Saturday, January 21, 2012

Local vs. Organic? What about both?

Which is best:  to eat locally grown or organic?  This question is often put forth as a choice that the consumer must make.  It is a false dichotomy similar to the choice that is often fabricated between the environment or the economy.  The truth is that they are usually both possible; in fact neither is a good choice without the other.  


There are many advantages to eating locally grown.  It is good for your health in that the food is usually much fresher and therefore higher in nutrients.  It is good for the economy of the community because it keeps food dollars in the local economy rather than exporting them to other parts of the country or even the world.  It is better for the environment because it does not have the footprint of transporting food from far away places and because small farmers, such as most of the produce farmers of Alabama, usually are better stewards of the land than large farmers.  They do not usually spray their fields aerially, contaminating large areas, non-target organisms, and bodies of water with pesticides.  They do not plow and leave bare large fields.  They usually do not use genetically modified seed, which has the potential of contaminating their neighbors' crops.


There are also many advantages of eating organic.  It is good for your health because there is no danger from pesticide residues on your produce.  Read:  "Three Studies Confirm Bad News About Insecticide Exposures" on the Georgia Organics website.  There are no worries about the effects of consuming antibiotics and hormones in your meat.


Rather than choose between buying from your local farmer or going to Wal-mart to buy certified organic produce why not just ask your local farmer to grow organic?  The major obstacle to the availability of locally grown organic produce is the lack of consumer demand, which can be attributed to the lack of consumer education.


It is often not just a matter of peeling your conventionally grown produce or washing it to remove pesticides.  According to The Organic Center:   


"About 20% of currently registered pesticides are called systemics. Systemic pesticides move into the plant through the root system, travel throughput the plant via its vascular system (plant blood, in effect), and move into surface tissues, where they either stop viral pathogens from growing or kill or repel insects. Some pesticides are 100% systemic, others are partially systemic."  Systemic pesticides are not only passed on to the human consumer, but also kill many pollinators, such as honeybees and butterflies.


The indiscriminate use of antibiotics to fatten food animals (cows, pigs, and chickens) and grow them faster favors the evolution and spread of antibiotic resistant bacteria, a serious threat to public health.

Beef cattle are implanted with hormones at the feed lot, and often on family farms as well, in order to fatten them up in record time and increase profits.  Dairy cows are given growth hormones to increase milk production.  Though the scientific verdict on the safety of consuming these hormones by humans is still out, the European Union has banned the production and import of hormone-treated meat, allowing only imports certified as produced without the use of hormones.  This has caused an on-going and acrimonious trade dispute between the U.S. and the European Union.  See: The U.S.-EU Beef Hormone Dispute.  The U.S. maintains that there is no scientific evidence that growth promoting hormones fed to food animals pose any danger to the consumer.  However, the EU maintains that scientific data on the safety of growth hormones is inadequate, and therefore further studies were needed; that controls necessary to ensure safe administration of the hormones were not in place in the US; that the ban was justified by the EU’s historical use of the “precautionary principle”, a simple belief that any potential risk to human health warrants caution.  The EU approaches risk assessment differently than the US. See:  "The Beef-Hormone Dispute and its Implications for Trade Policy".  


The United States is the only developed nation to permit humans to drink milk from cows given artificial growth hormone.[2] Posilac was banned from use in CanadaAustraliaNew ZealandJapan and all European Union countries (currently numbering 27), by 2000 or earlier 1


The American Public Health Association policy statement on rbGHUse in Dairy Production:  Since 1994, recombinant bovine growth hormone, also known as rbGH or rbST, has been injected into dairy cows to increase milk production; the hormone typically increased production by an average of 11 to 15%.36 rbGH was developed and marketed by Monsanto and sold to Elanco, a division of Eli Lilly, in October 2008. Although approved by the FDA in a November 1993 decision, both Canada and the European Union in 1999 refused to approve the drug’s use, officially citing harm to cows’ health.  No significant scientific studies since then have led these bodies to reconsider their stance. Australia, New Zealand, and Japan have also prohibited the drug’s use.
Although some studies (including several funded by Monsanto) have failed to demonstrate that rbGH harms dairy cows, virtually all independent analyses of the data reached a different conclusion. In addition to the Canadian and European studies, the FDA’s analysis of the data submitted by Monsanto demonstrated that use of rbGH increases the incidence of 16 different harmful conditions in cows, including birth disorders, hoof problems, heat stress, diarrhea, increased somatic cell count, and mastitis, a painful udder infection. On the basis of this evidence, the FDA requires these risks be listed on rbGH package inserts, but not on finished dairy products. Virtually all animal-welfare organizations, including the Humane Society of the United States and the Humane Farming Association, oppose the use of rbGH.

The use of rbGH presents an additional risk to human health in the form of antibiotic resistance. As more cows develop mastitis caused by rbGH use, farmers necessarily increase their use of antibiotics to treat the udder infections. There is now a consensus among scientists that antibiotic use in farm animals increases antibiotic resistance, which can then be transmitted back to humans through food or in the environment. Reducing rbGH use would serve to reduce antibiotic use in dairy cattle.

Scientific committees for Health Canada and the European Commission have also raised concerns about the potential effects of rbGH on cancer. Insulin-like Growth Factor-1 (IGF-1) is a necessary growth hormone present and identical in both cows and humans. However, elevated IGF-1 levels in human blood are associated with higher rates of colon, breast, and prostate cancers. On the basis of data submitted by Monsanto, FDA determined that rbGH use raises levels of IGF-1 in cow’s sera and cow’s milk. These data also show that IGF-1 survives pasteurization. Animal models show that most IGF-1 in cow’s milk survives digestion, reaching the bloodstream where it may promote cancer. The United Nations’ main food safety body, the Codex Alimentarius Commission, determined in 1999 that rbGH could not be declared safe for human health.

More and more US public health organizations have taken formal stances opposing the drug, including Oregon Physicians for Social Responsibility, Health Care Without Harm, and the American Nurses Association. In the last 3 years, more than 260 US hospitals have signed a pledge committing to serve rbGH-free dairy products.

A 2008 national poll showed that more than 90% of consumers favor labeling of rbGH-free products. Responding to this concern, many large retail establishments—including Wal-Mart—have phased out their milk brands produced using rbGH. Milk and many other dairy products from cows not treated with rbGH are now widely available; rbGH use fell from 22% of US farms in 2003 to 15% in 2007. Use of the synthetic hormone is still common practice on many large dairy operations, however. In 2007, nearly 43% of large herds were treated with rbGH.

In February 2007, Monsanto appealed unsuccessfully to the FDA and the Federal Trade Commission to restrict the labeling of rbGH-free milk. Since then, policymakers in 8 states have attempted to ban or restrict the labeling of rbGH-free dairy products through bills or administrative rules. All failed except in Ohio, where the proposed rules are being challenged in court.
Medical authorities and foreign governments have documented scientific public health concerns associated with rbGH use. As long as the FDA allows rbGH to remain on the market, consumers should have the right to know if it is present or absent in dairy products they consume. This right to know about hazardous or controversial substances has been defended in APHA Policy 2002-5.65 


Growth hormones are illegal for use in poultry production.  Antibiotics and arsenic are often fed to increase growth, but the rapid growth in today's chickens is attributed to selective breeding, improved nutrition, and protection from environmental stresses.


These growth hormones, antibiotics, and chemicals, such as arsenic often end up in the environment.  When they contaminate bodies of water, and adverse affects on fish populations.


If you have never watched some of the movies that describe the lives of animals that live in cafos (confined animals feeding operations), you should.  Food, Inc. is a good one.

The link between pesticide ingestion and elevated cancer occurrences are often hard to establish because of the time required for the cancer to develop and the many other factors involved.  Pesticide residues are often found in drinking water supplies and ground water.  Many pesticides are known to be lethal or harmful to pollinators, such as honeybees and butterflies, and to other non-target organisms as well.  According to EPA’s most recent Toxic Release Inventory (TRI) data, across the U.S. in 2010, 3.93 billion pounds of toxic chemicals were released into the environment, a 16 percent increase from 2009. The U.S. is rated 36th among 194 nations in longevity.  Obesity, stress, and toxic chemical exposure are among the factors responsible for the relative low rating.


By choosing organic, you are not contributing to this massive loading of our environment with toxic chemicals.  Locally grown organic is the best choice, not only for your health, but also for the environment.


Why is organic usually more expensive?  It is because of the higher cost of seed, soil amendments, and other farming inputs.  Also, organic requires more labor and labor is the most expensive aspect of farming.  Whereas conventional farmers can use chemicals to control weeds and pests, organic farmers must do many of these things by hand.  Organic farmers may also have more blemished produce that is unmarketable.  Consumers demand perfect-looking produce.  Why not demand naked produce instead?  Naked produce is that produced without the use of any synthetic chemicals.  It is chemical-free produce.

The NY Times recently published an article titled:  Organic Agriculture may be Outgrowing its Ideals.  It cited several examples of unsustainable organic agriculture.  By purchasing locally grown organic food you will avoid contributing to these unsustainable practices.  So vote with your food dollars: buy locally grown organic or better yet, grow your own.  If you have space in your yard, plant a garden.  It is a good way to get exercise, sunshine, entertainment, and education, as well as good food.  If you have a patio, plant in boxes or pots.  If you don't have space in your yard, join or start a community garden.  Then you can add "make friends" to your list of benefits of gardening.

Growing Organics in Alabama: Results of Organic Workshop at Tuskegee University on October 28 & 29, 2011


Results of Organic Workshop at Tuskegee University on October 28 & 29, 2011

The land grant universities of Alabama collaborated on an organic workshop at Tuskegee University titled:  Identifying the Challenges and Constraints to Growth of the Organic Produce Industry in Alabama.  Partners in this workshop included:  Tuskegee University, Auburn University, and Alabama A&M University together with Alabama Sustainable Agriculture Network (ASAN) and The Federation of Southern Cooperatives/LAF.  Over 100 farmers, researchers, marketers, chefs, local food system advocates, healthy food enthusiasts, educators, agricultural service providers, organic advocacy representatives of other states attended this workshop and provided input.

The purpose of the workshop was to identify marketing, policy, production, consumption, and research needs and propose options for promoting the organic food industry in Alabama.  This information will be developed into a proposal for the USDA Organic Research and Extension Initiative Grant Program.

The motivation for this workshop was that nationally, organics is the fastest growing sector of the food industry, yet Alabama has the fewest number of certified organic farmers per capita of any state in the nation.  A recent story by NPR described Alabama as being “anti-organic”.  Consumer demand for organic produce is increasing in this state, as evidenced by the recent addition of three Earth Fare health food supermarkets and a Whole Foods Market.  Also, the grocery store chains in AL are now offering organic produce. 

Organic production represents an untapped opportunity for growers in this state.  The purpose of this workshop was to bring together members of all parts of the food system to investigate why AL has so few organic producers and to determine what we could do about it.

The workshop was organized into three panels the first day:  a farmers’ panel, a marketing panel, and an organic food system panel.  These panels provided opportunities for groups of stakeholders to provide insights into the issues involved in developing the AL organic food industry from their unique perspectives.  At the end of the day, the workshop participants divided into smaller groups for further discussion of the issues discussed during the day.

Following are summaries of the different discussion groups as well as priorities set on the second day of the workshop.

Summary of Panel 1:  the Farmers’ Panel:
Several farmers, certified organic, non-certified organic, and non-organic discussed why there were not more certified organic farmers in Alabama.  These are some of the challenges that they identified:
               1.    The expense of certification, inputs, and production à more expense for the consumer.
    1. There is not much customer demand –consumers need to be educated about the benefits of consuming fresh, locally grown organic fruits and vegetables.
    2. Farmers need help marketing – farm to school programs, for example
    3. Infrastructure is needed – a way for farmers to pool produce for retailers such as Walmart that need a lot of product.  Facilities, such as cooperatives, are needed to house large quantities of produce that could be sold as a group, and that could serve as drop off points to enable farmers to place bulk orders for seeds, soil amendments, and other inputs to make them available at lower prices.  Also infrastructure is needed for value-added products.
    4. The lack of affordable and available labor.
    5. Farmers need more collaboration with land grant institutions – research and extension
    6. There is no certifying agency in AL.
    7. Some farmers are concerned about perceived government control or oversight of their operation and don’t want to be involved in any government programs. 
Key Points: 
Farmers’ Challenges to Organic Production:
They need:
  • Customer Education – to stimulate demand.
  • Infrastructure – farm to school programs, cooperatives, collaborative marketing, certifying agency
  • Research, extension 

The model for the small scale “organic” farmer in AL is one that sells directly to customers through farmers markets, CSAs, on-farm sales through the Local Harvest website, etc.  Even chefs prefer to buy locally grown over organic.  Most customers that choose locally grown do not demand certified organic.  There are not many opportunities for farmers to market organic (or even locally grown) produce to grocery stores.

Many farmers in AL call themselves organic and their customers probably believe that they grow food without chemicals.  There are 43 AL “organic” farmers listed on the Local Harvest website, but only 8 of these are actually certified organic.  Consequently, consumers really don’t know what they are getting unless the produce is certified organic or naturally grown. 

Summary of Panel 2:  Obstacles to Marketing Organic Produce in AL:
This panel included a couple of chefs, an owner of a collaborative marketing business, and the State of AL Farmers’ Market authority.
Their perceived challenges:
  1. The demand for organic produce is very low in AL – need consumer education
  2. The major demand from chefs is for locally grown produce rather than organic.
  3. Locally grown is much easier to get than organic; most farmers in AL are old and want to grow conventionally.
  4. The necessary infrastructure is lacking and is needed.  Crop plans, cooperative marketing – organization and cooperation.
  5. It is difficult for producers to obtain loans.
  6. Liability Insurance is expensive, but needed for marketing to retail markets.
  7. It is important for farmers to market directly to consumers.
  8. Farmers need mentoring where experienced farmers help new farmers learn organic farming methods.
  9. Farmers need information on farming systems.
  10.  Farmers need market research, transportation, cooperation.

Key Points:
Marketing Challenges:  (Some of the challenges identified in this marketing session could more appropriately be classified as challenges to production).
These things are needed:
1.    Consumer Education – Consumers need to be educated about the benefits of consuming organic produce.
2.    Infrastructure – The infrastructure for producing and marketing organic produce does not exist in AL.  We need cooperatives, collaborative marketing, suppliers of organic inputs, seeds, organic inspector, liability insurance, etc.
3.    Research, extension, training – information on organic farming systems.  Farmer mentoring

Panel 3:  The Organic Food System:  The Role of Organic Advocacy Groups in Promoting Organics:
Representatives of 4 southeastern state organic advocacy groups participated in this panel to discuss their organizations:
Marty Mesh – Florida Organic Growers’ Association (FOG)
Jonathan Tescher – Georgia Organics (GO)
Tony Kleese – former executive director of Carolina Farm Stewardship Association (CFSA)
Karen Wynne – form executive director of Alabama Sustainable Agriculture Network (ASAN).
Summary of Panel 3:  The Role of Organic Advocacy Groups in Promoting Organics:
  1. Connect farmers and consumers 
  2. Promote farmers through events, such as Killer Tomato festival (Georgia Organics event).
  3. Get information to people – train farmers through farmer mentoring, workshops, conferences
  4. Educate consumers
  5. Organize and unite organic producers and consumers so that they can have a stronger voice in policy issues.
  6. Unite to create a strong demand for organic information from extension and other state agricultural service providers.
  7. Embrace consumers. That’s what makes the organic system different from the conventional system; all key players are represented.  It’s not just about farmers. 
Key Points:
Role of Organic Advocacy Groups in Promoting Organics:
  • Educate Consumers
  • Connect different components of the food system:  farmers, consumers, researchers, educators, extension
  • Help develop infrastructure
  • Provide farmer training through field days, workshops, and conferences.
  • Support farmers through promotional events. 
Summary of Panel Discussions:
The key challenges and constraints to the growth of the organic food industry in AL were repeatedly identified as:
  • Lack of consumer education
  • Lack of infrastructure
  • Lack of extension, research support
  • Lack of farmer training 

The small breakout sessions provided more opportunity for everyone to share their thoughts and opinions.
Summary of Small Breakout sessions conclusions:
Challenges:
I.     Farmers Need Education on Organic Certification
    A.  There are many misconceptions surrounding requirements of the National Organic Program
         (NOP) certification process:
                                               1.   Many farmers believe it is very difficult to gain organic certification.
                                               2.   Many farmers think organic certification is very expensive.
                                                3.    Many farmers believe the “government” will gain undue control over their farms if they
                             become certified organic.
                B.  Inspector training is needed – for inspectors plus educators to understand the process and
                      regulations.
                C.   Inspection support/information is needed in order to understand process and get over the fear
                      of certification.
                 D.  Outreach is needed on the cost share program.  Few farmers are aware of it.
II.   Production and Marketing Research is Needed:
     A.   Alabama-specific information on the demand for organic produce.
     B.    Case studies with financial information, especially for new and beginning farmers
     C.  Organic census and marketing study - There is a need to show farmers that a market demand
           exists, identify the demand and available/existing infrastructure, and assist farmers in linking
           resources available to them.  
     D.  Producers need to address and manage multiple production and marketing issues – they need
           information on designing diversified integrated farming systems.
III.   Education of Agricultural Service Providers is Needed:
       A.  NRCS – get information on input costs
       B.  Extension – training needed – allow for time to train alone, and some with farmers
IV.   Infrastructure is needed– not just organic issue
       A.  Inputs
       B.   Processing issues – need to send cattle to MO or CO for organic processing
       C.  Farmers must be in control of product distribution.  
       D.  Collaborative marketing needed, especially for farmers located far from metropolitan areas. 
       E.  Cooperatives needed to help farmers reduce input costs through bulk ordering.
       F.  Information on liability insurance.  It may not be as expensive as believed.
       G.  Map of Assets:  North Carolina and Virginia developed the Community Food System
            Explorer (CFSE) which we could use as a model in developing the organic industry in
            Alabama. [CFSE provides “an assessment of public policies, economic conditions, and
            social structures that affect community food systems across” NC and VA
           (www.cfse.ext.vt.edu)].
V.   Advocacy is Needed:
a.    ASAN and other advocacy groups should be prepared to negotiate regulatory policies favorable to producers by minimizing hindrances. They could also assist by developing and conducting feasibility studies, business plans for processors at the local scale, and mapping resources for the industry. They must fill in information gaps for farmers and, while doing so, create cluster of jobs for the community.
VI.  Consumer Education is Needed:
       A.  Organic farmers need to educate the consumer about the food they sell so they will
             understand the true cost of food.
       B.  Backyard gardens (also alternative installation sources)
       C.  Public gardens
       D.  Demonstration farm sites
       E.  Broad age range of education – seniors, youth, mix them up to learn from each other
       F.  Oral histories – what was done in the past, include in part of workshops
       G.  Understanding links between diet and health
VII.  Factors Limiting Low-Income Citizens’ access to Sustainable and Organic Produce
       A.  Many low-income citizens do not have access to sustainable and organic produce due to
             lack of transportation.
       B.  Prices of organic produce are determined by income levels of the communities where it is
             sold.
       C.  Many citizens of all socio-economic levels are price sensitive when purchasing food and will
            always tend to buy food based on its price.
       D.  Many low-income people want to buy organic produce but can’t find it in their local
            communities. Most local farmers markets do not currently have certified organic vendors.
       E. Consumers should consider growing some of their own food in coming years as a way to
            reduce food expenses.
       F.  Farm to school programs needed
       G.  School gardens, community gardens

Opportunities for Farmers
I.             Governmental Agencies (NRCS, RC&D’s, SARE, etc.) provide cost-sharing grants to help farmers transition to organic status. Several practices that organic farmers can take advantage are currently funded, but may be eliminated or funding for them reduced in the proposed Agriculture bill.
A.  Farmers transitioning to organic certification can receive up to 75% of the cost of obtaining certification from the NRCS.
B.    Beginning farmers can often obtain help from established farmers.
C.    NRCS Alabama official, Alice Love, can help farmers apply for government grants. Call her at (334) 887-4550.
II.           New and beginning farmers
A.    Lots of new retired farmers
B.    Internships (beginning farmer and rancher mentor program)
III.         Focus on promising products
A.    Grass finished beef
B.    Very little acreage in veggies (less than 19,000) vs cattle (about 12 million)
     Vegetables: Georgia has 129,000 acres, Florida has 266,000, North Carolina has 119,000

Obstacles in Alabama
1.                Resistance to change
2.                 Organic is a personal/ psychological approach, requires a different mindset
a.    Impact of economic history of Deep South (cotton economy) “rural but not agricultural”
b.    Distrust of government:  There is a need to educate farmers on the role of USDA, NRCS and other government agencies and on the benefits of being certified.
3.                 Banks/lenders don't understand small scale farm financial models, making it harder to access money.

Priorities Identified on the second day of the workshop:
The second day of the workshop the priorities were listed on flip charts and participants voted for the their top three choices.  Votes were tallied and priorities were ranked according to votes.  The photos below show the flip charts.
Marketing Priorities
Research Priorities

Extension Priorities


Overall top priorities




Wednesday, January 11, 2012

Pesticide Residues on Food (EWG's Shopping Guide)

Pesticide Residues on Food The Environmental Working Group has published a list of the "dirty dozen", which is the top pesiticide contaminated foods that you should buy organic if you want to limit your pesticide exposure. http://www.ewg.org/foodnews/summary/ EWG's Shopper's Guide to Pesticides in Produce: The Dirty Dozen: Buy these products organic 1. Apples 2. Celery 3. Strawberries 4. Peaches 5. Spinach 6. Nectarines (Imported) 7. Grapes (Imported) 8. Sweet bell peppers 9. Potatoes 10. Blueberries (domestic) 11. Lettuce 12. Kale/collard greens The Clean Dozen (Lowest Amount of Pesticide residues) 1. Onions 2. Sweet corn 3. Pineapples 4. Avocado 5. Asparagus 6. Sweet peas 7. Mangoes 8. Eggplant 9. Cantaloupe (domestic) 10. Kiwi 11. Cabbage 12. Watermelon 13. Sweet potatoes 14. Grapefruit 15. Mushrooms The best way to avoid pesticide residues on your food is to grow your own. In the southeast, all of the dirty dozen can be grown, except for perhaps nectarines. Peaches are very difficult but if you really like peaches enough to take the time and spend the energy to care for the trees, and if you don't mind cutting off bad spots and worm holes, then you can grow some peaches for your family. Grapes in this area of the country are limited to muscadines and scupernongs. Concords may be grown, but probably not commerically. The other crops are easy enough to grow in your home garden without a lot of special attention and pest and disease problems. Make sure to choose apple varieties that are suited for this climate. Many of the "clean dozen" are also easy to grow in the southeast so why not try some of them while you are at it? If you can't grow your own, the next best thing is to buy from a local farmer that you trust. Ask the farmer about his/her farming practices. Don't assume that locally grown equals pesticide-free. Buying organic from the supermarket is the least sustainable way to get pesticide free produce. If you make sure to eat seasonally available produce then you should be able to find it locally. If you are near Macon County, AL, check out Sunbright Organics: www.sunbrightfarm.com.

Making the Case for Using Organic Seeds

The Case for Using Certified Organic Seeds in “Sustainable” Crop Production

Sometimes I hear the comment that it is more sustainable to just go down to your local feed store and purchase seed than to order organic seed from other areas of the country and have it shipped. It is certainly cheaper to do this. Certified organic seed not only costs more than conventionally grown, but there are few sources of organic seed in Alabama, especially for cover crop seed and other bulk amounts. This means that the grower must not only pay more for the seed, but must also pay freight for having it shipped which is often as much or more than the price of the seed.
An organic grower is required to use organic seed if it is available, if not, then the grower must document at least 3 different attempts to buy organic seed. Growers who are not certified are free to use whatever seed they choose, but before you buy, make sure the seed is not treated.

Most treated seed is dyed for easy recognition and prevention of ingestion by humans and wildlife. So, if your seed is pink, it has been treated with chemicals, usually fungicides to keep the seed from rotting in wet soil. When using untreated seed, just make sure the soil is warm enough for germination to occur. Some seed are treated with systemic insecticides. These pesticides are taken up by the plant as it grows and are transported throughout the plant body, into the leaves, pollen, flowers, and fruit, meaning that the consumer is dosed as well as any insect that lands on the plant. Some, like those discussed below, are known to be toxic to honeybees and other pollinators.

Clothianidin is an insecticide developed by Takeda Chemical Industries and Bayer AG. It is in a class of compounds called neonicotinoids because they are similar to the naturally occurring chemical, nicotine. Clothianidin is absorbed by plants and then released in pollen and nectar to kill pests. It is highly toxic to bees. This chemical is commonly used to treat corn and canola seed. As bees forage on the canola flowers they become poisoned and take the poisoned pollen back to the hives, poisoning the whole colony. Though corn is wind pollinated, bees become poisoned by landing and resting on the leaves which have been contaminated from water transpired by the plant. Germany banned the pesticide after an incident in 2008 in which clothianidin was widely used as a corn seed treatment to control rootworm. Shortly after the seed was planted, 330 million bees abruptly died. Research determined that the dead bees were contaminated with clothianidin. The German government and Bayer CropScience compensated the beekeepers. France, Italy, and Slovenia also banned the chemical.

Clothianidin was first given conditional registration for use as a pesticide by the United States Environmental Protection Agency in April of 2003[1], pending the completion of additional study of its safety to be done by December of 2004 (later extended to May of 2005). The study wasn't completed until August of 2007. Clothianidin was granted an unconditional registration for use as a seed treatment for corn and canola on April 22, 2010.[2] However, in November 2010 after a review of the studies supplied by the manufacturer (Bayer), the EPA released a memo in which they stated that the studies were flawed.

The mode of action of neonicotinoids is similar to the natural insecticide nicotine, which acts on the central nervous system.[1] In insects, neonicotinoids cause paralysis which leads to death, often within a few hours. However, they are much less toxic to mammals and under the WHO / EPA classification these compounds are placed toxicity class II or class III. Because the neonicotinoids block a specific neural pathway that is more abundant in insects than warm-blooded animals, these insecticides are selectively more toxic to insects than mammals. As a group, they are effective against sucking insects, but also chewing insects such as beetles and some Lepidoptera, particularly cutworms. All neonicotinoid products are classified as general use and have been registered under EPA's Conventional Reduced Risk Program due to their favorable toxicological profiles.

Acetamiprid is for use against sucking insects, such as aphids and whiteflies, on leafy vegetables, cole crops, citrus, cotton, ornamentals, and fruiting vegetables. Ready-to-use formulations are available in addition to wettable powders and water-dispersible granules.

Clothianidin was registered in 2003 by Bayer initially for corn and canola seed treatment use. Additional approved sites include grapes, pome fruit, rice, tobacco, and turf and ornamentals.

Imidacloprid was first registered for use in the U.S. in 1992 and is possibly the most widely used insecticide of the group. It has a wide range of target pests and sites, including soil, seed, structural, pets, and foliar treatments in cotton, rice, cereals, peanuts, potatoes, vegetables, pome fruits, pecans, and turf. It is a systemic with long residual activity and particularly effective against sucking insects, soil insects, whiteflies, termites, turf insects, and Colorado potato beetle. Products are available in dusts, granules, seed dressings as flowable slurry concentrates, soluble concentrates, suspension concentrates, and wettable powders. The application rates for neonicotinoid insecticides are much lower than older, traditionally used insecticides.

The most available toxicity data of the neonicotinoids is with imidacloprid. These data indicate that it is less toxic when absorbed by the skin or when inhaled compared to ingestion. It causes minor eye reddening, but is non-irritating to the skin. Signs of toxicity in rats include lethargy, respiratory disturbances, decreased movement, staggering gait, occasional trembling, and spasms. There are no accounts of human poisoning, but signs and symptoms of poisoning would be expected to be those similar for rats. A chronic toxicity study showed that rats fed up to 1,800 ppm resulted in a No Observable Effect Level (NOEL) of 100 ppm. The EPA categorizes imidacloprid as a “Group E” (no evidence of carcinogenicity). In animals and humans, imidacloprid is quickly and almost completely absorbed from the gastrointestinal tract, and eliminated via urine and feces within 48 hours. Of the neonicotinoids, imidacloprid is the most toxic to birds and fish. Both imidacloprid and thiamethoxam are highly toxic to honeybees. Mammalian toxicities for neonicotinoid pesticides registered in Florida are shown in Table 1. Table 2 lists the toxicities to wildlife by the common name of the neonicotinoid pesticide. Table 3 provides a cross listing of many of the trade names that these products are registered and sold by in Florida.
Note: Clothianidan is also highly toxic to bees.

From the EPA:
The fate and disposition of clothianidin in the environment suggest a compound that is a systemic insecticide that is persistent and mobile, stable to hydrolysis, and has potential to leach to ground water, as well as runoff to surface waters.

Clothianidin is highly toxic to honey bees on an acute contact basis (LD50
> 0.0439 µg/bee). It has the potential for toxic chronic exposure to honey bees, as well as other nontarget pollinators, through the translocation of clothianidin residues in nectar and pollen. In honey bees, the effects of this toxic chronic exposure may include lethal and/or sub-lethal effects in the larvae and reproductive effects in the queen.

This product is toxic to aquatic invertebrates. Clothianidin has properties and characteristics associated with chemicals detected in ground water. Contain any product spills or equipment leaks and dispose of wastes according to disposal instructions on this label. Do not contaminate water when disposing of equipment washwaters.

For updates on the efforts of beekeepers to have these pesticides banned, visit:
http://www.beyondpesticides.org/dailynewsblog/?cat=157
(Beyond Pesticides, January 11, 2012) On January 10, beekeepers from across the country gathered at a national conference, with environmental organizations at their side, to draw attention to the growing plight facing their industry –the decline of honey bees, a problem that has far reaching implications for the U.S. economy. The disappearance of the bees [...]

Posted in Agriculture, Clothianidin, Imidacloprid, Pollinators, Thiamethoxam | No Comments »
References:
1. http://edis.ifas.ufl.edu/pi117#TABLE_1
2. http://en.wikipedia.org/wiki/Neonicotinoid
3. http://www.epa.gov/opprd001/factsheets/clothianidin.pdf
4. http://www.beyondpesticides.org/dailynewsblog/?cat=157