Landscape diversification, including the use of cover crops, can provide habitat and forage for beneficial insects. This is especially true in the spring when there is a lack of food. Alternatively, cover crops can also support field crop pests, including moths, beetles, flies and slugs. The early spring vegetation, sometimes called a “green bridge,” provides resources until the row crops emerge. In the past, several green bridge pests have become common in Iowa.
Iowa State University
Hodgson, Erin W., "Scouting for Pests in Iowa Cover Crops" (2017). Integrated Crop Management News. 2430.
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