New basil downy mildew images added to the basil downy mildew photo gallery: Under humid conditions the pathogen produces an abundance of dark spores as shown in photographs below from Fran Smith in Pennsylvania ...
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Leaf spots and stem symptoms caused by Phytophthora nicotianae very closely resemble those produced by the related pathogen Phytophthora infestans, which causes late blight. These pathogens differ substantially in the quantity of spores (sporangia) ...
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Meg McGrath, vegetable pathologist based at the Long Island Horticultural Research & Extension Center, talked with Margaret Roach about tomato troubles on Roach’s popular A Way to Garden podcast. Listen/download .mp3 Read interview on Roach’s ...
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Technical reports on resistant varieties, Late Blight Decision Support System (DSS) and more. View page.
The soil-borne oomycete pathogen Pythium (several species) can attack roots and crown tissue. Young plants are more susceptible due to tender stem tissue. Wet soils provide favorable conditions for the pathogen to develop. Cool soils are also ...
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Here are three new resources from Margaret McGrath: Late Blight Management in Tomato with Resistant Varieties – eXtension factsheet includes table of resistant varieties. Cucumber Varieties Evaluated for Resistance to Downy Mildew on Long Island ...
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