By Linda Williams, DNR Forest Health Specialist, Woodruff; Linda.Williams@wisconsin.gov or 920-360-0665

Spruce budworm overwinters as tiny caterpillars (yellow arrow) that migrate to the buds before they start to swell in the spring. A magnifying lens is needed to see them at this stage. / Photo Credit: Linda Williams, Wisconsin DNR.
For the 11th consecutive year in Wisconsin, spruce budworm has caused significant defoliation on spruce, balsam fir and tamarack in some areas of the state.
This year, areas with widespread severe defoliation include Oneida and Vilas counties, with Forest, Iron, and Langlade counties also showing significant defoliation.
Continue reading “Severe Spruce Budworm Defoliation Hits In Northwest”


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Expand your restoration skillsets by getting past the Genus Salix to further your understanding of willow species identification, their habitat needs and their importance for pollinators. Follow Zach Khron and Matt Smith into off-trail areas of Riveredge’s uncommon habitats to find willow populations, identify at the species level and discuss management. We will start our day in the lab to review herbarium specimens and end it in the field.
The city of Madison is happy to announce Ian Brown as the new City of Madison Forester.