Tag Archives: cucurbits

Cucurbit Downy Mildew Found in SC

This past week cucurbit downy mildew was found in Charleston and Horry Counties.  Downy mildew blows in from the south in the summer and is a very serious disease once it is established.  Anyone growing cucurbit crops (cucumber, watermelon, squash, … Continue reading

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Question of the Week: Poor Pollination

Last week the question was:  What is wrong with the three cucumbers on the right? These cucumbers are misshaped because of poor pollination.  Cucumbers need several hundred grains of pollen to be properly pollinated.  Pollen from male cucumber flowers is … Continue reading

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Question of the Week: Virus

Last week the question was:  What is wrong with this pumpkin plant? These are symptoms of a virus.  It could be either papaya ringspot virus, watermelon mosaic virus, or zucchini yellow mosaic virus.  It’s difficult to distinguish the three without … Continue reading

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Question of the Week: Poor Pollination

Here is this week’s question:  Why is this greenhouse cucumber shaped like this? This cucumber is the result of poor pollination.  Here is a great description of pollination and pollination problems from the Missouri Botanical Gardens:  “Cucurbits are monoecious; there … Continue reading

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Question of the Week: Powdery Mildew

Last week the question was:   What is the white stuff on these cucumber leaves? This is powdery mildew.  It loves warm, humid weather and can spread quickly when these conditions occur.  A greenhouse is a great place for powdery mildew … Continue reading

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Cucurbit Downy Mildew Found in SC

Cucurbit downy mildew was confirmed this past week in South Carolina by Clemson Plant Pathologist Tony Keinath.  Here are a few comments from Dr. Keinath on downy mildew. “Cucurbit downy mildew was confirmed on two cucurbit crops in two counties … Continue reading

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Cucurbit Downy Mildew Management for 2015

Clemson Extension Plant Pathologist Tony Keinath recently released this management guide for Downy Mildew in cucurbits. Here are the links to the resources referenced in Dr. Keinath’s guide: Cucurbit Downy Mildew Alert System Southeastern Vegetable Crop Handbook The downloadable PDF … Continue reading

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