PORTLAND — Registration is open until Sept. 26 for the free collection in October of banned or unusable pesticides by the Maine Department of Agriculture, Conservation and Forestry and Maine Department of Environmental Protection.

Collection will be conducted at four sites, including Portland and Augusta. Agriculture Department spokesman John Bott said registrants will be directed to the proper site once the required forms are received.

Collected pesticides will be shipped to disposal facilities licensed by the federal Environmental Protection Agency.

More information, instructions  and registration forms can be found online at 1.usa.gov/1tz8g7n.