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Either (E)- or (Z)-11-tetradecenal, the two pheromone components, or one analogue, 9-(cyclopent-2-en-1-yl)-nonanal, effectively reduced mating of spruce budworm moths, Choristoneura fumiferana (Clem.), in the laboratory. The results suggest that different behavioural and physiological processes may be occurring in pheromonal attraction and close range mating prevention in the spruce budworm.
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Schmidt et al. (1980) studied this question.
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