Black Vine Weevil is an insect pest that primarily attacks the ericaceous plants, which include the Rhododendron, Azalea, Pieris, and Mountain Laurel. Because of the overwhelming popularity of these plants, this insect has become a very serious pest. The adult weevils emerge from the mulch layer at the base of the plant at night to feed on the lower leaves of the plants, causing the characteristic notches on the leaf margins. While this damage is unsightly, it is not a serious detriment to the plant. The real damage is caused by the larvae of the weevil, which reside in the soil and feed on the roots of the plant. Root damage causes a serious decline in the vigor of the plant, and allows the plant little tolerance to drought. We have had excellent success in treating for Black Vine Weevil.
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