CucCAP
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  • About
    • Project Overview
    • Meet the CucCAP Project Team
    • Team Member Spotlight
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  • Crop & Disease management
    • Cucumber Disease Management
    • Melon Disease Management
    • Squash Disease Management
    • Watermelon Disease Management
    • Integrated Disease Management
  • Breeding & Genomics
    • Development of Genomic Tools for Cucurbit Species
    • Cucurbit Genomics Database
    • Cucurbit Breeding
    • Breeding Cucumber for Disease Resistance
    • Breeding Melon for Disease Resistance
    • Breeding Squash for Disease Resistance
    • Breeding Watermelon for Disease Resistance
  • Publications
    • Research Publications
    • Research Presentations
    • Crop & Disease Management Publications
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CucCAP Disease Management Team

The Disease Management Team contributions to the CucCAP project include English and Spanish factsheets about cucurbit crop and disease management strategies including images of disease symptoms for crop producers, articles about cucurbit plant pathology, and articles about the team’s research efforts and accomplishments.

CDM confirmed on squash in Johnson County, N.C.

September 5, 2023September 19, 2023 cuccap CucCAP Disease Management Team, Cucurbit disease and pest reports

This disease was confirmed on squash in Johnson County, North Carolina on August 25, 2023. Disease incidence was approximately 15% and the affected leaves showed 45% disease severity.

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Cucumber field trials 2023

August 25, 2023 cuccap CucCAP Disease Management Team

The Vegetable Pathology Lab at NC State conducts field trials each growing season to study plant pathogens, resistance of plant varieties to pathogens, and vegetable disease management strategies. When a field trial is harvested, the crop is weighed, graded, and evaluated for disease damage and marketability.

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Plant Health 2023 Awards

August 15, 2023September 18, 2023 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management

Two members of the CucCAP Integrated Crop and Disease Management Team were selected to receive APS awards in honor of their significant contributions to the science of plant pathology at Plant Health 2023.

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2023 Watermelon trial for Fusarium resistance

July 27, 2023July 27, 2023 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management

Delaying transplanting until the soil has warmed to about 81 degrees at a 4-inch depth can reduce the number of plants with Fusarium wilt.
Eleanor and Fascination are partially resistant cultivars that have been shown to perform better when Fusarium wilt is present. But grafting is more effective…and more expensive

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Cucurbit downy mildew in Michigan

July 20, 2023 cuccap CucCAP Disease Management Team, Cucurbit disease and pest reports

The first symptoms of cucurbit downy mildew disease on pickling cucumber plants in a commercial production field have been verifiedby qPCR in the Saginaw County lab on July 19, 2023. The statewide spore trapping network to detect downy mildew spores in the air has had positives in multiple counties.

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SC Grower Exchange Podcast | Cucurbit Downy Mildew

July 5, 2023July 19, 2023 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management

The June 30 episode of The SC Grower Exchange podcast features CucCAP plant pathologist Dr. Anthony Keinath as he discusses downy mildew in cucurbits and other vegetables.

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Cucumber downy mildew arrives in South Carolina

July 2, 2023July 24, 2023 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management

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.

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Michigan cucurbit report – June 28, 2023

June 29, 2023July 19, 2023 cuccap CucCAP Disease Management Team, Cucurbit disease and pest reports

Clade 2 downy mildew spores were trapped in Michigan last week. Phytophthora infested surface waters may be the only source for irrigation in some areas.

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CucCAP scientists find high prevalence of gummy stem blight resistance to common fungicides

Featured Article

The gummy stem blight fungus, Stagonosporopsis citrulli, is now resistant to fungicides in four chemical classes. The newest resistance is to fungicides in FRAC Code 3. Most isolates (94% of 251) collected from watermelon in South Carolina in 2019 and 2021 were moderately resistant to tebuconazole, a fungicide widely used on watermelon because it is available in low-cost generic products. Highly resistant isolates were cross-resistant to five other fungicides in the same chemical class as tebuconazole: tetraconazole, flutriafol, difenoconazole, prothioconazole, and the newly registered mefentrifluconazole. Currently, only 4% of the isolates are highly resistant, so growers are encouraged to limit use of tebuconazole to one early season application to avoid shifting the population from moderately resistant to resistant.

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Cucurbit Disease Management

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USDA National Institute of Food and Agriculture U.S. DEPARTMENT OF AGRICULTURE

The Cucurbit Coordinated Agricultural Project (CucCAP) is a USDA-National Institute of Food and Agriculture Specialty Crop Research Initiative grant under award number
2020-51181-32139.

Cooperating Institutions:

Boyce Thompson Institute; Cornell University; Michigan State University; North Carolina State University; Clemson University; University of Puerto Rico; University of Wisconsin; University of Florida; University of Georgia; West Virginia State University; U.S. Department of Agriculture, Agricultural Research Service

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