Plant Plant pathogens in the genus Phytophthora cause significant losses in vegetable and fruit crops in Florida, particularly when conditions are wet. Late blight, caused by Phytophthora infestans, can be very difficult to manage on tomato and potato. Such was the case during the past two seasons when, coupled with other production issues, tomato fields were lost or abandoned.Phytophthora blight on vegetables, caused by P. capsici, is particularly severe on summer squash since it's highly susceptible. The crown and fruit of squash can be infected and the entire plant dies.
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