Organic Agriculture and Pesticide Drift. Michael L. White and Kathleen Delate. Modified by Georgia Agriculture Education Curriculum Office June 2002. What is organic agriculture?.
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Michael L. White and
Modified by Georgia Agriculture Education Curriculum Office
“Organic agriculture uses naturally occurring amendments for fertilization and pest control. Fields must be free from synthetic fertilizers and pesticides for a minimum of 3 years. Genetically Modified Organisms (GMO’s) are not allowed. Animals grown organically feed on organic grains and pasture. Synthetic hormones or antibiotics are restricted. The foods are processed, packaged and distributed without the use of synthetic pesticides, artificial preservatives or irradiation.”
Organic crop production is now a $4.2 billion industry in the U.S.
1989-1996 saw a 20% annual growth rate in the U.S.
Certified organic acres in Iowa
1996 - 21,733
1997 - 62,000
1998 - 100,000 +Organic history
Cropping records for a minimum of 3 yrs, preferably 5 yrs.
Field or farm organic for past 3 years
Organic farm plan
Use a crop rotation 3 out of 4 years
Audit trail of production, input, harvest, storage, sales and transportationCertification
Source: Herbicide Spray Drift, NDSU Extension
25 to 30 foot buffer strip required but wider is recommended
Post “CERTIFIED ORGANIC” signs
Know your neighbors
Read the label
Know wind direction and speed
Use nozzles producing larger droplets
Avoid volatile herbicides
dicamba (Banvel®, Clarity®)Drift precautions
Drift retardants recommended
Cultivation instead of postemerge spraying
Pesticide-free crop rows adjacent to organic buffer areas
Pesticide-free forage crops next to organic crops
Enroll buffer areas into CRP, wetland reserve or forestry reserve
Other ideas?Other options
Chief, Pesticide Bureau
Iowa Dept. of Ag & Land Stewardship
Henry A. Wallace Building
Des Moines, IA 50319
Maury C. Wills recommended
IDALS - Organic Food Production and Certification
Iowa State University
Organic Crops Specialist