Plant Disease Management Handbook | Pacific Northwest Pest Management Handbooks

This handbook is intended as a ready reference guide to the control and management tactics for the more important plant diseases in the Pacific Northwest. This book should be used by—and has been expressly written for—county Extension agents, consultants, field and nursery people, and chemical industry representatives. Growers, Master Gardeners, and homeowners may also find […]

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PP280/PP280: Management of Gummy Stem Blight (Black Rot) on Cucurbits in Florida

Source: PP280/PP280: Management of Gummy Stem Blight (Black Rot) on Cucurbits in Florida Gummy stem blight (GSB) is a major disease of many cucurbits, including watermelon, cantaloupe, cucumber, pumpkin, squash, muskmelon, and other melons. The fungus Didymella bryoniae is the causal organism for this disease. Infection on watermelon and cantaloupe is commonly seen in Florida, and the […]

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Cucurbit Downy Mildew | NC State University

Cucurbit downy mildew is caused by the fungus-like oomycete pathogen Pseudoperonospora cubensis (P. cubensis). There are two types of P. cubensis isolates that can infect cucurbit crops and weeds referred to as clade 1 or clade 2 isolates. Isolates belonging to clade 1 tend to more frequently infect watermelon, pumpkin, and squash while isolates belonging […]

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