Fruit Pest Updates

  • August 15, 2024

    By Becky Wiepz and Dan Kielar Sampling for foliar nutrient tests should be done soon for the most accurate results. 50 leaves from the middle of this year’s growth is the recommended sample size. Date 8/14 2020 2021 2022 2023 2024 20-year avg. Base 50 1584 1636 1480 1575.5 1625.5 1588 GDD50 continues to be…

  • July 25, 2024

    By Becky Wiepz and Dan Kielar Pest and disease development continues to be ahead of schedule for a typical season and Spotted Wing Drosophila pressure is high. Small fruits and cherries are vulnerable once they start to change color and should be protected with insecticide and harvested quickly to limit the chance of infection. Date…

  • July 11, 2024

    By Becky Wiepz and Dan Kielar While it’s still hot and humid, we seem to finally be getting a minor break in the rain. This is the window to get ahead of diseases and pests in all crops. Spotted Wing Drosophila populations are very high throughout the region. Almost all small fruits and cherries are…

  • June 27, 2024

    By Becky Wiepz and Dan Kielar Continuing rain and heat means that fungal pressure will be high, especially in blocks where initial infection was high and inoculum has been continuously present. Scale pests, both San Jose and Oyster Shell, are in some orchards. According the the NEWA model, orchards throughout Door and Kewaunee counties have…

  • June 20, 2024

    By Becky Wiepz and Dan Kielar Insect populations continue to be high while current temperatures are pushing crop development and appear to be heading to a slightly early cherry harvest throughout the county. Scale pests, both San Jose and Oyster Shell, are in some orchards. According the the NEWA model, Door county Orchards have not…


To aid in fruit management decisions, you can access the 2021-2022 Midwest Fruit Management Guide

The 3 day PHI for Mustang Maxx on cherries in Wisconsin has been extended through December 31, 2023.

NEWA (Network for Environment and Weather Applications) can be reached at www.newa.cornell.edu

Click Wisconet for individual stations.