A RECENT SPRUCE BUDWORM OUTBREAK IN THE LOWER ST. LAWRENCE AND GASPE PENINSULA WITH REFERENCE TO AERIAL SPRAYING OPERATIONS

1 September 1960

journal article
Published by Canadian Institute of Forestry in The Forestry Chronicle

Vol. 36 (3) , 209-224
https://doi.org/10.5558/tfc36209-3

Abstract

The main topics discussed in this paper are: the progress of the spruce budworm outbreak in the Lower St. Lawrence - Gaspé regions from 1949 to 1956; the areas sprayed between 1954 and 1958; timing of spray application in relation to insect abundance and development; effects of treatment on spruce budworm populations and on defoliation of balsam fir; results of aerial defoliation surveys and egg surveys; estimated amounts of wood destroyed by the insect, and losses averted through spraying; the various natural control factors associated with the decline and the eventual collapse of the outbreak.

Keywords

RECENT SPRUCE
SPRUCE BUDWORM
BUDWORM OUTBREAK
SPRAYING OPERATIONS
AERIAL SPRAYING
GASPE PENINSULA

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