The battle against the balsam fir sawfly that has threatened lumber stocks worth more than $750 million in western Newfoundland — and forests elsewhere in Eastern Canada — may start within days.

The province's Department of Natural Resources has begun using a new natural spray in its battle against the balsam fir sawfly, which has threatened lumber stocks worth more than $750 million in ...

An invasive bug that kills fir trees has been detected in northern Michigan, state officials said Tuesday. The balsam woolly adelgid has been found in trees on a residential property in Missaukee ...

The wheat-stem sawfly, ... Diprion polytomum, and also in fighting the plague of balsam woolly aphis, which is causing serious injury to balsam fir in the Maritime Provinces.