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    • Cucumber Disease Management
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    • Development of Genomic Tools for Cucurbit Species
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CDM ipmPiPE

The ipmPIPE is a pest mapping and forecasting system that was developed by the National Institute for Food and Agriculture (NIFA) and its land-grant partners.

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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Cucurbit Downy Mildew epidemic update November 2021 | ipmPIPE

November 15, 2021February 18, 2022 cuccap Cucurbit Crop & Disease Management Resources

The ipmPIPE published their final forecast for the 2021 growing season on October 29, 2021.

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Cucurbit Downy Mildew epidemic updates October 2021 | ipmPIPE

October 15, 2021February 18, 2022 cuccap Cucurbit Crop & Disease Management Resources

Epidemic updates include DM on pumpkin, summer squash, watermelon, and butternut squash in MA, Ms, PA, OH, NC, CT, and NY.

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Cucurbit Downy Mildew epidemic updates September 2021 | ipmPIPE

September 17, 2021February 18, 2022 cuccap Cucurbit Crop & Disease Management Resources

New reports of CDM on butternut squash, acorn squash, pumpkin, zucchini, summer squash and cucumber.

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Cucurbit Downy Mildew epidemic updates August 2021 | ipmPIPE

September 2, 2021February 18, 2022 cuccap Cucurbit Crop & Disease Management Resources

New reports of CDM on pumpkin, cantaloupe, cucumber, and butternut squash, in the southeast, northeast, and midwest.

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Cucurbit Downy Mildew epidemic updates August 2021 | ipmPIPE

August 18, 2021February 18, 2022 cuccap Cucurbit Crop & Disease Management Resources

Recent outbreaks of CDM for the period from July 21, 2021 to August 18, 2021.

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Cucurbit Downy Mildew epidemic updates July 2021 | ipmPIPE

July 20, 2021February 18, 2022 cuccap Cucurbit Crop & Disease Management Resources

Epidemic Status Map and updates for CDM (Pseudoperonospora cubensis).

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Cucurbit Downy Mildew epidemic updates June 2021 | ipmPIPE

June 17, 2021February 18, 2022 cuccap Cucurbit Crop & Disease Management Resources

Recent Updates: June 16: First reports from NC and MS. CDM has been confirmed on cucumber in Lenoir County, NC; and on cucumber and cantaloupe in Kemper County, MS.

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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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