Michigan: time to check trees for hemlock woolly adelgids

Invasive pest already confirmed in five southwest Michigan counties
Hemlock woolly adelgids, tiny invasive insects that suck nutrients from hemlock trees, are known to be present in Allegan, Ottawa, Muskegon, Oceana and Mason counties.
State agency staff, university researchers and regional cooperative invasive species management areas have been working to identify and contain infestations that span across public and private lands.
This winter, the Michigan departments of Natural Resources and Agriculture and Rural Development encourage those who have eastern hemlock trees on their property, whether in known infested counties or elsewhere, to take time to inspect the trees for signs of hemlock woolly adelgid.
If untreated, hemlock woolly adelgids can kill hemlock trees in four to 10 years. Trees can be protected with proper insecticide treatments. Read more






