Plum curculio, Conotrachelus nenuphar (Herbst), a weevil which causes damage to plums, apples, peaches, pears and other fruits. It is widely distributed east of the Rocky Mountains, and is native to North America
Date
scanned 2008-1-29
Source
Scanned illustration from the "Report of the Entomologist, U.S. Dept. Agr. 1888
Original image is in the public domain. Higher resolution scans available from me
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The plum curculio (Conotrachelus nenuphar) is a beetle. It is a true weevil native to the regions east of the Rocky Mountains in the United States and Canada. The name is somewhat misleading because this insect attacks not only plums, but also apples, peaches, pears, cherries, quince, and other wild and cultivated fruits. It can be very destructive. Injury results first from the spring feeding of adult beetles, then from female egg punctures in the fruit, next from the feeding of larvae within the fruit, and finally from the early fall feeding of adult beetles.