Field crop pests
1985
Suguiyama, Luis F. | Carlson, Gerald A.
The extent of pesticide use and the prevalence of pest populations on field crops vary according to the type of pest, crop, region, and survey year. This report estimates the importance of individual pests on selected field crops on a regional and national basis. Surveyed farmers report the most severe and intense pests were weeds in corn and soybean production, weeds and insects in cotton, and diseases and insects in tobacco.
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出版者 Supt. of Docs., U.S. G.P.O. [distributor] | Washington, D.C. : U.S. Dept. of Agriculture, Economic Research Service : Supt. of Docs., U.S. G.P.O. [distributor], 1985
