Montana State University

Eva Grimme, Ph.D.

Plant Disease Diagnostician
Department of Plant Sciences and Plant Pathology
121 Plant BioScience Facility
Montana State University
Bozeman, MT 59717-3150

Tel: (406) 994-5150
Fax: (406) 994-7600
eva.grimme@montana.edu

MSU Ag Alerts

Search Past Alerts

**

Subscribe to Ag Alerts

*Invalid.

Author Login

Recent Alerts

Respiratory Protection of Increasing Concern for MT Applicators (General)
Description: The use of highly toxic pesticides that require respiratory protection were on the decline for over two decades. Recently, the use of one highly toxic active ingredient is on the rise due to glyphosate resistant kochia in Montana. This active ingredient is known as paraquat. Paraquat is in such formulations as Devour®, Firestorm®, Helmquat 3SL®, Gramoxone SL®, Cyclone SL 2.0®, Bonedry®, Willowood Paraquat 3SL®, Paraquat Concentrate® and Parazone 3SL Herbicide®. Paraquat is a photosynthesis inhibitor and acts as a non-selective contact herbicide.
Alert Period: 04/27/2015 - 09/23/2015
Submitted By: Cecil Tharp
Alert Documents:
Scout for Cutworms after Planting Spring Grain Crops (Cropland Insects)
Description: After a few quiet years cutworms are again becoming more prevalent in Montana’s cropland. This alert describes how to scout for and recognize damage, and thresholds for treatment.
Alert Period: 04/26/2015 - 05/31/2015
Submitted By: Kevin Wanner
Alert Documents:
What is going on with my yellow winter wheat? (Cropland Diseases)
Description: There is a lot of yellow wheat causing concern in the state. I’ll go through a few causes, included in this alert. --Mary Burrows, Extension Plant Pathology Specialist, MSU
Alert Period: 04/23/2015 - 05/14/2015
Submitted By: mary burrows
Alert Documents:
Stripe rust in western (Flathead Co) and central (Chouteau Co) Montana (General)
Description: As promised, more information than you ever wanted to know about stripe rust identification and management. --Mary Burrows
Alert Period: 04/06/2015 - 05/04/2015
Submitted By: mary burrows
Alert Documents:
Powdery mildew widespread in winter wheat (Cropland Diseases)
Description: Powdery mildew is widespread on lower leaves of winter wheat in the state. Please see attached alert for more information and pictures, as well as the NCERA-184 fungicide efficacy table. --Mary Burrows
Alert Period: 04/02/2015 - 04/30/2015
Submitted By: mary burrows
Alert Documents:
Woolly bear caterpillars active (Cropland Insects)
Description: Large numbers of woolly bear caterpillars were spotted in a wheat field by Andy Taylor, Fort Benton. Woolly bears are an early season insect that can occasionally damage wheat when present at high numbers. Sprays used to control cutworms will also work for this pest, no economic thresholds have been developed.
Alert Period: 03/29/2015 - 05/08/2015
Submitted By: Kevin Wanner
Alert Documents:
New Special Registration for Repelling Sand Hill Cranes Approved in Montana (Pesticides)
Description: A section 24(c)special use registration was granted for the use of Avipel liquid seed treatment and Avipel dry seed treatment. These seed treatments can be used for the protection of field and sweet corn against Sand Hill Cranes until July 1st, 2019 in Montana. See attached 24(c) labels.
Alert Period: 01/24/2014 - 09/16/2015
Submitted By: Cecil Tharp
Alert Documents: