Field reports from ISU Extension crop specialists indicate that the bean leaf beetle population is now moving into emerging beans, except in the northern two to three tiers of counties. The populations appear to be fairly large in some central and southern Iowa fields and beetles are feeding on soybean seedlings as soon as they crack the soil. Fields with emerging seedlings should be scouted closely during the next couple of weeks. See last week's newsletter (pages 73-74) for suggestions on managing this pest and the bean pod mottle virus that it may transmit.
Iowa State University
Rice, Marlin E., "Bean leaf beetles in soybean stubble and corn" (2001). Integrated Crop Management News. 1866.
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