Name and Position/Title:
Jim Fawcett, Extension Field Agronomist
Fiscal Year Submitted:
POW Title and Number:
101 Corn and soybean production
Goof Plots & Applicator Goofs Provide Teaching Opportunity
Issue (Who cares and why):
Herbicides are a valuable tool for crop producers but can cause serious problems when off label applications are made. It is important for ag professionals and crop producers to be able to recognize herbicide injury symptoms and be able to distinguish the symptoms from other crop problems. It is also important for them to realize the consequences of not following label instructions.
What Did You Do? (Outputs – these may include educational meetings, demonstrations or research, media, facilitating, partnering)
Goof plots were put out at the SE IA Research Farm in 2010, where crops including corn, sweetcorn, soybeans, oats, forage grasses, alfalfa, and sudangrass were planted and various herbicides sprayed across the crops to achieve herbicide injury symptoms. The plots were used to teach Certified Crop Advisors about herbicide injury symptoms at a training session and were also utilized to teach a community college class about herbicide modes of action. In addition, pictures were taken of the plants in the plots and in farmer’s fields where other herbicide injury symptoms were observed. Pictures of corn injury from late herbicide applications were used as part of the statewide private pesticide applicator training.
Results (Outcomes – was there a increase in knowledge, new skills learned, new decisions made, new practices implemented, increased profitability, new standards, enhanced quality of life)
Over 90% of respondents of an end-of-meeting survey taken at private pesticide applicator re-certification sessions where the education was provided on herbicide injury from late herbicide applications said they would now review herbicide labels on timing restrictions before making herbicide applications.
Page last updated:
July 18, 2011
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