All results refer to responses from sampled producers concerning specific practices.
The producers were asked how many acres of a specific commodity they had, and what pesticide management practices they used. Pests were defined as weeds, insects, and diseases. If the respondent used a specific practice on a crop, it was assumed that the practice was used on all of the acres of that crop. For example, if a producer had 500 acres of wheat, and used field mapping of previous weed problems to assist in making weed management decisions, it was assumed that all 500 acres were mapped. See pages 32-33 for a copy of the actual questions used to collect these data.