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
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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.

Early Career Scientist Spotlight | Matthew Uebbing

September 21, 2021September 22, 2021 cuccap CucCAP Disease Management Team

Matthew is evaluating fungicide sensitivity of CDM to single fungicide products and efficacy of forecasters in controlling CDM and spore trapping of P. cubensis using impaction spore traps.

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PDMR 15 – Plant Disease Management Reports for Cucurbits

August 16, 2021December 20, 2023 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management Resources

PDMR, Volume 15, 2021
Results of 2020 field trials, Published in 2021.
Plant Disease Management reports for cucumbers and squash.

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Mary Hausbeck discusses oomycetes | GLVPN

August 2, 2021September 27, 2023 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management Resources

CucCAP plant pathologist, Mary Hausbeck joined the July 28, 2021 podcast to talk about a group of pathogens called oomycetes

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Downy mildew confirmed in Michigan

July 24, 2021December 13, 2022 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management Resources

Downy mildew has been confirmed on cucumbers in four Michigan counties. CucCAP vegetable pathologist, Mary Hausbeck recommended that cucumber growers take agressive action due to recent humid conditions and presence of cucurbit downy mildew spores.

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Clemson Extension Updates | VSCNews

July 19, 2021June 12, 2024 cuccap CucCAP Disease Management Team

CucCAP vegetable pathologist, Dr. Tony Keinath discusses fungicide stewardship.

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Great Lakes EXPO returns to in-person event for 2021

June 18, 2021July 16, 2021 cuccap CucCAP Disease Management Team

The dates for the 2021 EXPO are set for Dec. 7-9, 2021.

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Downy Mildew Spores Identified in Michigan

June 1, 2021June 1, 2021 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management Resources

First cucurbit downy mildew spores identified in air samples in Allegan County
by: Mary Hausbeck, Annika Peterson and Doug Higgins

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CucCAP researches reveal Phytophthora capsici loci involved in mating type and mefenoxam sensitivity

May 1, 2021January 25, 2023 cuccap CucCAP Disease Management Team, Featured Articles

In this study, researchers at Cornell collected 252 strains of the pathogen from across New York State and sequenced portions of their DNA in order to characterize the genetic structure of the pathogen population.

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Featured Article

CucCAP scientists identify markers for powdery mildew resistance in watermelon

Powdery mildew outbreaks, caused by Podosphaera xanthii, cause reduced yields and fruit quality in watermelon. CucCAP scientists at Clemson University and the USDA Vegetable Laboratory Charleston SC employed a bulked segregant analysis approach using data from 1147 accessions from the USDA Citrullus germplasm collection to perform an extreme-phenotype genome-wide association study (XP-GWAS) of tolerance to P. xanthii race 2W. Kompetitive Allele-Specific PCR (KASP) markers were designed for significant SNPs associated with reduced disease. The best marker in each region explained 21-31% of the variation in powdery mildew tolerance.

For further reading:

Branham et al., 2025. Extreme-phenotype genome-wide association study (XP-GWAS) of powdery mildew race 2 W tolerance in the USDA Citrullus germplasm collection. Scientific Reports. DOI10.1038/s41598-025-89445-8

 

News, Events, and the latest Cucurbit Disease Information

  • CucCAP Featured Articles
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  • Cucurbit Disease Factsheets
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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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