Although at the present time there is no infestation of the spruce budworm in Maine, it seems advisable to take precautionary steps now due to the fact that this is such a serious pest and so complicated to deal with. A severe outbreak occurs in Ontario where 10,000 square miles of balsam and white spruce are ruined and in western Quebec which is moving eastward. Furthermore, a separate outbreak is just as apt to start up in eastern Canada and New England. Individual specimens were collected in several places in Maine during 1941 and 1942 by means of the forest insect survey. outbreaks in the past have occurred roughly every forty to fifty years. Our last outbreaks occurred from 1910 - 1919. the insects overwinter as young larvae, feed for 3 to 5 weeks starting in early June, and appear as moths during July.