 2009 | Author: DNR

UPDATE 3/14/09 - The Greenwich Post newspaper reported in 2008 that McNitt’s honey testing “found no trace of another insecticide called Imidacloprid“… Jim McNitt commented on my first post, however, that Eliza just won again this year two top Life Science prizes at the 2009 Connecticut Science Fair for her continued research on pesticides in honey (read his blog). Most notably, he writes that she in fact did find imidacloprid in her testing. “This year, Eliza used HPLC to examine pollen, beeswax,Eliza McNitt 2009 Photo by Frank LaBanca beebread and dead bees gathered from the Arboretum hive for traces of imidacloprid… Her work confirmed the presence of high levels of imidacloprid both in the hive and on the extremities of the Arboretum honey bees.” So, what’s the story behind the story, here? Why did the newspaper report the contrary? Did last year’s research methods differ from this year’s? Was there a sudden spike in imidacloprid usage near the Arboretum study location in the past year? Stamford, CT is a place of wealth and immaculate lawns. It would be nice to see a survey of the gardeners and home owners about what products they put on the lawns. Do they use any of those recently banned in Canada? Would the local garden supply shops provide stats on sales of certain products for local research purposes? Mr. McNitt says’s he’ll send me the link to her research PDF for us to post here. I can’t wait. Thanks for keeping us posted. [his response and link is here : McNitt 2008 Research.pdf] (Photo by Frank LaBanca)

  • What are the possibilities of other high school students around the country sending samples to Greenwich High School Paperfor testing?
  • Could there be a continuing research program set up there?
  • What are the costs to the school for conducting the tests?
  • Is it complicated to test using High Performance Liquid Chromatography (HPLC) technology?

Looks to me like future students at Greenwich High could expand on McNitt’s research and follow in her award-winning footsteps. They have a great research location, ability to survey properties within a 4 mile radius of the hives and perhaps even discover and map the places where the bees are picking up imidacloprid, down to the product name. The next test in the Greenwich High School CCD Research Program should be of the water supply, an often overlooked source of contamination - bees drink water and use it to cool the hive! Science teacher Andy Bramante may need some TA’s, too. ;) - DNR

Jim McNitt Website Screenshot

http://www.jimmcnitt.com/Site2/Blog/Entries/2009/3/13_And_the_winner_of_the_2009_Connecticut_Science_Fair_Is…..html

———————

3/13/09 - Just yesterday I posted some 2008 news about this young woman, and today I see she’s more scientist researcher than film maker! If there’s any high school that would have its own advanced Spectroscopy and Chromatography technology, it would be Greenwich High School. Lucky girl. I’m waiting for Eliza to send me the link to her research (use comment)… Congratulations! You deserve a full ride to college. (Stick with the hard sciences ;)) -DNR

Mar 12, 2008
Greenwich High student wins science competition
http://www.acorn-online.com

Eliza McNitt, a Greenwich High School junior, captured top honors at the 45th Connecticut Junior Science and Humanities Symposium for an original research project that traced the migration of pesticides through the production of southwestern Connecticut honey.

In addition to a $1,000 scholarship and letter of recognition from Gov. M. Jodi Rell, McNitt will represent Connecticut at the National Junior Science and Humanities Symposium at Orlando, FL, in May. The symposium program is sponsored by the U.S. Army, Navy and Air Force in an effort to encourage original scientific research at the high school level. Courtney Fogwell, a GHS senior, was selected as a National Symposium alternate for her project analyzing the environmental impact of artificial-turf playing fields.

Eliza and Courtney were among 13 state finalists who made oral presentations before an audience of more than 300 fellow science students, parents, teachers, and jurors at the University of Connecticut in Storrs on March 10. Both students were mentored by GHS science teacher Andrew Bramante.

“While extensive work has been done on the presence of residual insecticides on fruits and vegetables, there has been little significant scientific research on residual pesticides in honey,” Mr. Bramante said in a release. “Eliza came to me with her project on the first day of class. I almost fell off my stool when I heard it.”

Eliza says that the topic was indirectly inspired by her grandfather, a chemical engineer, who is fastidious about washing and peeling fresh produce.

“If there are insecticides on an apple,” Eliza said. “It made me wonder if they could also be present in honey.”

She found an ideal controlled research environment at the Bartlett Arboretum in Stamford, Bartlett Arboretum Mapwhich maintains an apiary in the middle of its 30 acre property. James Kaechele, arboretum education director and beekeeping specialist Andrew Cote´ made honey samples available along with detailed records of pesticide applications.

Eliza tested the arboretum honey using advanced Spectroscopy and Chromatography technology that had been donated to the GHS science program.

“I was incredibly fortunate to able to perform my own analysis,” she says. “GHS has equipment that you can’t even find in most colleges.”

Her tests revealed the presence of a component of the pesticide Neem Oil — which is widely used in organic farming. Neem Oil is made from the fruits and seeds of Neem, an evergreen tree common in India, and is not thought to be harmful to mammals, birds or bees.

The fact that Eliza found no trace of another insecticide called Imidacloprid may have implications in the search for a cause of the mysterious syndrome known as Colony Collapse Disorder (CCD) in which worker bees abruptly disappear. CCD is considered a serious threat to the pollination of food crops in the United States and Europe.

“Imidacloprid is under investigation as a contributing factor in CCD,” she said. “The fact that it is not present in the Arboretum honey could suggest that it is killing or disorienting worker bees so they cannot return to the hive.”

The topic will be something she’ll tackle in her next GHS science project. [see McNitt’s followup here]

Thursday, March 12th, 2009 | Author: DNR

Although there isn’t any real “news” in this video, it’s important to celebrate the efforts of these two young adults and give props to C-SPAN and them for pumpin’ up the volume! We shouldn’t forget, also, that the Haiti news footage they selected to show “food shortages” comes from the time after the (officially censored) U.S.-sponsored coup of the Haitian government, which has left that already poor country in chaos. Context, context. That country didn’t have much food even before the coup! Better B-roll would have been from the spiking prices in the “First World” supermarkets. Great work, nonetheless. -DNR

Greenwich students win C-SPAN film contest
By Meredith Blake
Staff Writer
Posted: 03/10/2009 11:11:30 PM EDT

After weeks of collecting film clips of honey bee colonies and newsreels on rising food prices and then interviewing leading scientists in the field on colony collapse disorder, Greenwich High School seniors Eliza McNitt and Charles Greene felt ready to complete their documentary for C-SPAN.

Each year the news organization hosts a student documentary contest and this year the topic student films had to address was on the most pressing issue the new president must face.

McNitt and Greene, both 17, chose the problem of the disappearing colonies of honey bees throughout the country and its impact on the cost of food. C-SPAN announced Tuesday that “Requiem for the Honeybee” won first prize out of more than 1000 entries from middle and high school students throughout the country. READ REST…

CAPTION: Greenwich High School seniors Eliza McNitt and Charles Greene received first… (contributed photo)

Requiem for the Honeybee

Tuesday, March 10th, 2009 | Author: DNR

My recent visions include creating a Live Hive ™. A Live Hive ™ is a high-tech monitored beehive complete with internal, infra-red micro video cameras, chip-tagged bees, microphones to monitor hive audio, external camera to monitor comings and goings, temperature sensors, solar panel - all data fed live to schools around the world via the Internet - LIVE 24hrs. It’s a Real World Beehive Show. We need our young to observe bees, for the sake of their own survival. We can now computer-record thousands of hours of high quality audio without a problem, enabling us to observe the change in frequencies within the hive, which I believe is key to understanding honeybee health and intention. (UPDATE: oops… This cool hive webcam seems to have had my idea already!) Here’s a cool example technology below (not German).

Beehive Temperature Data Logger

Furthermore, undergraduate UNC student, Andrew Pierce, et al found that the queen doesn’t decide hive actions herself, but rather “older workers gave signals to the queen and to the rest of the colony that it was time to swarm and leave the hive. Later, they were able to observe inside the swarm itself and see workers give the queen a signal, known as ‘piping’ that tells her to fly.” (read: University of North Carolina at Charlotte) How did they do this?

Today I discovered a gem of an article published four years ago in Der Spiegel magazine from Germany (below) that lifts my hopes that my Live Hive ™ concept will become reality sooner.

In an experiment that’s the first of its kind worldwide, they are creating precise movement profiles for their winged subjects. To this end, tiny transponders have been attached to the backs of thousands of bees. Each radio chip costs one euro and is attached to the bee with a dab of shellac. The chip weighs only 2.4 milligrams, about one-thirtieth of the maximum load a bee can carry, and therefore doesn’t present much of a impediment to the insect.”

The gear exists on the consumer market, we just need to buy the parts off the shelf and deploy the Live Hive ™ in concert with thousands of observing students of all ages to give researchers feedback and notes to accelerate our open knowledge. Google’s computer array should be suitable drive space. Wikipedia that! Pollinatethis!

Finally, Richard C. Hoagland unearthed an interesting nugget about hive sounds in a beekeeper’s recording of a hive noise he heard twice, last back in 2006 - Hoagland played the sound on Art Bell’s radio show (part 9) during a show about Colony Collapse Disorder (along with a bunch more about torsion field energy, and theories that bees build “small cell” comb for the sake of frequency resonance improvement at smaller, natural sizes than with larger, human-prompted foundation size cells… He mentions nothing about mite survival rates in large vs small cell… I appreciated Bell’s critical interviewing.) Sort of funny to hear this guy Hoagland reading from BWrangler’s website on Art Bell’s radio show. Need to learn more about torsion field physics and hexagons. Dr. Adrian Wenner’s work on bee communication is noteworthy for this project, too… Has someone already created the Live Hive? Who wants to fund it for me?

02/21/2005

Big Brother in the Beehive
http://www.spiegel.de/international/spiegel/0,1518,343559,00.html

By Hilmar Schmundt

Bees become increasingly intelligent as they age. They suffer from occupational diseases and travel astronomical distances to produce a jar of honey. Using state-of-the-art monitoring technology, researchers from the German city of Würzburg are revolutionizing our image of mankind’s third most-important working animal.

A snowstorm is raging outside the beehive. Inside, number 6085 is making herself comfortable at a cozy 25° Celsius (77° Fahrenheit) and with an extra serving of sweet nectar.

6085 is a sprightly senior who spends her summers working outside. But for now she is a homebody, spending her time in a world almost entirely of her own making. Her fellow bees expend almost half of their energy making sure their hive is cozy and warm in the winter and pleasantly cool in the summer. The community strictly monitors family planning and carefully controls the intelligence of its offspring. 6085 lives largely sheltered from natural calamities that plague other creatures. Hunger and infirmity are a problem that haven’t plagued bees for over a million years.

“These living conditions sound like something out of a science fiction novel,” says neurobiologist Jürgen Tautz. The white-haired, 55-year-old sits in his office on the second floor of a converted house on the edge of an orchard within sight of the University of Würzburg campus. To convince his skeptical audience that number 6085 truly exists, he proposes an expedition into the exotic world of the bees. Tautz walks down a flight of stairs into his laboratory, where three experimental Plexiglas beehives have been constructed. The beehives even have names, written on paper labels — “Maja,” “Willi” and “Flip.” About a thousand honey bees are crowded into each beehive, including the worker bee identified as number 6085. The Plexiglas window to the hive is warm to the touch, especially near its center, where the royal household crowds around the queen with her long abdomen, making sure she is kept warm, well-fed and clean.

“Bees have achieved many of the things that remain the stuff of dreams for humans,” says Tautz, bright-eyed and speaking with a hint of a local dialect. “We can learn a great deal from them.”

Old bees are the smart ones

A tiny microchip enables scientists to track the habits of bees.

CREDIT: DDP / Fiola Bock / Beegroup Wuerzburg

CAPTION: A tiny microchip enables scientists to track the habits of bees.

The members of his 20-member research team routinely astonish the professional world with their articles in such highly-regarded professional journals as Science, Nature and Zoology. Peter Fluri, the director of the Swiss Center for Bee Research in Bern, is impressed by Tautz’s work. “The results coming out of Würzburg are remarkable,” he says, “and their significance extends well beyond the world of bee biology.”The “Beegroup” laboratory routinely dismantles theories previously regarded as scientific certainty. Until recently, for example, zoologists believed that during the famous tail dance, only those bees directly surrounding the ceremony are quickly informed about a source of nectar. However, the Würzburg researchers discovered that the dance is in fact a refined form of more…

Tuesday, March 10th, 2009 | Author: DNR

British Govt Attempts National Beekeeper DatabaseNational Bee Database to be set up to monitor colony collapse

By Rosa Prince, Political Correspondent
Last Updated: 10:16PM GMT 09 Mar 2009

Britain’s 20,000 amateur beekeepers have been asked to register their insects on a national database in a bid to halt the dramatic decline of the honey bee…

The register, funded by the Department for the Environment, will be used to monitor health trends and help establish for certain whether the £30 million honey industry is under threat from the mysterious Colony Collapse Disorder.

Theories about the cause of the decline in the bee population, which has seen nearly one in three hives collapse, include climate change and an infestation by the Varroa mite. READ REST at the Telegraph…

My Questions:

  1. Would beekeepers in the u.S.A ever voluntarily join a national database managed by the U.S. Federal Government?
  2. What does £4.3 million really buy??
  3. Does registering with a government database include creating a GIS from this database? Who owns the data? Since it should be public data, will the database be available in real-time on the Internet for other researchers to use?
  4. Making the data publicly available opens the research potential, but at what costs to the beekeeper’s privacy? How much data are they “invited” to submit to the database?
  5. Don’t privacy concerns about “a beek’s girls” and business interests get trumped by the dire consequences of failing to understand what’s happening worldwide?
  6. Will joining such a database subject the beekeeper to new regulation, oversight and intrusion by (presumably inept) government controllers?

The UK will provide lessons to the North Americans who still can’t get a dime from their government to do real research on the bees. I’m talking federal money for thousands of GPS tagged hives like the rest of the modern world uses to track anything. Basic logic says we need to know where (commercial) hives are going to analyze the data about what they were exposed to, for how long, with which other bees, from where (Australia?), etc. We need data for a GIS, and it can’t be chicken scratched on plastic bags with sharpies, only (dead bees). In the U.S., it seems that the privatized mind thinks that research money should only come from private interests, like Haagan Daaz or the Almond Industry, or the military. Does this opinion come from a jaded viewpoint that federal funding means loss of control and more potential suffocating regulation, a lack of trust in government?

Monday, March 09th, 2009 | Author: DNR

This blog gets a fair amount of traffic, and this commentary on “colony collapse disorder” from a well-known pollination broker in California deserves attention. Also interesting is to read what he had to say about the idea of “beekeepers receiving government subsidies” almost 10 years ago in 1999. This topic is current again in the news.

–DNR

http://www.beesource.com/pov/traynor/bcdec2008.htm

DECEMBER, 2008 issue BEE CULTURE

Joe Traynor

The following is distilled from the reams of disparate dispatches from the CCD front. I have tried to condense this mass of information into a coherent whole. None of what follows is original — all has been expressed in one form or another by others.

When CCD first came on the stage in 2006-2007, a number of possible causes entered the stage at, or close to, the same time:

Drought in many areas
Difficulty in controlling varroa mites
Nosema ceranae (believed to be widespread since at least 2006)
Decreased bee pasture + increased corn acreage
Chemical buildup in comb
Neonicotinoid pesticides

A good argument can be made for any one of these as the main, or sole cause of CCD; a better argument for a combination of two or more. If only one of the above had occurred, it would have been much simpler to either designate or eliminate it as the cause of CCD.

Based on field reports, CCD can devastate a given apiary in a short period of time, sweeping from one end to the other, leaving previously populous colonies with only a handful of bees and a queen. Since rapid decline of an organism (consider, as many have, a honey bee colony to be an individual organism) is typical of a pathogen, current thinking is that a pathogen, either N. ceranae or a virus (or a combination of both) is the basic cause of CCD.

If a virus causes CCD, is it a new “super” virus, or one of the known bee viruses – Kashmir, DWV, APV et al. — or perhaps a mutation of a known virus to a more virulent form? We don’t know, but assuming that a virus causes CCD allows us to speculate on remedial measures.

Consider other CCD-like problems in humans and plants:

Target
Disease
Pathogen
Main Vector
Humans
Flu
virus
humans
Humans
Malaria
protozoa
mosquitoes
Humans
W.Nile virus
virus
mosquitoes
Humans
Lyme
bacteria
ticks
Citrus
Greening
bacteria
psyllid
Grapes
Pierce’s
bacteria
sharpshooter
Tomatoes
Mosaic
virus
aphids

In each of the above instances, the Target can withstand the Vector in the absence of the Pathogen – mosquitoes are a minor concern to us if they don’t harbor a pathogen; without a READ THE REST…

Friday, March 06th, 2009 | Author: DNR
Banned Products in Canada(Beyond Pesticides, March 4, 2009) The Ontario government is set to announce sweeping new regulations that will prohibit the use of 85 chemical substances, found in roughly 250 lawn and garden products, from use on neighborhood lawns. Once approved, products containing these chemicals would be barred from sale and use for cosmetic purposes.

On November 7, 2008, the Ontario government released a proposed new regulation containing the specifics of the Cosmetic Pesticides Ban Act, passed last June. Then, Ontario joined Quebec in restricting the sale and cosmetic use of pesticides but environmental and public health advocates said then that the new law preempted local by-laws and actually weakens protections in some municipalities with stronger local protections. There are over 55 municipalities in Canada where the residential use, but not sale, of pesticides is banned. The prohibition of these 85 substances is the latest step in this Act. The proposal contains:

• List of pesticides (ingredients in pesticide products) to be banned for cosmetic use
• List of pesticide products to be banned for sale
• List of domestic pesticide products to be restricted for sale. Restricted sale products include those with cosmetic and non-cosmetic uses (i.e., a product that’s allowed to be used inside the house but not for exterior cosmetic use), and would not be available self-serve.

The 85 chemicals to be prohibited are listed under “Proposed Class 9 Pesticides” of the Act. Among the 85 pesticides banned for cosmetic use include commonly used lawn chemicals: 2,4-D (Later’s Weed-Stop Lawn Weedkiller), clopyralid, glyphosate (Roundup Lawn & Weed Control Concentrate), imidacloprid, permethrin (Later’s Multi-Purpose Yard & Garden Insect Control), pyrethrins (Raid Caterpillar & Gypsy Moth Killer), and triclopyr.

However, golf courses and sports fields remain exempt. The use of pesticides for public health safety (e.g. mosquito control) is also exempt. The proposed regulation would also allow for the use of new ‘notice’ signs to make the public aware when low risk alternatives to conventional pesticides are used by licensed exterminators, such as the use of corn gluten meal to suppress weed germination in lawns.

The prohibition, once passed, would likely take effect in mid-April. Stores would be forced to remove banned products from their shelves or inform customers that the use of others is restricted to certain purposes. Residents must then dispose of banned products through municipal hazardous waste collection, and use restricted products for only prescribed purposes. Errant users would first receive a warning, but fines would later be introduced.

By 2011, stores will be required to limit access to the pesticides, keeping them locked behind glass or cages and ensuring that customers are aware of limitations on use before taking them home.

In light on impeding legislation to restrict pesticide use, the Canadian division of Home Depot announced on April 22, 2008 that it will stop selling traditional pesticides in its stores across Canada by the end of 2008 and will increase its selection of environmentally friendly alternatives. Other garden supply and grocery stores have already stopped selling certain pesticides in Ontario.

This proposed prohibition would have the most impact on 2,4-D, the most popular and widely used lawn chemical. 2,4-D, which kills broad leaf weeds like dandelions, is an endocrine disruptor with predicted human health risks ranging from changes in estrogen and testosterone levels, thyroid problems, prostate cancer and reproductive abnormalities. A recent petition filed with the U.S. Environmental Protection Agency and supported by Beyond Pesticides calls for the cancellation of 2,4-D, its products and its tolerances in the U.S.

Other lawn chemicals like glyphosate (Round-up) and permethrin have also been linked to serious adverse chronic effects in humans. Imidacloprid, another pesticide growing in popularity, has been implicated in bee toxicity and the recent Colony Collapse Disorder (CCD) phenomena. The health effects of the 30 most commonly used lawn pesticides show that: 14 are probable or possible carcinogens, 15 are linked with birth defects, 21 with reproductive effects, 24 with neurotoxicity, 22 with liver or kidney damage, and 34 are sensitizers and/or irritants.

Reference: http://www.ene.gov.on.ca/en/news/2009/030401.php