By Linda Williams, forest health specialist, Woodruff, Linda.Williams@wisconsin.gov, 920-360-0665
If you’ve ever looked closely at oak leaves in late summer you know that you can find lots of interesting things on them this time of year. You’ll see anything from a variety of caterpillars and galls of all shapes and sizes to dead portions of branches caused by insects and diseases. These late season defoliators rarely cause actual health issues for the tree, and rarely require any control, but they can be very noticeable with some dramatic damage. Continue reading “Oak webworms, blotchminers, skeletonizers and dead branch tips in late summer”





We want to give you a heads-up and urge you to fill out a survey that may be coming your way.
After much deliberation, WI DNR Urban Forestry has decided to postpone the Community Tree Management Institute (CTMI) for one year. The health and safety of others is paramount. Due to the pandemic, it’s just not feasible to come together in person for this training. Group interaction and networking are an integral part of the CTMI experience, so we will look forward to coming together in the fall of 2021 with the start of the next CTMI class (exact dates to be determined). 