Problem Addressed: Tree mortality and growth due to pandora moth outbreaks
Goal(s)/Objective(s): Examine tree mortality and growth in defoliated, insecticide treated, and undefoliated stands in the pandora moth outbreak area on the Kaibab National Forest
Key Findings: Tree mortality was less than 1%, defoliation loss was estimated at least 11 f.b.m. per acre per year.
Goal(s)/Objective(s): Suppress an incipient spruce budworm outbreak in the Lower St. Lawrence region of Quebec though the aerial application of DDT
Key Findings: Although the distribution of eggs could serve as a guide to determine the areas requiring treatment the following year, the exact delimitation of the spray area should be based on a survey carried out just before application of the insecticide.
Goal(s)/Objective(s): Provide some details of the variation in mortality among plots, as well as describing recovery.
Key Findings: It appears that while these immature stands have recovered remarkably from the effects of intense uncontrolled defoliation, they will yield only slightly more than one-half of the projected volume at maturity.