MSU Extension Christmas Trees

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  Suspect herbicide resistance? Submit weed seeds for screening

  Published on October 6, 2021
  Collect weed seeds September-October to submit for herbicide resistance screening.

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  Cones and acorns appear in copious quantities this fall

  Published on October 4, 2021
  Past tree stresses contribute to heavy crop of cones and nuts.

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  Addressing labor challenges together

  Published on August 17, 2021
  Help us understand the current workforce needs of agricultural operations across Michigan.

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  Four Lessons from COVID-19 for the Future of Christmas Tree Marketing

  Published on June 28, 2021
  Because of this unique Christmas tree shopping environment, we took the opportunity to delve into how U.S. consumers were confronting the holiday season with in order to glean some information about how their purchasing choices might look in the future.

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  Michigan Christmas tree pest update – June 4, 2021

  Published on June 4, 2021
  Scout trees now for insect pests.

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  Managing Diplodia tip blight

  Published on April 28, 2021
  Diplodia tip blight can kill the current year’s growth of trees of any age. Time fungicide applications to protect new growth from bud break through full candle elongation.

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  How to identify and manage common ragweed in Christmas tree production – Part 2

  Published on April 28, 2021
  Strategies to manage common ragweed in Christmas tree production.

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  How to identify and manage common ragweed in Christmas tree production – Part 1

  Published on April 28, 2021
  Identifying common ragweed early in Christmas tree production can help growers develop an effective weed control plan.

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  Lymantria dispar populations are high: What conifer growers need to know

  Published on April 16, 2021
  There were extremely high populations of Lymantria dispar, formerly gypsy moth, during 2020 and we anticipate elevated populations this year. Scout and treat spruce, fir and Douglas fir for gypsy moths.

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  Bands from Weir’s cushion rust visible on infected spruce needles

  Published on April 15, 2021
  Yellow spots or bands are visible on infected Serbian and Colorado blue spruce needles. Weir’s cushion rust can cause discoloration and pre-mature needle loss.