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    • Cucumber Disease Management
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Cucurbit Downy Mildew

Advances made against cucumber downy mildew

March 22, 2022August 30, 2022 cuccap Cucurbit Crop & Disease Management Resources

Mary Hausbeck talked about downy mildew during the pickling cucumber session at the 2021 Great Lakes Fruit, Vegetable & Farm Market EXPO.

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Custom Cucurbit Downy Mildew Alerts

March 18, 2022March 22, 2022 cuccap Cucurbit Crop & Disease Management Resources

To receive a customized text or email alert for your area when new outbreaks of Cucurbit Downy Mildew are confirmed, fill out the form on the CDM ipmPipe Cucurbit Downy Mildew forcasting website.

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Planting Cucumbers Early to Avoid Downy Mildew

February 18, 2022June 2, 2022 cuccap CucCAP Cucumber Team, CucCAP Disease Management Team, Cucurbit Crop & Disease Management Resources

Downy mildew affects cucumber crops in South Carolina every year and can cause huge crop losses. Clemson University researchers say planting early can cut growers’ losses.

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Reporting Cucurbit Downy Mildew

February 17, 2022February 18, 2022 cuccap Cucurbit Crop & Disease Management Resources

The CDM ipmPIPE website provides a place for Cucurbit Growers, Plant Pathologists, and Extension Agents to report incidents of Cucurbit Downy Mildew.

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Downy Mildew & Powdery Mildew on Florida Squash

February 1, 2022February 23, 2022 cuccap Cucurbit Crop & Disease Management Resources

The January 31, 2022 edition of The South Florida Pest and Disease Hotline reported widespread issues with downy mildew in squash in South Florida. Downy mildew is also widely present in Homestead on squash and oriental cucurbits.

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Florida Cucurbit pest report for January 2022

January 31, 2022October 13, 2023 cuccap Cucurbit Crop & Disease Management Resources

Downy mildew and virus causing whiteflies threaten cucurbits in Florida in January 2022.

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Florida cucurbit pest and disease reports

January 11, 2022June 2, 2022 cuccap Cucurbit Crop & Disease Management Resources

The January South Florida Pest and disease hotline reported that Whitefly pressure continues to range from low to moderate. Cucurbit downy mildew and powdery mildew are active in squash and cucumbers.

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Cucurbit Downy Mildew reported in Florida

December 27, 2021August 27, 2024 cuccap Cucurbit Crop & Disease Management Resources

Downy mildew is a problem for Florida’s cucurbit farmers. The disease has been reported recently in cucumber, squash, and watermelon fields.

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Featured Article

CucCAP scientists use cucumber core collection to map fruit quality traits

The CucCAP core collection, comprised of 388 accessions representing >96% of the genetic diversity for cucumber present in the U.S. National Plant Germplasm System, harbors important sources of disease resistance. As sources of resistance are often present in germplasm with poor fruit quality, scientists from Michigan State University characterized the collection for fifteen fruit quality traits. Genetic associations (QTL) for each trait were identified from genome-wide association studies (GWAS). Many of the genetic locations were in close vicinity to previously identified fruit trait QTL and candidate genes; several novel loci and genes potentially important for these traits were also identified.

For further reading:

Lin YC, Weng Y, Fei Z, Grumet R. 2025. Mining the cucumber core collection: phenotypic and genetic characterization of morphological diversity for fruit quality characteristics. Horticulture Research 12:uhae340.

 

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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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