BOISE, IDAHO | By KEITH RIDLER (AP) — The Idaho Senate has approved legislation allowing the state to hire private contractors to kill up to 90% of the wolves roaming Idaho.

The agriculture industry-backed bill approved Wednesday includes additional changes intended to cut the wolf population from about 1,500 to 150.

Backers say there are too many wolves and they are attacking cattle, sheep and wildlife. Opponents say the legislation threatens a 2002 wolf management plan involving the federal government that could ultimately lead to the U.S. Fish and Wildlife Service taking back control of managing the state’s wolves.

About 500 wolves have been killed in Idaho in each of the past two years.