Found on fox grape Vitis labrusca. "Striped garden snails, Cepaea nemoralis, have become important contaminants of juice grapes at harvest in certain areas (Niagara County, NY and Canandaigua, Ontario County, NY). The snails do not directly feed upon grapes; however, they climb up into the grape canopy..." -- from 2000 Report to the NY State IPM Grants Program