College of Agriculture & Natural Resources

• East Michigan fruit update – April 14, 2020

  Published on April 14, 2020
  Cold temperatures over the last week have slowed growth of flower and leaf buds in all fruit crops.

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  Southwest Michigan fruit regional report – August 2, 2016

  Published on August 2, 2016
  Veraison is starting in grapes. Many late-season pests are flying. Blueberry, peach and plum harvest continues.

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  Northwest Michigan fruit regional report – July 12, 2016

  Published on July 12, 2016
  Managing tree fruit diseases is key following stormy weather and hail last week.

• Michigan spotted wing Drosophila report for Aug. 13, 2013

  Published on August 13, 2013
  Spotted wing Drosophila catches are increasing in fields and orchards where harvest is completed and insecticide residues are minimal.

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  Southwest Michigan fruit update – July 23, 2019

  Published on July 23, 2019
  Spotted wing Drosophila numbers jumped in the last week. Almost all our traps are catching flies in the double digits. Protect berries now.

• West Michigan tree fruit update – June 13, 2017

  Published on June 13, 2017
  Hot weather requires irrigation for tree fruits.

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  Improved degree-day maps on Enviroweather

  Published on April 19, 2017
  New maps provide more accurate and extensive growing degree-day information to users making pest and crop decisions.

• Northwest Michigan fruit regional report – July 26, 2016

  Published on July 26, 2016
  Weather continues to be hot and dry across the region. Tart cherry harvest is in full swing.

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  Southwest Michigan fruit update – August 9, 2022

  Published on August 9, 2022
  Peach harvest is in full swing. Apple harvest is beginning.

• Cherry leaf spot observed on June 1

  Published on June 3, 2011
  Growers need to tighten intervals and use full cover sprays if cherry leaf spot has been observed. Scout for cherry leaf spot as soon as possible.

• Lime sulfur sprays can improve spring disease control

  Published on April 6, 2011
  Early sprays of lime sulfur reduce disease inoculum in spring

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  Biological control of brown marmorated stink bug in Michigan

  Published on July 24, 2019
  As a pest that feeds on a wide variety of fruits and vegetables, pest management of brown marmorated stink bugs likely means biological control.

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  Northwest Michigan fruit update – August 5, 2025

  Published on August 5, 2025
  Cherry harvest has wrapped up in northern Michigan. Apricots are ripe and in the market stands.

• Postharvest fungicide application for cherry leaf spot control on tart cherries

  Published on July 13, 2010
  

• Mice and vole populations are building in many orchards

  Published on February 14, 2014
  Some feeding damage by mice and voles is starting to be seen in fruit orchards.

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  Southwest Michigan Fruit update – June 10, 2025

  Published on June 11, 2025
  It’s starting to feel more like summer!

• East Michigan fruit update – Aug. 1, 2017

  Published on August 1, 2017
  Brown marmorated stink bugs are being caught in traps in apple blocks, with spotted wing Drosophila and apple maggot populations remaining high.

• Spotted wing Drosophila detections are increasing in fruit crops

  Published on June 19, 2012
  Monitor ripening fruit crops to know where and when to protect against spotted wing Drosophila, a new pest to Michigan.

• East Michigan fruit update – July 21, 2020

  Published on July 21, 2020
  Two precipitation events moved over the region in the past week, bringing some much-needed relief to drought. Summer red and black raspberry and blueberry harvest continues.

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  Using climatology to estimate first freezing temperatures of the fall season

  Published on August 30, 2019
  Statistics help narrow down the timing of first freezing temperatures across Michigan.