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Author: cuccap

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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New photo gallery: Cercospora leaf spot of Cucumber

August 14, 2021September 22, 2021 cuccap Cucurbit Crop & Disease Management Resources

The Long Island Horticultural Research and Extension center’s Vegetable Pathology group added a new photo gallery of Cercospora leaf spot of Cucumber.

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Early Career Scientist Spotlight | Andrea P. Landrón García

August 10, 2021January 26, 2023 cuccap CucCAP Squash Team

CucCAP scientist Andrea P. Landrón García’s research is focused on the creation of future resistant lines of squash with resistance to powdery mildew using resistant materials with local materials in Puerto Rico.

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Ontario CDM Spore Trap Network July update

August 7, 2021September 2, 2021 cuccap Cucurbit Crop & Disease Management Resources

Spore traps installed on June 7th in Ontario Canada detected no Cucurbit downy mildew until July 29, 2021.

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ONvegetables VCR | July 29, 2021

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

ONvegetables publishes monthly crop reports for commercial vegetable producers in Ontario, Canada. Spider mites were confirmed on cucurbits in the July 29, 2021 crop report. View the report to view images of mites and symptoms of Phytophthora crown rot . Wet conditions have been conducive to the development of Phytophthora crown rot

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Michigan vegetable crop report – Aug. 4, 2021

August 4, 2021July 26, 2023 cuccap Cucurbit Crop & Disease Management Resources

“Downy mildew continues to infect cucumber plantings. Powdery mildew and gummy stem blight are starting to show up in hard squashes.”

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CucCAP scientists study effect of genome doubling on gene expression in tetraploid watermelon

August 3, 2021August 19, 2021 cuccap CucCAP Watermelon Team, Featured Articles

Umesh Reddy and team at WVSU and Amnon Levi and team at USDA, ARS used advance genome sequencing technology to study the effect of genome doubling on gene expression in tetraploid watermelon versus their counterpart diploid watermelon parental plants.

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Squash Downy Mildew Found in North Carolina

August 2, 2021August 2, 2021 cuccap Cucurbit Crop & Disease Management Resources

Currently, both clade 1 and clade 2 have arrived in North Carolina through air currents.

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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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