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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.

  • Late blight confirmed in potato in Alliston, Canada on July 17, 2023

    Late blight was confirmed in potato in Alliston, Canada on July 17, 2023. This is Simcoe County of the Province of Ontario. A sample of infected leaves was sent to Dr. Jean Ristaino’s lab at…

  • Update 10 – July 23, 2023

    Update 10 – July 23, 2023

    In This Issue: Potato and tomato early blight and late blight disease updates Cucurbit downy mildew updates Two-spotted spider mites, European corn borers, and caterpillar pests of cole crops   Amanda Gevens,…

  • Update 9 – July 16, 2023

    Update 9 – July 16, 2023

    In this issue: Potato and tomato early blight and late blight disease updates, Cucurbit downy mildew updates, Cucurbit powdery mildew updates, Potato Virus Y updates and management, Two-spotted spider mites, Caterpillar pests

  • Update 8 – July 9, 2023

    Update 8 – July 9, 2023

    In This Issue: Potato and vegetable crop production status updates; pollutant, ozone, and sulfur dioxide injury on potato; Potato and tomato early blight and late blight disease updates; Cucurbit downy mildew updates;…

  • Update 7 – July 2, 2023

    Update 7 – July 2, 2023

    In this issue: Potato and tomato early blight and late blight disease updates Cucurbit downy mildew updates Striped cucumber beetle, onion thrips, Potato Virus Y UW Langlade County Extension Airport Ag Research…

  • Update 6 – June 25, 2023

    Update 6 – June 25, 2023

    In this issue: Potato production updates: effects of high heat and low moisture, potato and tomato early blight and late blight disease updates, cucurbit downy mildew updates, squash vine borer, squash bug,…

  • Update 5 – June 18, 2023

    Update 5 – June 18, 2023

    In this issue: Potato and tomato early blight and late blight disease updates, Cucurbit downy mildew updates, Potato leafhopper, true armyworm, Colorado potato beetle, flea beetles, cole crop pests

  • Update 4 – June 11, 2023

    Update 4 – June 11, 2023

    In This Issue: Potato production updates, Potato and vegetable disease model updates, Onion Botrytis, Colorado potato beetle, potato leafhopper, and seedcorn maggot updates

  • Update 3 – June 4, 2023

    Update 3 – June 4, 2023

    In this issue: Potato and vegetable disease model updates Potato early blight management options Natural control of insects, Two-spotted spider mites and mint bud mite, onion thrips, aphids, and Colorado potato beetle…

  • Update 2 – May 28, 2023

    Update 2 – May 28, 2023

    In this issue: Potato production progress updates Asparagus beetles, Colorado potato beetles, and seedcorn maggot updates Potato and vegetable disease model updates WI DATCP Special Local Need Registrations (24c) and Emergency Exemptions…

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