The January South Florida Pest and disease hotline reported that Whitefly pressure continues to range from low to moderate. Cucurbit downy mildew and powdery mildew are active in squash and cucumbers.
Powdery Mildew
Melon Team | 2021 Progress Report
Jim McCreight leads the Melon team. Their objectives are to Map and develop markers for disease resistance in Melon and introgress, pyramid/stack resistances into advanced breeding lines.
Michigan vegetable crop report – Aug. 4, 2021
“Downy mildew continues to infect cucumber plantings. Powdery mildew and gummy stem blight are starting to show up in hard squashes.”
CucCAP researchers identify new loci for resistance to powdery mildew in watermelon
The Kousik Lab published “Elucidation of resistance signaling and identification of powdery mildew resistant mapping loci (ClaPMR2) during watermelon-Podosphaera xanthii interaction using RNA-Seq and whole-genome resequencing approach”.
Ontario Vegetable Crop Reports for Sept. 3, 2020
Symptoms of Gummy Stem Blight in winter squash include hot spots of stems with oozing lesions, and distinctive patterns on the skin of butternut squash.
August 2020 Michigan Vegetable Updates | MSU Extension
Michigan Cooperative Extension agents from East, Southeast, West, and Southwest Michigan published crop updates on cucumber, melon, watermelon, pumpkins, and winter squashes. Reports of pests include Downy mildew, Powdery mildew, and Squash bug.
May 2020 Powdery Mildew and Whiteflys on Southeastern Cucurbits | VSCNews
Presence of Powdery Mildew a Concern for Southeast Vegetable Growers andHigh Whitefly Pressure Reported in Florida Vegetables.
