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United States Department of Agriculture

Agricultural Research Service

Title: Off-Site Movement of Pesticides and Soil in Runoff from Vegetable Production: Comparing the Environmental Impact of Vegetable Production Withpolyethylene Mulch and Hairy Vetch Mulch.

Authors
item Rice, Pamela
item McConnell, Laura
item Heighton Davies, Lynne
item Isensee, Allan - RETIRED USDA SY
item Sadeghi, Ali
item Abdul Baki, Aref
item Hertzer, Paul - UNIV MD
item Baker, Joel - UNIV MD
item Hapeman, Cathleen

Submitted to: Proceedings of Northeastern Weed Science Society
Publication Type: Abstract Only
Publication Acceptance Date: November 1, 2000
Publication Date: N/A

Technical Abstract: Current vegetable production systems utilize polyethylene mulch and require multiple applications of pesticides and fertilizers. During rain events, runoff from vegetable production is enhanced because 50 to 75% of the field is covered with an impervious surface. Thus, the potential harmful effects on organisms in nearby streams and rivers from off-site losses of agrochemicals are substantially increased. The objective of our research was to compare the environmental impact of polyethylene and hairy vetch (Vicia villosa Roth) mulch systems by quantifying the off-site movement of pesticides and soil in runoff. Vegetable plots with polyethylene-covered beds and bare soil rows produced larger quantities of runoff containing greater sediment and pesticide loads, which proved to be more toxic to aquatic organisms.

Last Modified: 12/27/2014