Vegetable Crop Update – Jun 21, 2026
In this issue: Potato early and late blight disease risk model updates | Onion disease updates | Armyworm, Cutworm, and Colorado Potato Beetle updates and management
Vegetable Disease Control Laboratory of Amanda J. Gevens
In this issue: Potato early and late blight disease risk model updates | Onion disease updates | Armyworm, Cutworm, and Colorado Potato Beetle updates and management
In this issue: Potato early and late blight disease risk model updates | Cabbage black rot – be on the watch | Wisconet: we are ahead on growing degree days in WI | Squash vine borer updates and management | Colorado potato beetle updates and management
In this issue: Potato productivity and weather updates | Potato early and late blight disease risk model updates | Cucurbit downy mildew spores found in MI | Onion thrips updates and management | Colorado potato beetle updates and management
In this issue: Potato early and late blight disease modeling and risk updates | Rhizoctonia in vegetables – updates and recommendations for management in tomato | Seedcorn maggot updates and management | Colorado potato beetle updates and management
In this issue: Vegetable Insect Update – Russell L. Groves, Professor and Associate Department Chairperson, UW-Madison, Department of Entomology, 608-262-3229 (office), (608) 698-2434 (cell), e-mail: rgroves@wisc.edu, Vegetable Entomology Webpage: https://vegento.russell.wisc.edu/ Imported cabbageworm – Pieris rapae https://vegento.russell.wisc.edu/pests/cabbage-maggot/ Also known as cabbage whites or small whites, cabbage loopers and diamondback moths are the three most significant caterpillar …
In this issue: Cabbage Maggot Updates and Management | Colorado Potato Beetle Updates and Management | Vegetable Leafminers Updates and Management | Potato Disease Model Updates (Late blight and Early blight)
In This Issue: Weather and vegetable production updates | Colorado Potato Beetle update and management, PVY update and management | Disease forecasting updates for potato early blight and late blight | Cucurbit downy mildew updates | Sweet corn tar spot updates and management
In This Issue: Diamondback moth, Japanese beetle, Asiatic garden beetle, Colorado potato beetle updates and management | Disease forecasting updates for potato early blight and late blight | Cucurbit downy mildew updates | Blackleg and aerial stem rot in potato – updates and management
In This Issue: Impacts of current weather on potato productivity | Water quality program – irrigation water testing for nitrogen | Disease forecasting updates for potato early blight and late blight | Cucurbit downy mildew updates | Squash vine borer, Potato leafhopper, Cucumber beetles, Aster leafhopper, Colorado Potato beetles and their management
In This Issue: Disease forecasting updates for potato early blight and late blight | Cucurbit downy mildew updates | White mold on vegetables | Seedcorn maggot and Colorado potato beetle risks and management