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Get the latest information about disease management in vegetable crop production in Wisconsin. To be added to the email listserv and receive this newsletter in your inbox, please contact Amanda Gevens. A printable PDF version is available as a link at the end of each article.

  • Vegetable Crop Update – May 10, 2026

    Vegetable Crop Update – May 10, 2026

    In this issue: Amanda Gevens, Professor & Extension Vegetable Pathologist, UW–Madison, Dept. of Plant Pathology, 608-575-3029, gevens@wisc.edu Environmental Protection Agency (EPA) Draft Endangered Species Act (ESA) Fungicide Strategy – Feedback Requested by…

  • Vegetable Crop Update – May 4, 2026

    Vegetable Crop Update – May 4, 2026

    In this issue: Rhizoctonia in vegetable crop systems | Weather-based crop and disease decision-making tools summary

  • Vegetable Crop Update – Apr 26, 2026

    Vegetable Crop Update – Apr 26, 2026

    In this issue: Seedcorn Maggot Update & Management | Cabbage Maggot Update & Management | Early Season Potato Disease Concerns | Potato Scouting Class at UW-Hancock ARS on May 18 | Tutorial…

  • Vegetable Crop Update – Apr 19, 2026

    Vegetable Crop Update – Apr 19, 2026

    In this issue: Potato Cull Pile Management | Potato Volunteer Risk in 2026 | Potato Late Blight Fungicides 2026

  • Vegetable Crop Update – Mar 2, 2026

    Vegetable Crop Update – Mar 2, 2026

    In This Issue: Updates on information resources | A3422 Commercial Vegetable Production in Wisconsin 2026 | WPVGA/UWEX Grower Education Conference Online Proceedings | UWEX Central WI Processing Crops Meeting, UW-Hancock ARS on…

  • Important update on Blocker fungicide in potato

    Important update on Blocker fungicide in potato

    In mid-December 2025, AMVAC Chemical Corporation, the manufacturers of the fungicide Blocker (pentachloronitrobenzene, PCNB), decided to stop producing Blocker 4F and 10G. In effect, this concludes production of Blocker for the future.…

  • Vegetable Crop Update – Sep 28, 2025

    Vegetable Crop Update – Sep 28, 2025

    In This Issue: Late blight updates for potato/tomato | Cucurbit downy mildew updates

  • Vegetable Crop Update – Sep 21, 2025

    Vegetable Crop Update – Sep 21, 2025

    In This Issue: End of season crop production comments | Potato tuber heat necrosis and hollow heart | Late blight updates for potato/tomato | Cucurbit downy mildew updates | Pink eye of…

  • Vegetable Crop Update – Sep 14, 2025

    Vegetable Crop Update – Sep 14, 2025

    In This Issue: Disease forecasting updates for potato early blight and late blight | Cucurbit downy mildew updates | Post-harvest diseases of potato and their management

  • Vegetable Crop Update – Sep 7, 2025

    Vegetable Crop Update – Sep 7, 2025

    In This Issue: Disease forecasting updates for potato early blight and late blight | Cucurbit downy mildew updates | Black dot and silver scurf of potato

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