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    • Cucumber Disease Management
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    • Development of Genomic Tools for Cucurbit Species
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Cucurbit Crop & Disease Management Resources

Plant Disease clinics in the USA, Cucurbit disease forecasters, Field & Variety Trials, Cucurbit Variety Trials, Pest Management, Cucurbit Production manuals & handbooks, Disease diagnosis, Disease outbreaks, Extension news, and Cucurbit Grower news.

PDMR 14 – Plant Disease Management Reports for Cucurbits

October 16, 2020December 19, 2023 cuccap CucCAP Disease Management Team, Cucurbit Crop & Disease Management Resources

PDMR, Volume 14, 2020
Results of 2019, Published in 2020.
Plant Disease Management reports for cucumbers and squash.Evaluations include control of Downy mildew on cucumber, Downy mildew on squash and Phytophthora fruit rot on squash.

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USDA Announces National Watermelon Promotion Board Appointments | VSCNews

October 15, 2020December 15, 2020 cuccap Cucurbit Crop & Disease Management Resources

The U.S. Department of Agriculture announced the appointment of nine members to serve on the National Watermelon Promotion Board this week. The appointees will serve three-year terms from Jan. 1, 2021, to Dec. 31, 2023.

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Cucurbit Downy Mildew epidemic updates Sept. 14 to Oct. 13, 2020 | ipmPIPE

October 13, 2020May 24, 2023 cuccap Cucurbit Crop & Disease Management Resources

In the previous 30 days, CDM was reported in LA, AL, VA and MN.

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South Carolina Crop Update | VSCNews

October 9, 2020August 27, 2024 cuccap Cucurbit Crop & Disease Management Resources

The cooler weather and lots of rain have brought out the diseases.

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Abnormally Wet Fall Challenging for Alabama Pumpkin Producers

October 9, 2020August 27, 2024 cuccap Cucurbit Crop & Disease Management Resources

Certain diseases become a factor if pumpkins are growing in fields with increased moisture.

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Growers Need as Many Tools as Possible to Control Whiteflies | VSCNews

October 6, 2020August 27, 2024 cuccap Cucurbit Crop & Disease Management Resources

Southeast growers can produce a spring and fall crop thanks to an environment that’s conducive to growing crops year-round. However, that makes certain cucurbits like squash especially vulnerable to whitefly pressure.

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How to Identify Squash Vine Borers, Pickleworms, and Melonworms

October 1, 2020May 21, 2021 cuccap Cucurbit Crop & Disease Management Resources

Alabama Cooperative Extension discusses how to Identify Squash Vine Borers, Pickleworms, and Melonworms: How to Identify Squash Vine Borers, Pickleworms, and Melonworms

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First CucCAP Grant Cucumber Research Publications

September 30, 2020January 10, 2022 cuccap CucCAP Cucumber Team, Cucurbit Crop & Disease Management Resources

The CucCAP#1 Cucumber Team published 21 research articles between Sept. 2015 & Sept. 2020.

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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

 

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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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