- Kettlea, E.G.
- Easton, R.W.
- Craig, M.B.
- van Raalte, G.D.
In 1977, aerial spraying operations were carried out in New Brunswick over 4.2 million acres of forest to limit damage caused by the spruce budworm. Three insecticides, fentrothion, aminocarb, and trichlorofon were used. Results of spraying were generally good to excellent in terms of foliage saved and percentage of budworm killed.
Aerial surveys showed that in 1977 the budworm defoliated 1.5 million acres of spruce-fir forest in New Brunswick, 0.3 million acres in Prince Edward island, and 2.3 million in Nova Scotia. Based on the surveys of spruce budworm egg masses, the forecast is for infestations to increase in area and intensify in New Brunswick in 1978. In Prince Edward islands, populations subsided slightly but moderate to severe infestations are forecast for 1978. In Nova Scotia, Infestations have decreased in area and intensity on the Mainland but on Cape Breton island virtually all the fir-spruce forest is severely infested.