Downy and Powdery Mildew in Cucurbita
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March 2, 2021

Downy and Powdery Mildew in Cucurbita

Cucurbit downy mildew is caused by two types of the oomycyte Pseudoperonosora cubensis. The first type, known as Clade I, infects pumpkins, watermelon and squash. Clade II infects cucumbers and cantaloupe. Clade I is not seen as frequently as Clade II and shouldn’t be treated until it

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