AuthorKnowles, Tim C.
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AbstractThe first sign of a potential alfalfa caterpillar (Colias eurytheme) outbreak is the influx of large numbers of yellow or white butterflies in late spring or early summer. This publication discusses the biology of the alfalfa caterpillar, the damage it causes, the biological and cultural controls, and the treatments for it.
Series/Report no.University of Arizona Cooperative Extension Publication AZ1045
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