The U.S. Fish and Wildlife Service is expanding the sea lamprey control program for Lake Champlain.
Earlier this month the service approved a plan to kill lamprey on two streams and trapping and removing them from another.
The Lake Champlain Fish and Wildlife Management Cooperative treats 15 Lake Champlain tributaries in Vermont and New York to kill young lamprey that feed on sport fish in the lake.
New lampricide treatments have been authorized for the Lamoille River in Milton, and on Mill Brook in Port Henry, N.Y.
Lamprey will be trapped in Pond Brook in Colchester during spawning migrations.
The Mill Brook in Port Henry will be treated with lampricide on Oct. 14.
There is no treatment scheduled for the Lamoille River.