By Bill McNee, DNR Forest Health Specialist, Oshkosh
Bill.McNee@wisconsin.gov or 920-360-0942
With this spring’s weather bringing above-average rainfall across most of Wisconsin, we will likely see moderate to heavy mortality of spongy moth caterpillars at many locations this summer.
Last year, the statewide May-June period was the third-driest since recordkeeping began in the late 1800s, according to the NOAA National Centers for Environmental Information. As a result, the effectiveness of the caterpillar-killing fungus, Entomophaga maimaiga, was limited. Spring 2024 is noticeably wetter, and thus, increased effectiveness of E. maimaiga is likely.
Continue reading “Watch For Spongy Moth Caterpillar Diseases”


The Urban Forestry Inflation Reduction Act grant program uses
Partner with community groups such as 4-H, Scouts, rotary clubs and neighborhood associations to plant and care for trees.
Over the years, a growing body of research has proven that regular access to trees makes us happier and healthier. They restore our sense of calm from head to toe — improving memory and attention span, enhancing cognitive functioning, lowering blood pressure, and reducing cortisol levels.
Many residents and land managers in southeastern Wisconsin search for effective and efficient practices to control exotic invasive plants in our natural areas. The Southeastern Wisconsin Invasive Species Consortium is teaming up again with