![]() All other lady beetles are beneficial because they feed on insect pests, such as aphids and scale insects.ĭestroy crop residues after harvest and reduce overwintering sites by tilling. ![]() ![]() ![]() The adult of the squash beetle overwinters in crop debris. The other species, the Mexican bean beetle ( Epilachna varivestis), a close relative of the squash beetle, is a serious bean pest. The squash beetle feeds upon the leaves of cucurbits. Clemson University – USDA Cooperative Extension Slide Series, The squash beetle ( Epilachna borealis) is one of two species of Coccinellidae known to occur in the United States that eat plant material rather than other insects. Adult squash beetle ( Epilachna borealis), with spiny larva at left.
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