Andy's Advice: Late Bligli In Potato

摘要

Late blight is caused by the fungus-like oomycete pathogen Phytophthora infestans. The primary host is potato but P. infestans can also infect other solana-ceous plants including tomatoes, petunias, and hairy nightshade that can act as source of inoculum to potato. In North America, late blight survives between seasons in infected seed tubers, cull piles and volunteer plants. This potentially devastating disease can infect potato foliage and tubers at any stage of crop development. It is necessary to know the symptoms and disease cycle of this rapidly destructive disease in order to implement management options.