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Vegetable Disease Control Laboratory of Amanda J. Gevens
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Newsletter

Vegetable Crop Update – May 11, 2025

Posted on May 11, 2025

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)

Posted in NewsletterTagged Amanda Gevens, cabbage maggot, early blight, late blight, Russ Groves

Vegetable Crop Update – May 4, 2025

Posted on May 4, 2025

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

Posted in NewsletterTagged Amanda Gevens, colorado potato beetle, early blight, Jed Colquhoun, nitrate, Russ Groves, Yi Wang

Vegetable Crop Update – Apr 26, 2025

Posted on April 26, 2025

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

Posted in NewsletterTagged asparagus beetle, Russ Groves, seedcorn maggot

Decision support tool roundup – Spring 2025

Posted on April 22, 2025

There are many online tools available to growers to aid in decision-making when it comes to weather-based risks. Here we feature a few of our favorites.

Posted in Newsletter, ResourcesTagged Ben Bradford, decision support tools

Vegetable Crop Update – Apr 22, 2025

Posted on April 22, 2025

In this issue: Chlorothalonil registration updates | Links to the Commercial Vegetable Production in Wisconsin A3422 Guide, the WI Potato and Vegetable Growers Association & UWEX Grower Education Conference Proceedings, Wisconet, and the UW Vegetable Disease and Insect Forecasting Network tool

Posted in NewsletterTagged Amanda Gevens, chlorothalonil

Update 17 – Sep 9, 2024

Posted on September 9, 2024

In This Issue: Potato late blight and early blight updates. Cucurbit downy mildew updates.

Posted in NewsletterTagged cucurbit downy mildew, early blight, late blight

Update 16 – Sep 1, 2024

Posted on September 1, 2024

In This Issue: Potato production updates. Potato late blight and early blight updates. Cucurbit downy mildew updates.

Posted in NewsletterTagged cucurbit downy mildew, early blight, late blight, nitrogen, potato production

Cucumber Downy Mildew Confirmed in Adams Co. WI

Posted on August 29, 2024

Downy mildew on cucumber foliage was confirmed today from a commercial pickling cucumber field in Adams County. This is the first confirmed diagnosis of this disease in Wisconsin in 2024.

Posted in Newsletter

Late Blight Confirmed on Tomato in Dane Co. WI

Posted on August 28, 2024

Tomato late blight was confirmed today on foliar and fruit tissues from a plant sample submitted from the western edge of Dane County.

Posted in NewsletterTagged late blight, tomato late blight

Update 15 – August 15, 2024

Posted on August 26, 2024

In This Issue: More Aphids! Identifying and managing vegetable aphids. Potato late blight and early blight updates. Cucurbit downy mildew updates and disease look-alikes in WI.

Posted in NewsletterTagged aphids, colonizing aphids, corn earworm, corn leaf aphid, cucurbit downy mildew, early blight, green peach aphid, late blight
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Contact Us

  • Dr. Amanda J. Gevens
    689 Russell Laboratories
    1630 Linden Drive
    Department of Plant Pathology
    University of Wisconsin-Madison
    Madison, WI 53706 -1598
  • Email: gevens@wisc.edu
  • Phone: 608-890-3072
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