1. UC IPM
Fifth instar (shown) and older fourth instar western grapeleaf skeletonizers, <i>Harrisina brillians</i>, chew all the way through grape leaves leaving only the larger veins.
Fifth instar (shown) and older fourth instar western grapeleaf skeletonizers, Harrisina brillians, chew all the way through grape leaves leaving only the larger veins.
Credit: Jack Kelly Clark