Christmas tree farm

Christmas Tree Pest Management Webinar Series


Christmas Tree Pest Management is a four-week webinar series that will feature scouting techniques, insect and disease management recommendations, and trouble shooting symptoms of Christmas tree problems.  

The webinar programs will be live from 12:30 to 2 p.m. EST every Thursday starting Feb. 6 through Feb. 27, 2020. Participants will have the option to tune in to the live webinar or stream the recording on-demand afterwards. There is no charge for the webinar series but those interested do need to register. The program topics and speakers are as follows:

Feb. 6: Scouting Christmas Trees: Tools for IPM
     Speakers: Chloé Gendre, Club agroenvironnemental de l'Estrie, Quebec, Canada
                      Heidi Lindberg, Michigan State University Extension

Most growers of Christmas trees have to deal with pest problems. An integrated pest management approach (IPM) can make sure that you are using pesticides at the correct time and only when necessary. Chloé Gendre will cover the various methods and tools growers can use in their pest management tool box. Heidi Lindberg will cover the resources available for scouting and pest management.

Feb. 13: Disease Management in Christmas Trees
     Speaker: Dr. Monique Sakalidis, Michigan State University

Fungi cause the majority of diseases of Christmas trees. Symptoms can include abnormal swellings on the branches, discolored needles, pustules or blisters on the foliage, curling of the growing shoots, and cankers. Dr. Sakalidis will discuss some basic biology of fungal pathogens and how to identify and manage some of the more troublesome diseases. 

Feb. 20: Insect Management in Christmas Tree Production
     Speaker: Howard Russell, Michigan State 
University Diagnostic Services

Insects can cause costly damage at various times in a tree’s growing cycle. 'Bugman' Howard Russell will review several of the more common pest growers are trying to manage and discuss strategies for effective insect pest control. 

Feb. 27: Troubling shooting: Is it a pest?
    Speaker: Dr. Bert Cregg, Michigan State University

Browning or yellowing of foliage, needle drop, and tree death are symptoms that can be caused by insect pests or diseases. But they can also be caused by environmental issues. Oftentimes damage caused by environmental factors such as temperature extremes or herbicide injury may not be apparent until long after the damaging event. Dr. Cregg will discuss steps in trouble-shooting tree problems and determining whether a problem is related to biotic or environmental factors.

Each webinar qualifies for 2 Michigan Pesticide Recertification credits in the following categories: Private Core, Commercial Core, 3A, 3B, Fumigation

Projects supported by:

  • Project GREEEN (Michigan) 
  • Michigan Christmas Tree Association
  • Michigan Seedling Growers Association

Registration for Christmas Tree Pest Management Webinar Series is open.

Registration closes at 11:59 p.m. on February 4, 2020.

There are 260 openings available.


Michigan State University is committed to providing equal opportunity for participation in all programs, services and activities. Accommodations for persons with disabilities may be requested by contacting the event contact two weeks prior to the start of the event. Requests received after this date will be honored whenever possible.

Contact Information

For more information, contact Heidi Lindberg at or 616-994-4701. For more information on the webinar content, contact Bert Cregg at or 517-353-0335.