The effect of age of current-year shoots of Picea glauca on survival, development time, and feeding efficiency of 6th-instar larvae of Choristoneura fumiferana
1987
Thomas, A.W.
Diets prepared from lyophilized and powdered current-year (1983) shoots of white spruce Picea glauca (Moench) Voss were offered to 6th-instar larvae of spruce budworm, Choristoneura fumiferana (Clemens) (Lepidoptera: Tortricidae). With increasing age of current-year shoots, time to pupation increased whereas survival, assimilation efficiency, efficiency of conversion of diet to moth biomass, and moth dry weight generally decreased. Sex of the larvae influenced amount ingested, time to pupation, and subsequent moth weight but not survival, assimilation efficiency, and efficiency of conversion of diet to moth biomass.
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