. "In 1993, 97%of the grapes grown for raisin production was `Thompson Seedless` (In: Raisin Committee Marketing Policy 1994-95, Raisin Administrative Committee, Fresno, Calif., 1994).Although Vitis spp. is generally considered to have desirable fruit quality, it is susceptible to many pests and diseases, including anthracnose, black rot, botrytis bunch rot, crown gall, downy mildew, eutypa dieback," . . .