Welcome to the Gevens lab!

My research program investigates the ecology of fungus and fungus-like plant pathogens for enhanced and integrated disease management to support commercial agriculture in Wisconsin. We have three main areas of focus: management of Phytophthora species pathogenic on potato and vegetable crops in field and storage, investigating species distribution and occurrence of pathogenic Alternaria affecting potato, and development of integrated disease management programming in potato systems to reduce reliance upon soil fumigation in managing key soilborne diseases. As the University of Wisconsin Extension Potato and Vegetable Pathologist, my program supports vegetable growers by providing research-based recommendations for controlling diseases during production and in storage. My research program directly feeds into my extension work.

Vegetable Crop Update Newsletter

  • High risk of potato volunteers due to warm overwinter soil temperatures

    Due to a combination of a warm 2023-2024 winter season, and a heavy snowpack during the few weeks when air temperatures did drop into the single digits, soil temperatures in central Wisconsin may not have …

  • Update 19 – Oct 1, 2023

    In This Issue: Potato and tomato early blight and late blight disease updates Cucurbit downy mildew updates   Amanda Gevens, Chair, Professor & Extension Vegetable Pathologist, UW-Madison, Dept. of Plant Pathology, 608-575-3029, Email: gevens@wisc.edu Please …

  • Update 18 – Sep 17, 2023

    In This Issue: Potato and tomato early blight and late blight disease updates Cucurbit downy mildew updates   Yi Wang, Associate Professor & Extension Potato and Vegetable Production Specialist, UW-Madison, Dept. of Plant and Agroecosystem …

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Site Resources

Vegetable Crop Updates

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.

Vegetable Disease Resources

Learn more about common vegetable diseases, disease risk prediction tools, and other online and print resources.

Interactive Disease Severity Charts

We operate a network of four weather stations to give you the most relevant and accurate tools for early and late blight prevention in Wisconsin using weather-based risk models.

Vegetable Disease Forecasting Network

This map tool helps you visualize disease and insect pressure across Wisconsin based on degree-day models and NOAA meteorological data.

Field Trials

Here you can find reports on our annual fungicide and disease management evaluations.