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Author: cuccap

Fusarium wilt had major impact on watermelons

June 27, 2024July 16, 2024 cuccap Cucurbit Crop & Disease Management Resources

There were about 1,500 additional acres planted this year in North Florida following last year’s bumper crop and high prices. However, fusarium wilt disease had a major impact on this year’s crop.

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ONvegetables VCR | June 26, 2024

June 26, 2024August 5, 2024 cuccap Cucurbit Crop & Disease Management Resources

Cucurbit downy mildew has been confirmed in Norfolk County. This is the first report in Ontario for 2024.

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Managing Fusarium wilt in watermelon

June 25, 2024June 25, 2024 cuccap Cucurbit Crop & Disease Management Resources

Growing susceptible cultivars will infest fields with a higher level of Fusarium each time they are planted, leading to long-term problems with Fusarium wilt. Grafting is the most effective option.

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2025 NWA Research Grant Program

June 21, 2024July 16, 2024 cuccap CucCAP Project Partners

The National Watermelon Association is commitment to funding research that supports watermelon farmers. The research that NWA funds through this program is entirely focused on production research, aimed at solving issues growers face on a regional or national basis.

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Downy Mildew detected in Michigan

June 20, 2024August 8, 2024 cuccap CucCAP Team Crop and Disease Management Resources

First 2024 cucurbit downy mildew spores identified in air samples in Saginaw County, Michigan.

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South Carolina Grower Update | June 17, 2024

June 19, 2024August 5, 2024 cuccap Cucurbit Crop & Disease Management Resources

Watermelons are just starting to be harvested and the quality is good. Extension Agents are seeing some diseases in melons and squash, particularly gummy stem blight. Anthracnose is starting to cause a few problems for growers.

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SC Grower Exchange Podcast

June 19, 2024August 5, 2024 cuccap Cucurbit Crop & Disease Management Resources

In this podcast, Professor of Plant Pathology Research and Extension Vegetable Pathologist, Dr. Anthony Keinath discusses recent observations and tips for dealing with fusarium wilt, specifically in watermelons.

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Managing anthracnose disease in watermelons

June 18, 2024June 19, 2024 cuccap Cucurbit Crop & Disease Management Resources

The disease primarily impacts cucumbers and watermelons, but other cucurbits can also serve as hosts. Its symptoms consist of leaf spots, defoliation and an occasional fruit lesion. It can also spread in the fruit bins after harvest, which makes it more difficult to control.

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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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