Trees

Author(s) P. J. Pellitteri, C. F. Koval A small insect called the ash plant bug attacks ash trees in June and July, causing thin, discolored, spot...

Author(s) Stan Binnie. Home construction can easily damage or even kill prized and valuable landscape trees. Learn the simple steps of safely prot...

Author(s) M. F. Heimann, G. L. Worf. Physical damage to the trunk—caused by sunscald or even lawn mower damage—opens the way for a fungal infectio...

Author(s) M.F. Heimann, G.L. Worf. Fire blight sometimes causes dramatic and serious damage, blackening leaves and either the vegetative shoots or...

Author(s) C. F. Koval, D. L. Mahr, P. J. Pellitteri. Cottony maple scale is an insect that can infest the twigs of maples and other shade trees wi...

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) G. L. Worf, M. F. Heimann. The honeylocust has become an increasingly important street and landscape tree in Wisconsin. Finer textured a...

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, P. J. Pellitteri. Tiny aphid-like insects frequently cause unusual swellings called galls at or near the ends of spruc...

Author(s) M. F. Heimann, G. L. Worf, P. J. Pellitteri. Sooty mold can be found on virtually any plant in the state. Nearly all shade trees and eve...

Author(s) Anna Haines, Lynn Markham, Dan McFarlane, Eric Olson, Rebecca Roberts, Linda Stoll. Forests have played a large role in the physical and...

Author(s) Michael A. Bozek Remarkably, after a tree falls in the lake, it might last another 300 to 600 years in the water. Fish use submerged tree...

Author(s) Dave Marcouiller, Terry Mace. Can timber cutting and forest recreation be compatible? This detailed study attempts to answer that questi...

Author(s) M. F. Heimann, P. J. Pellitteri, E. B. Smalley, R. P. Guries. Dutch elm disease is a fatal fungus disease attacking American elms. The f...

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) E. R. Hasselkus Here's sound advice on planting, watering, mulching, pruning, and maintaining flowering shrubs and other woody plants (...

Author(s) M. F. Heimann, G. R. Stanosz, G. L. Worf. These two, needle diseases can make Christmas trees unmarketable and can ruin the beauty of Sc...

Author(s) M.F. Heimann, G.R. Stanosz, G.L. Worf. Mountain ash scab is not always a serious problem in Wisconsin, but in wet years it can reach nea...

Author(s) P. J. Pellitteri, D. L. Mahr. The maple petiole borer is an introduced species that has extended its range from the northeastern states ...

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...

Author(s) Mark Rickenbach, Luke Saunders. Wisconsin's Managed Forest Law (MFL) is a deferred property tax program that provides an incentive to pr...

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) C. F. Koval, D. L. Mahr. Landscapers and nursery operators in Wisconsin long considered honeysuckle a low-maintenance plant. The arrival...

Author(s) K. A. Delahaut. The honeylocust has become an increasingly important street and landscape tree in Wisconsin. Finer textured and less for...