Synonyms: Asian Oak Weevil.
The Asiatic Oak Weevil "was introduced into the United States in 1933 (New Jersey) and now occurs throughout much of the East. Small, legless grubs associated with the roots of hardwood trees survive the fall, winter, and early spring. The grubs pupate and new adults emerge during the spring to feed on the leaves of oaks and chestnut. Asiatic oak weevils emerge in May and become most abundant in late June and early July. They feed on the margins of leaves, sometimes devouring everything but the main veins. This weevil takes shelter in leaves tied together by caterpillars. The weevils start laying eggs in soil in July and continue on into early fall" (NC State Extension, 2019).
This weevil is small (1/4 to 1/3 inch long) and broad-nosed. It is usually greenish-gray, but if its scales are worn away, it may appear reddish-brown.
Oak and chestnut leaves are the favored food of the Asiatic Oak Weevil. A bad infestation can lead to excessive leaf damage. American Chestnut (Castanea dentata) and closely related hybrids seem to be more susceptible than is Chinese Chestnut (Case, et al., 2016).
There are 285 records in the project database.
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