The large, white spotted black adult ALB (pictured above) are active in the summer and can sometimes be found in swimming pool filters.
You can see the oval shaped pits that the females chew into the tree in order to lay their eggs.
ALB droppings or "frass" (which looks like coarse sawdust) is pushed out of the holes and cracks in trees by the larva..
When the adults emerge from thetree they leave ¼ to dime sized holes that are round and smooth.
A number two pencil fits cleanly into the hole sometimes half way through the tree.
The characteristic round, dime sized exit holes and oval egg laying pits can be seen along large branches or on the trunk of infested trees.
Look for trees (especially Maples) with dying branches.
If you see a suspect tree or beetle, please take photos, record the location, try to collect the beetle(s) in a jar, and report it to the Bay County Gypsy Moth Suppression Program Staff at wallacea@baycounty.net or call 989-895-4195.