USDA Forest Service - Region 2 - Rocky Mountain Region Archive, USDA Forest Service,
Japanese Pine Sawyer
Monochamus alternatus

Japanese Pine Sawyer (Monochamus alternatus ) is an insect pest of non-native pine trees. It is a native of Japan.

Carrier of the pine wilt nematode, which causes wilt disease of non-native pine trees. This is just one of many forest pests that are moved to un-infested forests by humans moving firewood. Help protect our forests: don't move firewood!

This insect pest has been identified by USDA-APHIS as a serious threat to US Agriculture and Natural Resources, and surveys have been planned for multiple states.

Survey Maps Planned Surveys
Planned Surveys for Monochamus alternatus
Not all counties are required to report.