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Black Vine Weevil and Strawberry Root Weevil

Black Vine Weevil: Host and Damage


UMass Extension
Adult damage on rhododendron

Oregon State University
Extension

Larval damage on stems

UMass Extension
Adult damage on yew
HOST:
The preferred hosts of black vine weevil are yews (Taxus spp.) and rhododendrons (Rhododendron spp.), but they also attack as many as 100 different trees, shrubs, vines and flowers including begonia, cyclamen, euonymus, geranium, grape, hemlock, lilac, peony, raspberry, spirea, strawberry, and wisteria.

DAMAGE:
Both adults and larvae feed on the host plants. The adults feed at night on the edges of leaves and flowers leaving notches or scalloping. The damage caused by adults is not harmful itself, but is a clear sign of a black vine weevil larval infestation of the roots, which can kill the plant. The larvae prefer to feed on young roots, but if those become scarce or there is excess moisture, they will move toward the stem and feed on older roots or even the main plant stem, which will girdle and kill the plant.
DISTRIBUTION DESCRIPTION HOST AND DAMAGE LIFE CYCLE
MONITORING AND CONTROL BIOLOGICAL AND MECHANICAL CONTROL STRAWBERRY ROOT WEEVIL RESOURCES
RELATED ARTICLES: BLACK VINE WEEVIL BIOLOGY AND MANAGEMENT, YEWS IN CONNECTICUT

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Last modified on March 06, 2013