oak slug sawfly

The health of our forests: 2017 year-in-review

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Every year, the beautiful forests of our state are at risk from ominous threats.  Native insects come and go in significance, but the threat from invasive insects is only increasing with time. Some, such as the hemlock woolly adelgid and the emerald ash borer, have the potential to wipe out an entire group of trees in … Read more

Don’t let the oak slug sawfly haunt you

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Skeletons are becoming a familiar sight in Durham this summer, and it’s not from overly excited fans of Halloween décor. These skeletons are of once-green oak leaves, the remaining veins after the oak slug sawfly has had its fill. This insect is responsible for the sudden transformation of oaks in and around downtown Durham from … Read more