Pest News: New Cucurbit Downy Mildew Report in Cucumber From Franklin County and Several Cucurbits in Johnston County

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Cucurbit downy mildew was reported on cucumber in Franklin County on June 22nd and on cantaloupe and pumpkin yesterday June 25th, through the Cucurbit downy mildew IPM pipe website. Cucurbit downy mildew has also been reported in watermelon and squash in Charleston County, SC. Now that several cucurbits are being affected in NC and neighboring states its important that growers scout their fields twice a week and protect their crops. The forecast for cucurbit downy mildew risk in NC continues to be high due to the wet weather we have experienced.

For control recomendations and who to contact for assistance please refer to the first NC report from Wayne County, or check our factsheets in english and spanish.

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Cucurbit downy mildew symptoms on cucumber leaf (Photo Lina Quesada, NCSU vegetable pathology)

Cucurbit downy mildew symptoms on cucumber leaf (Photo Dr. Lina Quesada, NCSU Vegetable Pathology Lab)

Cucurbit downy mildew dark sporulation on back side of cucumber leaf (Photo Lina Quesada, NCSU vegetable pathology)

Cucurbit downy mildew dark sporulation on back side of cucumber leaf (Photo Dr. Lina Quesada, NCSU Vegetable Pathology Lab)

Cucurbit downy mildew symptoms on cantaloupe (Photo, Lina Quesada, NCSU vegetable pathology)

Cucurbit downy mildew symptoms on cantaloupe (Photo Dr. Lina Quesada, NCSU Vegetable Pathology Lab)

Written By

Photo of Dr. Lina Quesada-OcampoDr. Lina Quesada-OcampoAssistant Professor, Plant Pathology (Cucurbits and Sweetpotato) (919) 513-3530 lina_quesada@ncsu.eduEntomology and Plant Pathology - NC State University
Updated on May 6, 2016
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