This page contains entomology resources for integrated pest management, including publications, media, and educational tools.  To learn more about the topics discussed on this page, contact MSU Extension arthropod diagnostician Dr. Laurie Kerzicnik.

If you suspect an insect infestation on your property or have an insect sample for analysis, contact your local extension agent, the Schutter Diagnostic Lab at Montana State University, or the Montana Department of Agriculture.  Stay up-to-date on the latest Montana insect news by subscribing to Urban IPM Alerts.

Fact Sheets

Below is an alphabetical list of the urban entomology fact sheets that are available on this website, or through the MSU Extension Store.  New fact sheets are published regularly.

 

Thumbnail-sized photo of a black and yellow flying insect
MSU Extension Fact Sheet, July 2021

Several questions are coming in about the Asian giant hornet (a.k.a. “murder hornet"). To date, it has not been detected in Montana.  Follow the title link for details.

Thumbnail-sized photo of two gray beetles on a tree leaf
MSU Extension Fact Sheet, July 2021

Blister beetles have been aggregating and causing defoliation on trees and shrubs in yards and gardens.  Follow the title link for details.

Thumbnail-sized image of a brown bug
MSU Extension Fact Sheet, May 2021

The brown marmorated stink bug (BMSB), Halyomorpha halys, was confirmed for the first time in Montana on January 26, 2021 from a household near downtown Billings.  Follow the title link for details.

Thumbnail-sized photo of a green insect
MSU Extension Fact Sheet, 2020

information on emerald ash borer biology and damage symptoms, what you can do right now, management of EAB ash issues, and EAB look-alike insects in Montana.  Follow the title link for details.

Thumbnail-sized image of a brown bug
MSU Extension Fact Sheet, 2021

Grasshoppers are becoming an issue around the state.  Once grasshoppers are adults and have entered the yard and garden, management is extremely challenging.  Follow the title link for details.

thumbnail-sized photo of a brown spider
MSU Extension Fact Sheet, 2021

During late summer and early fall, it is normal for spiders to enter buildings and homes. This includes hobo spiders which have long been prevalent in Montana.  Follow the title link for details.

Thumbnail-sized photo of a black and yellow flying insect
MSU Extension Fact Sheet, 2021

We have several social wasps in Montana. Except for the Western yellowjacket, social wasps are typically not aggressive unless their nest is disturbed. Most are beneficial and feed on a lot of our garden pests.  Follow the title link for details.

Thumbnail-sized image of 3 cucumber leaves on a black background
MSU Extension Fact Sheet, 2021

Thrips are small, yellowish insects that reside on the undersides of the leaves, and the pest thrips that we have puncture the cells on the leaf surface.  Follow the title link for details.

More from MSU Extension

Explore the family of MSU Extension Plant Sciences and Plant Pathology related programs.

Integrated pest management focused on educating professionals in the fields of arboriculture, landscape, nursery and lawn care.

Diagnosis of plant diseases, insect damage, and environmental plant problems, as well as visual assessment of herbicide injury to plants.

Working to reduce health and environmental risks from pest management, as well as improve practices, and increase IPM adoption.

Educational training for the proper use of pesticides to protect both public health and the environment.

 

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