1. 6530 was selected for resistance to the following pests: bacterial wilt, Fusarium wilt, Verticillium wilt, Phytophthora root rot, anthracnose (race 1), Aphanomyces root rot (races 1 and 2) and lesion nematode. Phenotypic recurrent selection was used. Final selections were made from 2-3 year old space plant selection nurseries near Larned, Kansas; Napier, Iowa; and Marshfield, Wisconsin based on yield, winter survival, fall dormancy, leafhopper ye