Watermelon production in the southeastern U.S. is subject to severe crop losses due to several viruses, including squash vein yellowing virus (SqVYV). Gene expression analysis of a resistant breeding line by the Kousik group at the U.S. Vegetable Laboratory Charleston SC, indicated potential involvement of a variety of defensive responses including inhibition of virus movement, […]
cucurbit virus
CucCAP scientist documents emergence of new melon and watermelon virus in southwestern U.S.
Researchers studied the new mosaic symptomology and foliar distortion of new growth observed in Arizona and California on melon and watermelon.
2025 NWA Research Grant Program
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.
Sources of resistance identified for Cucurbit chlorotic yellows virus in squash germplasm
Researchers at the University of Georgia performed greenhouse trials to verify promising germplasm identified from field studies.
Specialty Crop Grower | Emerging Viruses of Cucurbits
CucCAP scientist Bill Wintermantel discusses the status of new virus diseases in the article, Tracking viral diseases in cucurbit crops on page 20 of the April edition of Specialty Crop Grower.
South Florida Pest and Disease Hotline | March 2024
Anthracnose has been reported in watermelon plants submitted to Southwest Florida Research & Education Center.
South Florida Pest and Disease Hotline | Dec. 3, 2023
Widespread Cucurbit yellow stunting disorder virus (CYSDV), squash vein yellowing virus (SqVYV), and cucurbit leaf crumple virus (CuLCrV) infestations have been reported on watermelon in multiple locations. Crumple virus and yellow stunt virus are now common in mature watermelon fields with low levels of vine decline.
Gummy stem blight is reaching moderate to high levels in watermelon fields.
Low levels of Anthracnose on watermelons.
Powdery mildew and Downy mildew was reported in cucumber and squash. Downy mildew is expected to increase in melons due to the recent rain.
