Nursery & Christmas Trees

Michigan’s climate, soils, and centralized location combine to make Michigan a national leader in the production of landscape nursery stock and Christmas trees. Michigan State University Extension’s programing for the nursery and Christmas tree industries involves field Extension educators, campus based Extension specialists and researchers who provide timely and relevant educational programming. Our goal is deliver the latest science-based information to keep Michigan producers competitive and profitable in today’s economy.

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• Accessing growing degree days with Enviro-weather

  May 23, 2013 | Beth Bishop | Understanding and using accumulated growing degree days can help you know when to expect pests. This is one of the services Enviro-weather offers Michigan growers.

• HOT TOPICAdults of Douglas fir needle midge have begun emerging

  May 22, 2013 | Jill O’Donnell | Douglas fir needle midge can cause unacceptable needle loss. Larvae cause galls to form on current-year needles. Severe infestations can cause unacceptable needle loss.

• Nursery weed control results for Michigan growers

  May 17, 2013 | Tom Dudek | Research conducted in Michigan nurseries by Ohio State University has led to the approval of two new herbicides Michigan growers can now use in their weed control program, as well as a label expansion for two other products.

• HOT TOPICFirst generation pine needle scale crawlers should be hatching

  May 16, 2013 | Jill O’Donnell | First generation of pine needle scale hatch and the tiny crawlers emerge when lilac blooms in the spring.

• HOT TOPICSpider mites and Admes mites are active in conifers

  May 16, 2013 | Jill O’Donnell | Spider mite and Admes mite populations are starting to build. Make sure you are scouting spruce and fir for this tiny pest that can cause big problems.

• HOT TOPIC2013 Likely to be a big year for cones in Fraser fir plantations

  May 9, 2013 | Bert Cregg | Warm, dry weather in 2012 sets the stage for heavy coning for Christmas tree growers in 2013.

• HOT TOPICSpruce gall midge adults emerging and laying eggs now

  May 9, 2013 | Jill O’Donnell | Damage from spruce gall midge can kill individual shoots and repeated attacks can disfigure spruce trees, making them unsalable.

• HOT TOPICFirst gypsy moth spray window opening

  May 9, 2013 | Jill O’Donnell | Gypsy moth is hatching in the southern Lower Peninsula. The first spray windows are opening for nursery and Christmas trees growers.

• HOT TOPICTarget stem mothers to control balsam twig aphids in Christmas trees

  May 2, 2013 | Jill O’Donnell | Targeting the balsam twig aphid stem mothers is the key to preventing curling and distortion of new growth.

• Improving center pivot irrigation system uniformity

  April 30, 2013 | Lyndon Kelley | Checking irrigation system uniformity is the first step in improving water use efficiency and lowering energy use.

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