Michigan State University Extension offers resources to help people correctly identify pests—insects, weeds, plant diseases and other pests—and then choose an effective control when one is needed. Our science-based information uses Integrated Pest Management (IPM), which safeguards human and environmental health by using the least toxic methods first, up to and including pesticides when appropriate. Contact your local Extension office or MSU Pest Diagnostic Services for help in identifying a specific pest.
August 19, 2014 | Annemiek Schilder | Downy mildew and powdery mildew are present in grapes. The period of highest susceptibility has mostly passed, but infections may still be actively sporulating. Scout for symptoms and use a combination of protectant and systemic fungicides for control.
August 19, 2014 | Annemiek Schilder | Humid conditions are conducive to leaf rust in blueberries. Scout fields for the tell-tale orange spore pustules on the undersides of leaves. If rust is found, apply an effective fungicide to minimize the potential for premature defoliation.
August 19, 2014 | Mike Staton | Manage this year’s white mold inoculum to reduce the incidence and severity of white mold in future soybean crops.
August 18, 2014 | Julianna Wilson | No brown marmorated stink bugs were caught during the week of Aug. 8-15, 2014.
August 15, 2014 | Jill O’Donnell | Extra moisture this summer may cause springtails to be abundant in nursery beds. The majority of springtails are beneficial eating bacteria, fungi, algae and decaying vegetation.
August 13, 2014 | Gretchen Voyle | Yellow, spotted leaves are falling from walnut trees due to the annual visit of this fungal disease known as walnut anthracnose.
August 13, 2014 | Julianna Wilson | Spotted wing Drosophila numbers continue to rise across the monitoring network. Protect susceptible crops where they are detected.
August 12, 2014 | Keith Mason | Third generation grape berry moth egglaying is predicted to begin this week. Powdery mildew and downy mildew problems are increasing in some vineyards.
August 12, 2014 | Charles Gould | Research is being conducted to determine if switchgrass is a vector and host for common insect pests and crop diseases in cropping systems.
August 12, 2014 | Willie Kirk | Michigan potato growers should continue scouting for late blight on a weekly basis, and treat fields aggressively in areas where late blight has been reported.
To find an MSU Extension expert who covers your location or to find an expert in your area of interest, please visit the MSU Extension Expert Search. To reach an MSU Extension county office, call toll-free 1-888-678-3464.
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Date: Aug 28, 2014 - Dec 4, 2014
Location: NMU Learning Resource Center, Tracy Avenue, Room 109, Marquette, MI 49855
Date: Aug 28, 2014 - Dec 4, 2014
Location: Northwest Michigan Horticulture Research Center, 6686 S. Center Hwy, Traverse City, MI 49684
Date: Sep 3, 2014 - Dec 10, 2014
Location: Ottawa County Health Dept. Building, 12251 James Street, Holland, MI 49424 (tentative location)
- Boxwood blight disease identified in North America
- Gardening in Michigan
- Integrated Pest Management Resources
- Michigan State University Organic Pest Management
- Midwest Invasive Species Information Network
- MSU Diagnostics Lab
- Restricted Use Pesticide (RUP) test locations
- Turfgrass Pest Management: Training Manual For Comm Applicators - Category3A (E2327)