High Temperature Mortality of the Sugar-pine Cone Beetle, Conophthorus lambertianae Hopkins (Coleoptera: Scolytidae)

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Abstract
Conophthorus lambertianae broods within cones in sunny places on the ground can be killed by high temperatures. This conclusion is supported by experimental evidence from four sources: (1) mortality of broods in cones placed in the sun; (2) mortality of cone beetles exposed to high temperatures in the laboratory; (3) measurements of internal cone temperatures occurring in nature; and (4) consideration of some factors that influence internal cone temperatures.