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Bean leaf beetles are about 1/4 inch long and yellow, tan, or red in color with various black markings. They are distinguished by a black triangular mark at the front of the wing covers.
This beetle feeds on foliage, blooms, small pods, and the outer layers of older pods. In addition to direct feeding injury, the adults also transmit viral diseases which reduce seed quality. Larvae feed on soybean roots and nodules, but their economic significance is uncertain. Bean leaf beetle occurs throughout the Midwest and South. |
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