Evaluation for an integrated pest management program for northern corn rootworm extended diapause
Date
1992
Authors
Tollefson, Jon
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Leopold Center for Sustainable Agriculture
The Leopold Center is a research and education center on the campus of Iowa State University created to identify and reduce negative environmental and social impacts of farming and develop new ways to farm profitably while conserving natural resources.
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Leopold Center for Sustainable Agriculture
Abstract
Until about 1965, nearly all the northern corn rootworm (NCR) reproduced a single generation yearly. Because it could only survive on cultivated corn and its dispersal stage never coincided with the beginning of a cropping season, crop rotation controlled this pest in Iowa corn fields for over a century.