Cucurbit powdery mildew is a chronic and major disease problem of cantaloupe and honeydew production worldwide. Early infection can kill plants or drastically reduce fruit yield; late infection reduces fruit quality. The cucurbit powdery mildew responsible for powdery mildew disease in the USA is Podosphaera xanthii. Two races of P. xanthii were known in California until 2003 when a […]
