Insect Pests

Author(s) Chris Williamson, P. J. Liesch, Jim Kerns, Roger Flashinski. Woody Ornamentals Pest Management in Wisconsin is an indispensable resource...

Author(s) C. F. Koval, S. W. Binnie. The eastern tent caterpillar is native to North America, and records of its existence go back as far as 1646....

Author(s) R. C. Williamson, P. J. Pellitteri. The bronze birch borer is a serious pest of birch trees in the Midwest. It can severely injure or ki...

Author(s) C. A. Johnson, R. C. Williamson. The linden borer (Saperda vestita Say) is a native insect found throughout northeastern North America t...

Author(s) R. Chris Williamson, Andrea Diss. The gypsy moth caterpillar has a distinctively bristly body, with five pairs of blue warts followed by...

Author(s) R. C. Williamson, C. F. Koval. Skeletonizing of the leaves of roses, raspberries, grapes, fruit trees, and many other cultivated trees a...

Author(s) R. Chris Williamson. This fact sheet on the Japanese beetle, considered the single most important turf grass pest in the United States ...

Author(s) R. Chris Williamson, Andrea Diss. Many insecticides are available to control gypsy moths; however, not all are created equal. Before you...

Author(s) R. Chris Williamson, Andrea Diss. Gypsy moth egg masses contain all the eggs a female moth produces. Each destroyed egg mass represents ...

Author(s) R. Chris Williamson. This fact sheet covers the highly destructive gypsy moth, detailing its life cycle, the destruction it causes, and ...

Author(s) P. J. Pellitteri, C. F. Koval, D. L. Mahr. Maple leaves frequently develop growths or swellings known as galls. These are caused by micr...