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Variation in phenology and monoterpene patterns of defoliated and nondefoliated douglas-fir ( pseudotsuga menziesii var. glauca'). Forest Service research paper

Technical Report ·
OSTI ID:5450227
Foliage was collected from paired Douglas-fir (Pseudotsuga menziesii) trees characterized as either resistant' or susceptible' to western spruce budworm (Choristoneura occidentalis) (Lepidoptera: Tortricidae) attack. Resistant trees produced more foliage monoterpenes and broke bud 7 to 10 days earlier than susceptible trees.
Research Organization:
Forest Service, Portland, OR (United States). Pacific Northwest Research Station
OSTI ID:
5450227
Report Number(s):
PB-94-129731/XAB; FSRP-PNW--459
Country of Publication:
United States
Language:
English