2011-07-012011-07-011975https://hdl.handle.net/10365/17281Circular A-592. Compiled by the Plant Science Section of the Cooperative Extension Service and Agronomy, Entomology, Plant Pathology, Horticulture and Soils Department of the Agricultural Experiment Station, North Dakota State University, Fargo, North Dakota ; in cooperation with North Dakota Agricultural Association.NDSU Agriculture and University Extension: Creative Commons Licensing Deed (http://creativecommons.org/licenses/by-nc-sa/3.0/)Crop science.Pesticides.A-592