THE GAZETTE JANUARY 29, 2014
Re: “Fighting the emerald ash borer” (Your Views, Jan. 24)
I read with great interest the comments from Jean-Daniel Azuelos regarding the fight against emerald ash borer (EAB) and, in particular, his concerns over the use of the injectable product, TreeAzin Systemic Insecticide. TreeAzin, a product derived from seed extracts of the neem tree, has a registration record that speaks for itself. After a rigorous review of efficacy and toxicity data, Health Canada’s Pest Management Regulatory Agency (PMRA) registered TreeAzin for use against EAB in Ontario and Quebec in 2008 and across Canada in 2012. TreeAzin is listed by the Organic Materials Review Institute (OMRI) for use in organic production in the U.S. and the Ontario Ministry of the Environment has scheduled it as a Class 4 pesticide, which designates TreeAzin as a least hazardous commercial pesticide. TreeAzin® is also exempt from Ontario’s Cosmetic Pesticide Ban Act, unlike other products on the market for the control of EAB.
Azuelos expressed concern that other organisms have built resistance to azadirachtin, the active ingredient in TreeAzin. Most studies examining resistance development in other target insect species have actually shown relatively low resistance to azadirachtin compared to other insecticides. It must also be noted that most of these studies involve intentional over-exposure to lab populations to induce, if possible, and measure resistance. Scientific research has shown that, while it is possible to induce resistance to azadirachtin in aphids over 40 generations with repeated exposure to pure azadirachtin, resistance to only semi-pure products, such as TreeAzin, has not been shown. Given that azadirachtin does not persist in the injected tree or its surroundings and that only a very small fraction of any EAB population would ever be exposed, the potential for resistance to TreeAzin developing is infinitesimally small under a scenario of systemic injections used to protect high value ash trees.
Regarding TreeAzin’s toxicity to aquatic wildlife and bees, research has shown that azadirachtin is markedly less toxic to wildlife and bees than other insecticides registered for use against EAB. Moreover, ash trees are wind pollinated and TreeAzin is only used post-bloom via systemic injection, so only organisms directly foraging within or on treated trees can be exposed. Further, azadirachtin residues persist for only a few weeks, are not quantifiable in senescent leaf tissues, and have shown no effects on degrading organisms. When used as labelled, TreeAzin saves ash trees, while posing minimal risk to mammals, birds, bees, and soil and aquatic ecosystems.
President, BioForest Technologies Inc.
Sault Ste-Marie, Ont.
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- TreeAzin Failure | Final Death Throes | BioForest Emerald Ash Borer Treatment Update | Unpublished Ottawa
- Pesticide Free Failure | Joe Meating Wrong? | Emerald Ash Borer | TreeAzin NOT WORKING!!!|
- Youtube : Kitchener Ontario – Emerald Ash Borer – Millions of Dollars in Losses, No Effective Control
- Ontario Pesticide Ban Failure | MisInformed Emerald Ash Borer Activist Meg Sears wants Ottawa to spend $750,000 on TreeAzin | Necessary Stop Gap Measure | Faircrest Heights Community Association
- 35-year-old trees removed from Kitchener street in ash borer battle
- Audio: Discredited Activist – Non EXPERT MEG SEARS – Ash Borer – TreeAzin – Talks with CKCU Studio and Sean Barker
- Ontario Pesticide Ban Failure | Wrong Again and Non Expert: Meg Sears | Remarkably Effective Organic Pesticide TreeAzin ? | Emerald Ash Borer
- Kitchener to cut down hundreds of trees as emerald ash borer battle heats up | CTV Kitchener News
- Cull infected ash trees instead of treating them | guelph mercury