Douglas Fir: Aphids Categories: Conifers Douglas Fir Douglas Fir Insects Ornamentals Last review date: 2026-09-29 06:57 Last edit date: Giant conifer aphids on pine Photo by: A.L. Antonelli Biology The aphids that infest Douglas fir are quite large—up to 1⁄5″ long. They may range in color from gray to brownish to dark. The aphids establish […]
Douglas Fir: Coneworms Categories: Conifers Douglas Fir Douglas Fir Insects Ornamentals Last review date: 2025-08-13 08:31 Last edit date: Coneworm larvae on pine Photo by: K. Grey Biology Coneworms attack Douglas fir by boring into shoot tips or stems, especially around wounds, and feeding on the soft bark tissues. The portion of the branch beyond […]
Douglas Fir: Cooley spruce gall adelgid Categories: Conifers Douglas Fir Douglas Fir Insects Ornamentals Last review date: 2026-04-27 07:09 Last edit date: Douglas-fir Cooley spruce gall adelgids Photo by: A.L. Antonelli Biology This aphid-like insect feeds on newly growing needles. adelgids appear as woolly or cottony tufts on the needles, with heavily infested trees appearing […]
Douglas Fir: Douglas fir needle midge Categories: Conifers Douglas Fir Douglas Fir Insects Ornamentals Last review date: 2026-04-27 07:20 Last edit date: Douglas-fir needle midge Photo by: R.S. Byther Biology The tiny white larvae of the Douglas fir needle midge mine the inside of needles, which become yellowed and distorted. Infested needles often have a […]
Douglas Fir: Douglas fir tussock moth Categories: Conifers Douglas Fir Douglas Fir Insects Ornamentals Last review date: 2026-04-27 07:53 Last edit date: Douglas-fir tussock moth Photo by: R.D. Akre Biology Douglas fir tussock moth larvae start at branch tips at the top of the tree and work down, feeding mainly on the new foliage and […]
Douglas Fir: Douglas fir twig weevil Categories: Conifers Douglas Fir Douglas Fir Insects Ornamentals Last review date: 2026-04-27 08:31 Last edit date: Douglas-fir twig weevil on noble fir Photo by: Unknown Biology The Douglas fir twig weevil is a small, wingless, grayish-black beetle with white markings and sometimes pinkish spots. The adult lays eggs in […]
Douglas Fir: Sequoia pitch moth Categories: Conifers Douglas Fir Douglas Fir Insects Ornamentals Last review date: 2026-04-27 11:23 Last edit date: Sequoia pitch moth Photo by: S.J. Collman Biology The larvae of the sequoia pitch moth feed by boring into branches or trunks. At the point where the larva enters the wood, small to large […]
Douglas Fir: Silverspotted tiger moth Categories: Conifers Douglas Fir Douglas Fir Insects Ornamentals Last review date: 2026-04-27 11:29 Last edit date: Douglas-fir silverspotted tiger moths Photo by: A.L. Antonelli Biology The caterpillars of the silverspotted tiger moth feed on the needles, often “tenting” branches with dirty-looking webs. Feeding occurs through fall and winter, with webs […]
Douglas Fir: Spruce spider mite Categories: Conifers Douglas Fir Douglas Fir Insects Ornamentals Last review date: 2026-04-28 08:10 Last edit date: Spruce spider mite adult Photo by: A.L. Antonelli Biology The presence of spruce spider mites is indicated by yellow or bronze stippling beginning near the needle bases. Infestations usually begin on older needles of […]