Two free programs on invasive insects in Maine are scheduled next month in Lewiston and Topsham.

The first is from 5 to 7 p.m. Wednesday, Sept. 12, at the Topsham Public Library, 25 Foreside Road. The second is from 1 to 3 p.m. Thursday, Sept. 13, at the Natural Resources Conservation Service office, 254 Goddard Road in Lewiston.

The programs will help participants identify current and potential invasive forest pests, including browntail moth, emerald ash borer, Asian longhorned beetle, hemlock woolly adelgid and winter moth — and their host tree species.

There will be a focus on understanding the threat that these pests post and to learn how to respond to and report suspected sightings and damage. Participants will receive an information packet with fact sheets, species lists and life cycles, and other relevant information regarding the goals of this program.

The workshops are sponsored by the Androscoggin Valley Soil and Water Conservation District, in association with the Maine Association of Conservation Districts. They are funded by a grant from the Maine Department of Agriculture, Conservation and Forestry.

The require registration because of space limitations. Call 207-241-5374 to register or visit www.androscogginswcd.org for more information.