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Editor’s note: This article is from the archives of the MSU Crop Advisory Team Alerts. Check the label of any pesticide referenced to ensure your use is included.
Beetles
collected from Arrowhead Viburnum in St. Clair County last August were
confirmed by Jim Zablotny and the USDA Systematic Entomology Laboratory
to be Pyrrhalta viburni (Paykull), the Viburnum leaf beetle (Coleoptera: Chrysomelidae). This represents a new state record for Michigan.
We
are very interested in knowing if this beetle occurs elsewhere in
Michigan, so please send in any beetles or larvae you find feeding on
Viburnum.
An adult viburnum leaf beetle. Photo credit: P. Weston, Cornell University, ForestryImages.org
June 16, 2017 | Jill O’Donnell | Dry conditions, leaf drop on maple, rose chafer and forest tent caterpillar are active. Scout for scale crawlers. Symptoms of fungal pathogens are showing up.
June 9, 2017 | Diane Brown | Swallow-worts are an invasive plant species that kill the larvae of monarch butterflies, are toxic to deer and livestock, and choke out more desirable plant species.
David Smitley, Michigan State University Department of Entomology, and Deborah G. McCullough, Michigan State University Departments of Entomology and Forestry | Guidelines for homeowners with hemlock trees infested with hemlock woolly adelgid.
David Smitley, Michigan State University Department of Entomology; Diane Brown and Erwin Elsner, MSU Extension; Joy N. Landis, MSU IPM; Paula M. Shrewsbury, Univ. of Maryland Department of Entomology; and Daniel A. Herms, Ohio State University Department of Entomology | “Protecting and enhancing pollinators in urban landscapes for the US North Central Region” provides information for landscapers and gardeners who want to attract pollinators and protect them during pest management tactics or pesticide applications.
Curt Peterson , and Randy Heatley | Flowering crabapples are among the most popular ornamental trees. Few woody plants offer so many all-season values as these trees.
Diane Brown-Rytlewski| A Pocket IPM Scouting Guide for Woody Landscape Plants. This plastic-coated scouting guide with its 3.5" X 6.0" pages is designed to fit in your pocket for easy field use in working with trees and shrubs.
