True Fir: Balsam twig aphid Categories: Conifers Ornamentals True Fir True Fir Insects Last review date: 2026-09-29 06:57 Last edit date: Balsam twig aphid Photo by: A.L. Antonelli Biology Balsam twig aphids feed on needles and buds of firs. Three distinct forms of the balsam twig aphid occur. Aphids may be: Small and yellow green […]
True Fir: Balsam woolly adelgid Categories: Conifers Ornamentals True Fir True Fir Insects Last review date: 2026-01-29 12:43 Last edit date: Balsam woolly adelgid damage Photo by: R.S. Byther Biology The balsam woolly adelgids feeds on the stems of true firs. White or grayish cotton-like masses, inside which are the purplish-black insects, can be found […]
True Fir: Coneworms Categories: Conifers Ornamentals True Fir True Fir Insects Last review date: 2026-01-29 12:46 Last edit date: Coneworm larvae on pine Photo by: K. Grey Biology Coneworms attack trees by boring into shoot tips or stems, especially around wounds, and feeding on the soft bark tissues. Tip dieback may result from coneworm feeding. […]
True Fir: Giant conifer aphids Categories: Conifers Ornamentals True Fir True Fir Insects Last review date: 2026-09-29 06:57 Last edit date: Giant conifer aphids on pine Photo by: A.L. Antonelli Biology Giant conifer aphids are large (up to 1⁄5″) and dark brown to black in color. They overwinter as eggs on twigs or branches. Adults […]
True Fir: Spruce budworm Categories: Conifers Ornamentals True Fir True Fir Insects Last review date: 2026-01-27 02:46 Last edit date: Caption: Spruce budworm Photo by: T.J. Fitzgerald Biology These larvae feed on the buds and foliage and may tie shoot tips together with webbing to make a nest. They are typically green to brown in […]
True Fir: Spruce spider mite Categories: Conifers Ornamentals True Fir True Fir Insects Last review date: 2026-01-27 02:44 Last edit date: Spruce spider mite adult Photo by: A.L. Antonelli Biology The presence of spruce spider mites is indicated by yellow or bronzish stippling beginning near the needle bases. Infestations usually begin on older needles of […]