Comparison of early and late timing of spray applications for control of spruce budworm in Quebec
- 1 September 1981
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Forest Research
- Vol. 11 (3) , 538-544
- https://doi.org/10.1139/x81-074
Abstract
An experiment was conducted in the Lower St. Lawrence region of Quebec in 1978 to determine (1) the validity of aerial spray applications of aminocarb timed against emerging L2 larvae of the spruce budworm (Choristoneurafumiferana (Clem.)) as well as (2) the relationship of timing spray applications and success of treatment. Two successive applications timed at peak L4–L5 (regime C) gave better results than similar treatment at peak L2 and peak L4 (regime A). Reduction in larval population density, and the amount of foliage saved due to regime C were almost twice that obtained with regime A.This publication has 1 reference indexed in Scilit:
- Rate of defoliation of balsam fir in relation to spruce budworm attack and timing of spray applicationCanadian Journal of Forest Research, 1979