Plant Pathologists at Land Grant Universities conduct fungicide efficacy trials on cucurbits to determine spray programs to recommend. Results of these trials are published in Plant Disease Management Reports.
Reports of virus symptoms in squash were received this week. Cucurbit downy mildew disease on pickling cucumber plants in a commercial production field were verified by the MSU vegetable pathology lab. Look for weekly spore trap updates and current downy mildew news on the Hausbeck Lab Downy Mildew News website.
The first symptoms of cucurbit downy mildew disease on pickling cucumber plants in a commercial production field have been verifiedby qPCR in the Saginaw County lab on July 19, 2023. The statewide spore trapping network to detect downy mildew spores in the air has had positives in multiple counties.
CucCAP vegetable pathologist Dr. Mary Hausbeck discusses how Phytophthora capsici can be introduced to crops when irrigating vegetables with surface water during dry conditions.
Clade 2 downy mildew infects cucumbers and melons and spores from this subtype were trapped in Bay, Allegan and Saginaw counties last week.
Growers are urged to scout cucumbers and melons and check the website for updates.
The CucCAP Integrated Disease Management team reported on project progress and ongoing research in April 2023.
The CucCAP squash team reported on project progress and ongoing research in April 2023.