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Published byElaine Sharyl Owen Modified over 9 years ago
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Systemic Insecticide Seed Treatments Will it be standard in variety testing? Overview Wheat, Soybean, Corn Bill Bruening * Don Dombek * Fred Allen
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Safety and handling Toxic as hell? No. Handling similar to fungicide trt seed
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Toxicity Issues Acceleron Clothianidin 2000/4000 From: 2009 UK Soybean Variety Test Report
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Safety and Handling Procedures
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Safety and handling Dust respirator? In variety testing – primary exposure from dust - packaging seed; planting seed. Acute toxicity not likely in our field. Chronic toxicity is risk from breathing dust over time.
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Kentucky Wheat Variety Tests Seed treatment with fungicides is recommended, however treatment with systemic insecticides (i.e. Gaucho, Cruiser, etc.) is prohibited. Goal is to evaluate varieties genetic performance – on a level playing field. ~ 10% wheat sold in KY has Sys Insecticide Trt. It’s a cost issue vs. scout & spray. Crop consultants opposed–job security–not promoted. Issue – not being able to return trt seed. Some growers avoid high cost seed due to unpredictable yields (Freeze/Scab).
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Kentucky Wheat Variety Tests My experience with seed companies & IST’s. The corporate mistrust issue. Regulation: Do I test for presence of compound? Trust and violation of federal law.
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Federal Seed Act - Labeling of treated seed
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Kentucky Wheat Variety Tests Another issue for companies. If a company’s variety is sold with standard IST, is it unfair to them, to test their seed without the Trt? – results do not represent the potential of the “product”. Fair competition issue - keeping playing field level? 1X recommended treatment rate or 10X, how do I maintain a fair playing field?
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Rate Issue: Treat at rate according to the label’s recommended rate or 10X…?
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Re: Rate - Does this label apply to variety tests? Experimental exemption?
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Entomologist’s view Standard treatment w/ systemics is dangerous. Shotgun approach to insect control = resistance Putting so much out in the environment could “blow up” & have a DDT like scenario. Closing Based on survey, most wheat variety test programs do not allow this treatment. I’m undecided as to if/when I will change my policy.
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