• Leaf distortion and gall formation caused by Asian chestnut gall wasp on chestnut. Photo by Dennis Fulbright, MSU.

    Be on the lookout for Asian chestnut gall wasp

    Published on June 26, 2018

    Asian chestnut gall wasp is present in southwest Michigan. Scout carefully and continue to comply with the state quarantine. Importing plant material from states with known infestations is prohibited.

  • Young chestnut completely defoliated by European rose chafer.

    Michigan chestnut update – June 26, 2018

    Published on June 26, 2018

    Pollen shed is starting in southern and central Michigan. European rose chafer numbers are high and Asian chestnut gall wasp emergence will begin soon.

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