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cucurbit virus

South Carolina Extension Update – 9/20/2023

September 20, 2023September 26, 2023 cuccap Cucurbit Crop & Disease Management Resources

In the South Carolina Midlands, Fall squash has produced exceptionally well, with the biggest issue being mosaic virus.

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Early Career Scientist Spotlight | Bazgha Zia

September 18, 2023September 26, 2023 cuccap CucCAP Watermelon Team

Bazgha Zia is a postdoctoral researcher at the United States Vegetable Laboratory in Charleston, S.C. Bazgha’s research includes the development of virus resistant genetic material in cucurbits and  identification of novel virus strains.

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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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Specialty Crop News | April 2022

April 7, 2022June 12, 2024 cuccap Cucurbit Crop & Disease Management Resources

The April issue of Specialty Crop Industry Magazine highlights watermelon production. It looks at the current trends and the future of anthracnose disease while also spotlighting new viruses to watch for in watermelons and other cucurbit crops.

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Insecticide Rotation & Management of Whiteflies

January 11, 2022October 14, 2023 cuccap Cucurbit Crop & Disease Management Resources

Insecticide rotation is key in long-term management of whiteflies. Whiteflies can transmit cucurbit leaf crumple virus and cucurbit yellow stunting disorder virus.

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Fall Watermelon Production Not Recommended in North Florida

October 21, 2021August 27, 2024 cuccap Cucurbit Crop & Disease Management Resources

University of Florida Institute of Food and Agricultural Sciences scientists do not recommend that Florida watermelon growers grow watermelons in the fall. This assessment is attributed to the multiple variables growers must overcome including weather, high disease pressure and whitefly infestations.

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Whitefly infestations vary across Florida

October 14, 2021August 27, 2024 cuccap Cucurbit Crop & Disease Management Resources

The October newsletter from the South Florida Pest and Disease Hotline reports that whitefly infestations are widely present across central Florida. They are low to moderate in cucumber and squash. Populations are very low in watermelon.

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Two New Viruses a Concern for Florida Watermelon Industry | VSCNews

October 5, 2021August 27, 2024 cuccap Cucurbit Crop & Disease Management Resources

Two new watermelon viruses discovered recently in Texas are now a concern of Florida producers. The crinkled leaf-associated virus 1 and 2 have been found in Collier, Desoto, Glades, Osceola, Charlotte and Seminole counties. They just add to a long list of disease and virus challenges that farmers must overcome in the Southeast.

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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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