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Filtering by: Creator United States. Forest Service. Intermountain Region Non-Academic Affiliation Oregon State University. Graduate School Subject Douglas fir beetle

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The biologies of predators (Coleoptera: Cleridae) of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins (Coleoptera : Scolytidae), in western Oregon

Insect enemies of Dendroctonus pseudotsugae Hopk. : indentification of their immature stages and distribution in standing trees

Diurnal and seasonal flight patterns of bark beetles (Coleoptera : Scolytidae) associated with Douglas-fir forests of western Oregon

The effect of competition on the population dynamics of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopk., in Oregon

The biologies of two dipterous predators of Dendroctonus pseudotsugae Hopkins (Coleoptera : Scolytdae) in western Oregon and Washington

The flight and olfactory behavior of checkered beetles (Coleoptera cleridae) predatory on the douglas-fir beetle

Certain biotic factors influencing the invasion and survival of the Douglas-fir beetle Dendroctonus pseudotsugae Hopkins (Coleoptera : scolytidae) in fallen trees

Studies on the flight behavior of Ips confusus (Lec.) (Coleoptera : Scolytidae) in response to attractants

Nematode associates and parasites of the Douglas fir beetle Dendroctonus pseudotsugae Hopkins with notes on biological control

Studies on the olfactory behavior of the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins

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