Montana State University
MSU Extension > Urban IPM > Certification


Plant Sciences and Plant Pathology 121 Plant BioScience Building Bozeman, MT 59717-3150

Tel: (406) 994-5150


Eva Grimme

College Department

MSU Urban IPM Program - Urban IPM News & Notes

Gall wasps and woodpecker damage on bur oak

Submitted on: 05/20/2014

We have recently received some bur oak samples in the Schutter Diagnostic Lab that have sustained serious woodpecker injury. The tops of the trees have been stripped of their bark, and many wasp larvae are situated right underneath the bark. For more information see the attached file.

Chilling Injury on Ornamentals

Submitted on: 05/09/2014

The attached article has very useful information and photos of cold injury to new leaves on ornamental plants.  Plants do not have to be subjected to freezing temperatures; but damage can result from rapid temperature changes for critial time periods to newly emerging leaves.  It is not unusual for us to receive samples in June for damage that actually occurred in May.  So be aware and watch plants for early symptoms.  Linnea Skoglund

Reports of Woolly Apple Aphids

Submitted on: 04/24/2014

The Schutter Diagnostic Lab has received two samples (Missoula Co and Lincoln Co in Libby) in the last couple weeks of pear and apple branches with some swellings or pseudogalls around the buds and bases of the twigs. These swellings appear to match those made by the woolly apple aphid. See the attached fact sheet for detailed information about this important pest. Contact Laurie Kerzicnik, 406-994-5704,, with questions.

Winter Injury of Evergreens

Submitted on: 04/09/2014

Many samples, photos and queries about damage to evergreens (mostly spruce and pine) are coming to the Schutter Diagnotic Lab. Most of these are cases of winter injury. Attached is a newsletter from USU. This edition includes information on:

Conifer Winter Injury
Spruce Ips beetles (bark beetles)
White pine weevil
Fire blight
Powdery mildew
Lilac ash-borer
Honeylocust plant bug

You can also find this issue online:

Linnea Skoglund

Pain in the Ash?

Submitted on: 03/24/2014

"Pain in the Ash"

Sunday, March 30, 6 pm on PBS

MSU entomologist Mike Ivie will discuss the Emerald Ash Borer and its recent discovery in Colorado. What needs to be done to protect Montana's ash trees? What is the prognosis for early control? Tune in to get current and accurate information about EAB.

Brown Marmorated Stink Bug Webinar

Submitted on: 03/24/2014

Worried that Brown Marmorated Stink Bug (BMSB) will become a problem on plants in Montana? The Schutter Diagnostic Lab in collaboration with the Great Plains Diagnostic Network hosted a webinar
on this new invasive pest that is not yet reported in Montana. A recording is available at

TITLE: An Introduction to the Brown Marmorated Stink Bug

PRESENTER: James Jasinski, Associate
Professor, Extension Educator, Ohio State University, Urbana, OH

Linnea Skoglund (

Greenhouse Pest Workshop

Submitted on: 01/30/2014

Greenhouse Pesticide and Pests Management Workshop

Thursday March 6, 2014

8:30 to noon

134 Animal Sciences Building


Cost $10

Register by March 3rd. See attachment for information.

Pesticide Performance and Water Quality

Submitted on: 01/30/2014

Adam Sigler, Water Quality Extension Associate Specialist, and Cecil Tharp, Pesticide Education Specialist, have compiled resources within a new MontGuide titled “Pesticide Performance and Water Quality”. This publication provides helpful information on pH, dissolved minerals, suspended solids, water testing tools, and tables including common pesticides. You can view this on the MSU Pesticide Education website at
or order hard copies from MSU Distribution at (406)994-3273.

Donate to Diagnostic Lab

Submitted on: 01/30/2014

It is now possible to make a donation to the Schutter Diagnostic Lab. To support the continuation of diagnostic and educational services, please consider making a donation online or by phone (800-457-1696). All gifts are processed by the Montana State University Alumni Foundation, a nonprofit 501(c)(3) organization. Please reference Solicitation Code AG14CAGPS. Thank you.



Insect Diagnostician Joins Schutter Diagnostic Lab

Submitted on: 11/19/2013

Laurie Kerzicnik recently joined the Schutter Diagnostic Lab as the insect diagnostic and IPM specialist. She has the following to say about herself. She can be reached at the Schutter Lab or at 56 Marsh Lab, 406-994-5704.

"I just joined the Plant Sciences and Plant Pathology Department at Montana State University as the new Insect Diagnostician and Assistant IPM Specialist. My background is with IPM and spiders as pest control agents in agroecosystems. I received my Master’s and PhD in Entomology from Colorado State University. In addition to my educational background, I did a lot of entomology and arachnology outreach to K-12 schools, the community, and to growers. I traveled around to schools with tarantulas, spiders, mantids, scorpions, and cockroaches for hands-on learning. I love extension and serving as a link between science education and the community. I look forward to working with faculty, extension agents, growers, and the community."


Free IPM Form

Submitted on: 11/12/2013

A free forum on new technologies in pesticide education, weeds and insect management will be offered Thursday, Dec. 5, in Bozeman.

The event will run from 10 a.m. to 3 p.m. at the Comfort Inn. Those who wish to attend should pre-register by contacting Montana State University Pesticide Education Specialist Cecil Tharp at or (406) 994-5067.

The program will be worth four private applicator credits, as well as three commercial/government credits in the categories of aerial, dealer, ag plant pest, forest pest, ornamental and turf, right of way, and regulatory weed. There will also be credits for the Certified Urban IPM Practitioner program.

Emerald Ash Borer in Colorado (1 October 2013)

Submitted on: 10/01/2013

The emerald ash borer (EAB) has been confirmed in Boulder, Colorado. This is the western-most occurrence for this invasive pest. It has not been found in any state bordering on Montana. The Montana Department of Agriculture maintains a monitoring program through the use of traps set throughout the state. You may direct your questions to Cam Lay (406-444-3790) and Ian Foley (406-444-9454) until the end of October when the Schutter Diagnostic Lab insect diagnostician will be available (405-994-5150).

Aminopyralid banned in New York (25 July 2013)

Submitted on: 07/25/2013

Dow herbicide that contaminated Green Mountain Compost now effectively banned in the Northeast USA

Zheljana Peric / WeedsNews4556

/ July 25, 2013 / 9:45:13 PM EST / 0 Comments

[ 10 June 2013] -- A herbicide that tainted Green Mountain Compost (GMC) last summer can no longer legally be used on Vermont pastures. But compost companies still worry the chemical will find its way into their products. The GMC compost, made at the Chittenden Solid Waste District facility in Williston, damaged or killed some broadleaf garden plants, such as tomatoes, costing the district at least $800,000. The cause of the contamination was found to be aminopyralid. That agent is found in Dow weed-control products Milestone and Forefront and it apparently entered Green Mountain Compost in manure from horses that consumed feed treated with aminopyralid products. Milestone is used to kill up to 85 plant varieties. The discovery was the result of many months of forensic work by CSWD, the state Agency of Agriculture, the Environmental Protection Agency and pesticide giant Dow Agrosciences. The identification of aminopyralid as the cause of the compost contamination led to Dow voluntarily changing its labeling of the chemical, ruling out its use on pastures in New England or for any purpose in New York. Any violation, or off-label use, is a federal offense. The new restrictions are aimed at keeping aminopyralid out of horse feed, specifically hay. Horse manure is often a key ingredient in local compost.

2013 Northern Rockies Tree School (revised)

Submitted on: 04/08/2013

"Risky Business", the Northern Rockies Tree School, will take place Sept. 19th & 20th in Dillon, MT. You will earn CEU's for ISA and MSU Urban IPM Certifications. Cost is only $90 (before Sept. 6th) and includes meals and breaks! The pre-conference workshop is cancelled.

2013 Northern Rockies Tree School

Submitted on: 04/05/2013

"Risky Business", the Northern Rockies Tree School, will take place Sept. 19th & 20th in Dillon, MT.  You will earn CEU's for ISA and MSU Urban IPM Certifications.  Cost is only $90 (before Sept. 6th) and includes meals and breaks!  There is a pre-conference workshop on Urban Insects and Diseases on Sept. 18th.

MUCFA Meeting April 18-19

Submitted on: 04/05/2013

Attached is the agenda for the next Montana Urban & Community Forestry Association meeting on April 18-19, 2013 in Billings. This will be a very informative and educational meeting.  Be ready for some outdoor time practicing Emerald Ash Borer monitoring methods.  

Try to stay downtown at the Crown Plaza. Phone: (406) 252-7400 or Bestwestern (406) 259-5511.

Contact :  Jamie Kirby  406-542-4288  

Arborists' Breakfasts

Submitted on: 03/27/2013

Join arborists in Helena and Bozeman for breakfast and a chance to come together and discuss topics.  Upcoming breakfasts:

Tree Risk Assessment BMPs
       Bozeman - April 9th
       Helena - April 10th

Webinar on Mites

Submitted on: 02/22/2013


Mites - From Bad to Beneficial - in Gardens and Greenhouses

Jody Fetzer, Hillwood Estate, Museum & Gardens; Washington D.C.

This webinar was recorded on February 20th as part of the Great Plains Diagnostic Network webinar series. Jody Fetzer, an expert acarologist, covers ID of eriophyid, spider and broad mites.  She gives tips on using predatory mites and current information about pesticides that really work – or not.  This is a great webinar for anyone dealing with plants.

To view the webinar, go to

Contact Linnea Skoglund (406-994-5150 or with questions.

Don’t Bug Me Webinar Series 2013

Submitted on: 02/20/2013

Don’t Bug Me Webinar Series 2013

First Friday of the Month Series
All it takes is a computer with internet connection.  Webinars take place at 12 o’clock mountain time and last 30 – 45 minutes.  The webinars are sponsored by eXtension and are presented by experts from several universities.

March 1 - Ants! Ants! Ant!
April 5 and May 3 and September 4 are about fire ants
June 7 – Get Rid of Those Bed Bugs
October 2 - Home Invaders
November 6 - Keeping Ants off the Thanksgiving Table

Insect IPM Workshop

Submitted on: 02/07/2013

The MSU Urban IPM Program is sponsoring a workshop, "Insect IPM in the Urban Landscape".  Registration is limited so send your's in now. 

When:   8:30 am to 4:30 pm, March 19, 2013
Where:  Holiday Inn Express, 2305 Catron St., Bozeman, MT
Cost:     $60 including lunch.  Due by March 11th.

For the registration form and more information, visit

Impatiens Downy Mildew Webinar

Submitted on: 01/15/2013

Join the Schutter Diagnostic Lab for a webinar on Downy mildew on impatiens tomorrow, January 16th, at 9:00 MT. Dr. Aaron Palmateer, University of Florida, will address the impact of downy mildew on impatiens in Florida and current results from disease management trials.  Contact Linnea Skoglund (406-994-5150 or 

The webinar can be viewed at  To log in type your name and affiliation in the guest box.  Once there click on “Audio” at the top of the screen, then “Start Audio Conference”. This will list three options, choose “Receive call from meeting” and enter your phone number.  If this does not work, there is a manual conference number 1-866-910-4857, participant code 447113.  Urban IPM Certification credit will be offered.

2013 Webinar series: Plant Pathology and Entomology

Submitted on: 12/14/2012

You are invited to join the Schutter Diagnostic Lab and Great Plains Diagnostic Network online seminar series. Topics include Impatiens Downy mildew (a new and devastating disease), Virus diseases of brambles, Durability of resistance in wheat, and others. Webinars take place each Wednesday at 9 am MT and will start January 16th. The webinars can be attended by going to: Contact Linnea Skoglund ( or 406-994-5150) with any questions.


Submitted on: 12/07/2012

Winter Watering
Tree and Shrub Protection
Common Mistakes around Sidewalks

Tree Doctor App

Submitted on: 10/12/2012

Announcing the release of the Purdue Tree Doctor App

The Purdue Tree Doctor App is available for $1.99 from the Purdue Education Store or the Apple App store This app uses over 1100 hi resolution photos of symptoms and signs to diagnose over 175 disorders (insect, disease, and other) on over 60 tree genera.  It also runs on the I-Pod touch and the I-pad.

For more details please see the news release

While this will cover plants and pests not found in Montana and will not cover some of what we do have, it might still be very useful.

Linnea Skoglund

2012 Forestry MiniCollege

Submitted on: 10/05/2012

Information and registration for the 2012 Forestry MiniCollege are now available on the MSU Extension Forestry website

The event will be held on Saturday, November 3rd, 2012 at the College of Forestry & Conservation on The University of Montana campus.

We are working to improve our ability to inform landowners and other interested forestry related groups about upcoming educational events in a timely and efficient manner.

Therefore we would like to encourage you to subscribe to our listserv,

Or you can follow us on Twitter @msuextfor.

Martin Twer
Forestry Instructor

MSU Extension Forestry
U of M College of Forestry and Conservation
32 Campus Drive, MS 0606
Missoula MT 59812-0606
phone    (406) 243-2775

cell         (406) 207-1756
fax         (406) 243-4715

The Northern Rockies Tree School

Submitted on: 09/27/2012

October 10th & 11th, 2012

Sheridan, WY 


    ...and Field Tours of Kendrick Park and Whitney Commons to discuss tree inventories, management alternatives and more.

Contact: Mark Ellison (307)777-3626 or Mark Hughes (307)777-5478

Turfgrass IPM Workshops

Submitted on: 09/11/2012

The MSU Urban IPM Program is offering a workshop on Identification of Weeds in the landscape and on small acreage.  There also will be an update of Insects and Disease on Trees in 2012. 

•4–hr. session, same each day
•October 9 - Yellowstone County Extension Office, Billings
•October 10 - Cascade County Extension Office, Great Falls
•Cost is $30
•Pre-registration is required.  Limited to 20 per class.
•Commercial pesticide applicator continuing education credits will be available. 

Turfgrass IPM Advisory (30 August 2012)

Submitted on: 08/30/2012

Attached is a copy of the Utah State University Seasonal Turfgrass Pest Update, Summer 2012.  There is a very interesting article on turf and tree competition for water and nutrients.  It is just as applicable to Montana as it was to Utah and to Minnesota, the original source.

I have not seen rust on turf this summer.  It was too hot and dry.  However, we have diagnosed many samples with white grubs and some with billbugs.

Linnea Skoglund (

Volume 2, Issue 4 (July 6, 2012)

Submitted on: 07/06/2012

Unsightly Leaf Galls: Are They as Bad for Trees as They Look?
Eriophyid Mites
Aphids on Broadleaf Trees

Volume 2, Issue 3 (May 15, 2012)

Submitted on: 05/15/2012

Clover Mites – a Nuisance in Homes
Fire Blight and Apple Scab Forecasts
Proposed Change to Urban IPM Newsletter
Weed of the Week
Schutter Diagnostic Lab Update

Volume 2, Issue 2 (May 1, 2012)

Submitted on: 05/01/2012

Herbicide Contamination of Soil and Compost
Herbicide Contamination Bioassay
Cold Temperature Injury in the Landscape

Volume 2, Issue 1 (April 16, 2012)

Submitted on: 04/16/2012

Managing Powdery Mildew on Ornamentals
Natural Herbicides (link)
Dead and Distorted Needles on Spruce
Fire Blight Forecast
Become a First Detector

Volume 1, Issue 6 (September 1, 2011)

Submitted on: 09/02/2011

What is Happening to the Maples?
Cat-faced Spiders a Common Sight in Late Summer
Imprelis Damaged Plants shouldn’t be used for Composting or Mulching

Volume 1, Issue 5 (August 15, 2011)

Submitted on: 08/15/2011

Dupont to Recall Imprelis Herbicide
Digital Resources for IPM
Photo of the Week
Training Opportunities

Volume 1, Issue 4 (August 1, 2011)

Submitted on: 07/29/2011

Summer Leaf Scorch on Deciduous Plants
Conifer Aphids Stressing Junipers
List of Recommended Trees
Diseases of Apple Trees - Black Rot


Volume 1, Issue 3 (July 15, 2011)

Submitted on: 07/15/2011

Epidemic of Shot Hole Disease
Turf Applicators Should be Cautious when Applying ‘Imprelis’
Abiotic Problems in Conifers
Residual Herbicide Can Damage Sensitive Garden Plants
Whip Cicada


Volume 1, Issue 1 (June 17, 2011)

Submitted on: 07/07/2011

Newsletter Debut
Austrian Pines are Dying
Early Detection/Rapid Response
March Flies

Volume 1, Issue 2 (July 1, 2011)

Submitted on: 07/07/2011

Late Blight of Tomato and Potato
Apple Scab
Flooding and Trees
Shoot Blights on Ornamentals
Pinewood Nematode Testing
Insect Repellents – What Works