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Pesticide Management Guide: Protecting Surface Waters & Wells from Drift

Learn how to minimize pesticide drift and movement by water to safeguard surface waters and wells. Understand drift causes, droplet size impact, and protective measures for groundwater. Get detailed advice on application techniques and environmental impact prevention.

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Pesticide Management Guide: Protecting Surface Waters & Wells from Drift

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  1. Keeping Pesticideson Target

  2. Drift Pesticide Movement • Two primary causes Movement by water Movement by drift

  3. Protect Surface Waters

  4. Setback Requirement • Atrazine • Princep Surface Waters & Wells Wells • Banvel • Status

  5. Protect Groundwater Users are advised not to apply this chemical to sand and loamy soils where the water table (groundwater) is close to the surface and where the soils are permeable.

  6. Pesticide Drift & Overspray

  7. Spray Droplet Size • Reducing droplet size by one-half . . .. . . results in eight times the number of droplets 100 Microns 100 Microns 200 Microns 100 Microns 100 Microns 100 Microns 100 Microns 100 Microns 100 Microns

  8. Spray Nozzles

  9. Wind Speed

  10. Check Site Conditions

  11. Grapes and 2,4-D

  12. Nonpoint Source Sources of Pollution • Point Source Drift Spills Runoff Back Siphoning Leaching

  13. Advance Notice to Beekeepers

  14. Scout Fields Alfalfa weevil potasson luna Lacewing larvae Syrphid maggot Lady Beetle

  15. Biomagnification Applied Pesticide

  16. Birds in Field

  17. Endangered Species http://epa.gov/espp/ (800) 447-3813

  18. Animal Toxic Response Team

  19. Summary

  20. Pesticide Applicator Training (608) 262-7588 PAT-program@wisc.edu http://ipcm.wisc.edu/pat

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