Western Forest Insects

Abies Adelges adults Agric Alaska Alberta ambrosia beetles aphid Arizona attacks bark beetles biology Blackman bole British Columbia brown budworm Calif California caterpillars cause Choristoneura cocoons Coleoptera Colo Colorado conifers contorta Cupressus damage defoliation Dendroctonus Dioryctria Douglas-fir egg galleries elytra Entomol FAMILY female flatheaded foliage forest insects forest pest galls genus hemlock host Idaho infested insects killed Lambdina larch large branches larvae larvae bore larvae feed LeConte Lepidoptera Linsley lodgepole pine looper mature larva Mealybug Mexico mites Monterey pine moth needles Nepytia North America numbers occidentalis occurs Oreg Oregon outbreaks overwinter parasites Pest Leafl Picea pine beetle Pinus ponderosa ponderosa pine Populus Pseudotsuga menziesii pupae pupate range resemble roundheaded sawfly scales Scolytidae Scolytus small branches species in North spruce SUPERFAMILY termites Trunk and large Tsuga Twigs and small U.S. Dep Utah Weevil West western hemlock western species wings wood Borer yellowish