C9 - Pesticide use and water quality. Rich Pope, extension program specialist, Iowa State University; Mary Skopec, Iowa Geological Survey, Iowa Department of Natural Resources; Jim Ellerhoff, Pesticide Bureau, Iowa Department of Agriculture and Land Stewardship.

Pounds of pesticide active ingredients calculated from pesticide sales data were distributed state-wide and compared to detections of pesticides in surface and ground water. The trends over time will be discussed to provide a better understanding of pesticide movement in water. Comparisons of the pounds with crop type will also be explored and may provide insight into impaired surface water in southern Iowa reservoirs.

Presentation 1 | Presentation 2 | manuscript