Grape Leaf Skeletonizer, Harrisina americana (Guerin) (Lepidoptera: Zygaenidae): Collected in black light trap, June 28, 1974, in Washington County.
Description
This pest ranges throughout the eastern United States. It is usually not a serious pest of grapes but on occasion the larval stage has been known to cause extensive defoliation of vines. Adult moths are black with a yellowish or orange collar. The larvae are yellowish and have black spots or bands. They are slightly more than 1/2 inch long when mature.
Damage
Brown, necortic skeletonized leaf tissue is the result of young larvae feeding on the foliage. As the larvae mature they will devour the leaf, leaving only a few large veins. Larvae are often found feeding in groups. As they mature they tend to disperse into smaller groups or as isolated individuals.
Current pesticide recommendations may be found HERE