CucCAP
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  • About
    • Project Overview
    • Meet the CucCAP Project Team
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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
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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.

Disease Factsheets for Emerging Viruses

June 23, 2023September 26, 2023 cuccap CucCAP Disease Management Team

The Emerging Viruses in Cucurbits Working Group includes members from the CucCAP team. The EVCWG website provides resources for Cucurbit growers including virus factsheets. Visit the CucCAP disease management pages to find links to disease factsheets for these viruses and other Cucurbit diseases.

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Phytophthora capsici in irrigation water

June 23, 2023June 23, 2023 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management Resources

CucCAP vegetable pathologist Dr. Mary Hausbeck discusses how Phytophthora capsici can be introduced to crops when irrigating vegetables with surface water during dry conditions.

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Michigan Cucurbit update | June 21, 2023

June 21, 2023August 21, 2023 cuccap CucCAP Disease Management Team

Clade 2 downy mildew infects cucumbers and melons and spores from this subtype were trapped in Bay, Allegan and Saginaw counties last week.

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Clade 2 Cucurbit downy mildew spores in Michigan

June 13, 2023July 3, 2023 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management Resources

Growers are urged to scout cucumbers and melons and check the website for updates.

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Integrated Crop and Disease Management Team | 2023 Progress Report

June 10, 2023August 7, 2024 cuccap CucCAP Disease Management Team

View all tables and figures in pages 62 – 85 of the pdf version of this report.

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Powdery Mildew on Watermelon in SC

May 27, 2023December 1, 2023 cuccap CucCAP Disease Management Team

CucCAP Plant Pathologist Tony Keinath found Powdery Mildew on seedless watermelon at the Clemson Coastal Research and Education Center (REC) on Tuesday, May 23.

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Powdery Mildew on Watermelon

May 26, 2023June 7, 2023 cuccap CucCAP Disease Management Team

Powdery mildew was found on three cultivars of seedless watermelon at the Clemson Coastal REC on May 23, 2023

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Gummy Stem Blight resistant to multiple fungicides

April 28, 2023May 22, 2023 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management Resources

Gummy stem blight on watermelon is on the FRAC “most wanted” list of pathogens at high risk of becoming resistant to multiple fungicides.

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Featured Article

CucCAP scientists identify powdery mildew resistant pumpkin lines with good canning quality

Processing pumpkins grown for pie are susceptible to infection by cucurbit powdery mildew. CucCAP researchers at Cornell University sought to identify powdery mildew-resistant reeding lines with high canning quality by testing progeny derived from a cross between the susceptible industry standard and a resistant butternut squash. Two breeding lines identified with moderate and high levels of resistance were assessed for multiple canning quality traits in comparison with a store-bought commercial standard. These studies indicated that effective resistance has been bred into a commercially promising processing pumpkin background.

For further reading:

Indemaur et al., 2025. Processing Pumpkin (Cucurbita moschata Duchesne) Breeding Lines with Resistance to Powdery Mildew and Their Canning Quality. HortScience 60:530-537. DOI 10.21273/HORTSCI18433-24

 

News, Events, and the latest Cucurbit Disease Information

  • CucCAP Featured Articles
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  • Cucurbit Crop and Disease News
  • Upcoming Events
  • Cucurbit Disease Factsheets
  • Plant Disease Clinics
  • Field Trial Reports
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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