Vegetable Disease Control Laboratory of Amanda J. Gevens
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
In This Issue: Temperature, precipitation, and air quality impacts on vegetable production | Disease forecasting updates for potato early blight and late blight | Cucurbit downy mildew updates | Cabbage maggot, seedcorn maggot, and Colorado potato beetle risks and management
In this issue: Potato Leafhopper updates and management | Aphids – updates on suction traps and implications | Disease forecasting updates for potato early blight and late blight | Cucurbit downy mildew updates
In this issue: Updates on potato fertility research and irrigation management in potato | Seedcorn maggot management, Colorado Potato Beetle management, vegetable leafminers | Disease forecasting updates for potato early blight and late blight | Cucurbit downy mildew updates
In this issue: Disease forecasting updates for potato early blight and late blight | Damping-off diseases of vegetables | Cucurbit downy mildew updates
In this issue: Cabbage Maggot and its management | Early blight and late blight disease risk summary for early season in central WI | Potato Scouting Class – May 21 UW Hancock ARS (1-4PM)
In this issue: Lorox DF Special Local Need label approved for WI carrot production | Nitrate-N in irrigation water | Timing of reduced-risk insecticides, Colorado Potato Beetle Management | Considerations for early blight management
In This Issue: Seedcorn maggot and Asparagus beetle descriptions and management | Round up of pest, disease, and agronomic tools to support decision-making | Deep frost this winter limits potato volunteers and late blight risk in 2025
This winter of 2024-2025 was markedly different than the last in terms of air and soil temperature and risk of potato volunteer survival. As per the University of Wisconsin Climatology Office, the winter saw minimal snowpack and sustained subfreezing conditions through early to mid-February, and frost extended deep into the ground until the mid-February snowstorms added insulation. These conditions further slowed frost progression despite subzero temperatures in some areas.