Fruit Pest Updates

  • 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…

  • June 14, 2024

    By Becky Wiepz and Dan Kielar High winds and rain in the forecast will continue to make spraying difficult in all crops as pressure remains high for both pests and diseases. This week we saw a spike in Leafrollers and Leafhoppers in both apples and cherries. If this pest is in your orchards check your…

  • June 7, 2024

    By Becky Wiepz and Dan Kielar With continuing rain events in the forecast every few days it is critical to get fungicide coverage on when possible. Rotating modes of action in all crops is essential for minimizing resistance development, especially in high pressure years like this, so be sure to check the FRAC numbers of…


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.