Aerial Spraying Against the Spruce Budworm in Quebec in 1975 and Plans for 1976
Problem Addressed: Spruce Budworm infestation has spread so much in Quebec in the last two years that it is no longer possible to spray all the balsam and spruce stands that would need to be treated
Key Findings: Results of sprayings are satisfactory, considering the fact that the Spruce Budworm larvae have reached in 1975 population levels that had ever been recorded in the previous infestation
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- Paquet, Gerard
Entomology and Pathology Service Department of Lands and Forests - Desaulniers, Real
Entomology and Pathology Service Department of Lands and Forests
The Spruce Budworm infestation has spread so much in Quebec in the last two years that it is no longer possible to spray all the balsam and spruce stands that would need to be treated. The infested areas have indeed increased from 28.2 million acres in 1973 to 79.6 million acres in 1974 and 87.4 million acres in 1975.
Aerial spraying operations have been carried out in 1975 on a total area of 7.1 million acres, distributed as follows: operational treatments with chemicals, 6.647 million acres; experimental treatments with chemicals 249,100 acres; experimental treatments with B.t., 237, 600 acres.
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