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Alternative Practices for Reducing Pesticide Impacts on Water Quality
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August 1, 1998 - July 31, 2002
Funding Agency: CALFED
Investigators: F.G. Zalom 1, M.N. Oliver 2, W.W. Wallender 3, I. Werner 4, B.W. Wilson 5, W.H. Krueger 6, B.T. Angermann 3, L.A. Deanovic 4, T.S. Kimball 4, J.D. Henderson 5, G.H. Oliveira 5, P. Osterli 2
(please reference below)
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Abstract:
A multidisciplinary team of scientists is studying the movement of water soluble insectide diazinon and the more hydrophobic insecticide esfenvalerate from the orchards to which they are applied during orchard dormancy. Research currently focuses on potential site management practices, sometimes referred to as BMPs to mitigate or reduce runoff, suitability of alternative pest management approaches, and impacts of these practices on EPA indicator and endemic non-target aquatic organisms. Hydrological field models are being developed to predict insecticide runoff, and are based on water flow and concentration as affected by physical, chemical and environmental variables. Potential site management practices and alternative pest management approaches were identified through a literature review, and selected practices are being evaluated for pest control efficacy and non-target impacts. Toxicity of field runoffs samples was determined through exposure of the EPA test organisms, fathead minnow, Pimephales promela, and the water flea, Ceriodaphnia dubia.
References:
1 Entomology, University of California, Davis, CA
2 UC Cooperative Extension, Modesto, CA
3 Land, Air & Water Resources, University of California, Davis, CA
4 Anatomy, Physiology & Cell Biology, University of California, Davis, CA
5 Animal Sciences, University of California, Davis, CA
6 UC Cooperative Extension, Orland, CA
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