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1. Pheromone traps for detecting incipient outbreaks of the spruce budworm, Choristoneura fumiferana (Clem.)
Pheromone traps for detecting incipient outbreaks of the spruce budworm, Choristoneura fumiferana (Clem.)
Sanders Christopher J.
Sault Ste. Marie : Canadian Forest Service , 1996. - 8 s. : 4 obr., 1 tab., príl., 28 cm
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