Leaves showed symptoms typical of CDM: angular, chlorotic or yellow lesions on the upper surface of the leaves with gray to black spores on the underside of the leaf. Continue Reading
Downy mildew on cucumber has been verified in Berrien County, which is located in southwest Michigan.
Our molecular analysis of the spore trap samples from Berrien County has recently confirmed cucumber downy mildew spores in the air for June 8, 10 and 13, 2020. For the Muskegon spore trap, there was a positive for cucumber downy mildew spores for June 8.
Cucumber downy mildew, caused by the oomycete pathogen Pseudoperonospora cubensis, has been found in a commercial cucumber field in Johnston County. The first report in North Carolina was made on June 8 of 2020 on a related post with management information. Approximately 25% of the field was infected at 40% disease severity. The recent rains […]
The Cucurbit downy mildew forecast is hosted by the NC State University departments of Plant Pathology & Marine, Earth, and Atmospheric Sciences. The website provides a map of recent outbreaks and lists outbreaks. Epidemic Status Map for CDM (Pseudoperonospora cubensis) on – 19 June: View the map. Epidemic Update – 10 June: First report from NC. […]
Evaluations include control of Downy mildew on cucumber, Downy mildew on squash and Phytophthora fruit rot on squash
CucCAP plant breeder, Todd Wehner talks about breeding cucumber and watermelon varieties for disease resistance.
The Cucurbit Downy Mildew Forecast began on April 29 for the 2019 growing season. Cucurbit downy mildew was reported in Hillsborough, Collier, Miami-Dade, and Hendry Counties in Florida on Acorn squash, Yellow Summer squash, Zucchini, Cantaloupe, Watermelon, Cucumber, and Butternut squash from February 4 to April 18, 2019. View the Latest Forecast from the CUCURBIT DOWNY MILDEW ipmPIPE. Continue Reading