Plant & Pest Diagnostics

• 

  Leaf scorch or oak wilt: What’s plaguing my tree?

  Published on September 26, 2022
  Browning of oak leaves may be caused by environmental stress rather than oak wilt.

• 

  2022 status of herbicide-resistant weeds in Michigan

  Published on September 10, 2022
  Each year new herbicide resistance cases are identified by MSU Plant & Pest Diagnostics

• 

  Winter injury on shrubs following combined environmental stresses

  Published on June 24, 2022
  MSU Plant & Pest Diagnostics and MSU Extension have seen an uptick in the number of winter injury cases in spring 2022.

• 

  Broadleaf helleborine: A weedy orchid invading lawns and flowerbeds

  Published on June 24, 2022
  Updated methods for combating broadleaf helleborine.

• 

  Blueberry pest? Don’t guess—test: Mummy berry

  Published on May 13, 2022
  Spring is a great time to be scouting for mummy berry in your blueberry fields.