Cucurbit downy mildew has been identified in a cucumber field in Kent County. Disease presence is very low with less than one percent of the plants exhibiting lesions at this time. The field has been treated with preventative fungicides. This is the first report of cucurbit downy mildew in Ontario for the 2023 growing season.
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ONvegetables VCR | July 4, 2023
Cucurbit downy mildew has been identified in a cucumber field in Kent County, Ontario. Disease presence is very low with less than one percent of the plants exhibiting lesions at this time.
SC Grower weekly report | July 3, 2023
Cucurbits are being harvested in multiple regions of S.C. In the Midlands, Squash are still being picked with anthracnose present at greater frequency. Mosaic virus has also been more prevalent. Disease pressure is high. Striped cucumber beetle and army worms have been seen on squash.
Cucumber downy mildew arrives in South Carolina
This article for gardeners is published in The Post and Courier, a Charleston S.C. newspaper. The article discusses Cucurbit downy mildew on several varieties of cucumber, other cucurbits, and other crops.
Clemson field updates | June 26, 2023
Summer squash is being harvested. Growers are seeing some internal ripening issues in squash and agents suspect it to be a seed issue. Squash vine borers have started showing up in spots. Foliar diseases such as gummy stem blight in cucurbits are beginning to take off,.
Fungicide management options | SC Grower
A fungicide sensitivity bioassay was conducted between June 1 and June 10 to determine which fungicides can be used against the current outbreak of powdery mildew on squash, watermelon and other cucurbits.
2023 Fusarium Wilt experiment
From Clemson Plant Pathologist Tony Keinath. This year’s Fusarium wilt experiment includes 3 seedless cultivars, 3 fungicide treatments applied via drip irrigation, and grafting. preliminary results are based on disease development 10 weeks after transplanting.
Phytophthora capsici in irrigation water
CucCAP vegetable pathologist Dr. Mary Hausbeck discusses how Phytophthora capsici can be introduced to crops when irrigating vegetables with surface water during dry conditions.
