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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
April 23, 2018 | Mary Dunckel | Garden enthusiasts are getting excited about the upcoming garden show which has become a spring staple in Northeast Michigan.
April 17, 2018 | Duke Elsner | Please register again for Michigan State University Extension's public input meeting on pollinator issues in the Grand Traverse region.
April 13, 2018 | Terry Davis | Not all the grub control products on store shelves will be effective this spring. Here’s how to choose and use the right one for your lawn.
April 12, 2018 | Tom Fernandez | Understanding the difference between alkalinity and pH and how alkaline water can affect plants is important in determining what to do to remedy possible nutritional problems.
Suleiman Bughrara, and Ron Calhoun, Department of Crop and Soil Sciences, Michigan State University | Bentgrass species are native to western Europe, are the most widely used coolseason grass for golf courses, putting greens, tees and closely mowed fairways in the United State. The genus Agrostis comprises more than 220 species. Four are discussed below.
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.
