University of Wisconsin–Madison

Year: 2022

Update 23 – Sep 18, 2022

Save the date for the 2023 Wisconsin Agribusiness Classic (January 11th and 12th).  The Wisconsin Agribusiness Classic is Wisconsin’s premier agribusiness industry event drawing interest and participation from all confluences of the industry from throughout the Midwestern states.  The program is held at the Alliant Energy Center each January and boasts an attendance of over …

Update on late blight pathogen genotype from Michigan

Hello, I forward, here, a message from Dr. Jaime Willbur, Potato and Sugar Beet Extension Pathologist with Michigan State Univ., regarding the late blight situation in Michigan.  The genotype or clonal lineage of the late blight pathogen is US-23.  This has been the predominant type in North America in recent years.  While some metalaxyl/mefenoxam resistance …

Update 22 – Sep 11, 2022

Amanda Gevens, Chair, Professor & Extension Vegetable Pathologist, UW-Madison, Dept. of Plant Pathology, 608-575-3029, Email: gevens@wisc.edu, Lab Website: https://vegpath.plantpath.wisc.edu/ Current P-Day (Early Blight) and Disease Severity Value (Late Blight) Accumulations. Thanks to Ben Bradford, UW-Madison Entomology; Stephen Jordan, UW-Madison Plant Pathology; and our grower collaborator weather station hosts for supporting this disease management effort in …

Potato late blight confirmed in Michigan

Jaime Willbur, Assistant Professor, Potato & Sugar Beet Pathology Program, Department of Plant, Soil, and Microbial Sciences, Michigan State University We have confirmed two reports of potato late blight in two separate field areas of Montcalm County, Michigan detected September 6 and September 7. Active sporulation was observed in both areas and infected fields have …

Update 21 – September 5, 2022

In This Issue: • Metabolic herbicide resistance • Potato disease risk and management recommendations for early blight and late blight • Cucurbit downy mildew • Tar spot on sweet corn

Update 19 – Aug 21, 2022

In This Issue: • Potato disease risk and management recommendations for early blight and late blight • Cucurbit downy mildew

Update 17 – Aug 13, 2022

In This Issue: • Potato production updates • Cole crop caterpillar pests • Caterpillar pests on vegetables • Potato disease risk values and management • Cucurbit downy mildew • Basil downy mildew

Update 16 – Aug 6, 2022

In This Issue: • Two-spotted spider mites on vegetables • Cutworms and armyworms on vegetables • European Corn Borer risk and management • Potato disease risk values and management • Cucurbit downy mildew • Vegetable disease diagnostic updates

Update 15 – July 30, 2022

In This Issue: Potato production updates, potato disease risk values and management, Cucurbit downy mildew, Cucurbit powdery mildew

Update 13 – July 23, 2022

In This Issue: Potato production updates amidst heat and drought. Understanding and managing Potato Virus Y. Potato disease risk values and management. Cucurbit downy mildew. UW Rhinelander Field Day Agenda.