College of Agriculture & Natural Resources

• East Michigan fruit update – April 9, 2019

  Published on April 9, 2019
  There’s been good amount of growth of our fruit crops in the last few days, with a few crops showing the first signs of early green tip. The sod in orchards is starting to green up.

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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.

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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.

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  Irrigation management: Measuring soil moisture and application uniformity

  Published on June 23, 2016
  Measure soil moisture and irrigation equipment output to ensure timely application of the right amount of water uniformly across your field.

• East Michigan fruit update – May 15, 2018

  Published on May 15, 2018
  Apples are in bloom across the region. Apple growers across the southern two triers of counties have had a very long wetting event, making for tough conditions for apple scab and fire blight management.

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  Southeast Michigan fruit update – June 2, 2025

  Published on June 5, 2025
  Cover sprays and upcoming rain are taking place in southeast Michigan.

• Southwest Michigan apple maturity report – Sept. 6, 2017

  Published on September 6, 2017
  Gala and Honeycrisp picking is underway. Light crop in some areas is speeding fruit harvesting.

• An early-season copper application will help avoid feeling “the blues” about diseases

  Published on March 19, 2012
  Learn the benefits and cautions of using copper for disease control on apples early in the season.

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  Southeast Michigan fruit update – July 22, 2025

  Published on July 22, 2025
  First plums are being harvested while berries and early peaches continue. Apple harvest prediction dates available.

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  Esfenvalerate is losing its efficacy against oriental fruit moth in Michigan

  Published on February 2, 2018
  Research conducted in 2017 provides new information on the use of esfenvalerate to manage oriental fruit moth.

• West Michigan tree fruit update – May 9, 2017

  Published on May 9, 2017
  Cold weather brings slow tree development.

• Grand Rapids, Mich., area tree fruit regional report – May 14, 2013

  Published on May 14, 2013
  Freezing temperatures early in the week caused little overall damage to tree fruits in west Michigan.

• Southeast Michigan apple maturity report – Sept. 6, 2017

  Published on September 6, 2017
  McIntosh and Gala harvest continues with McIntosh maturity ahead of Gala this season. Growers are doing the first light picking of Honeycrisp. Early Fuji are over mature.

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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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  Michigan Pesticide Applicator Core Review Sessions, RUP credits and MDARD testing for winter 2025 through spring 2026

  Published on October 7, 2025
  Essential information and frequently asked questions regarding the certification process, recertification options and the upcoming Michigan Pesticide Applicator Core Review Sessions with MDARD testing.

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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.

• West Michigan tree fruit update – June 13, 2017

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

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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.

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  Northwest Michigan apple maturity report — Sept. 13, 2017

  Published on September 13, 2017
  Northwest Michigan apples are approaching maturity, but harvest is still not in full swing. Fruit quality looks excellent.