Pine: Coneworms categories: Conifers Ornamentals Pine Pine Insects last review date: 2025-10-14 02:51 Pine coneworm damage Photo by: L.J. du Toit Biology Coneworms attack trees by boring into green cones. They also may bore into shoot tips or stems, especially around wounds. Tip dieback may result from coneworm feeding. Injured twigs often can be distinguished […]
Pine: Eriophyid mites categories: Conifers Ornamentals Pine Pine Insects last review date: 2025-11-13 03:19 Pine eriophyid mite damage Photo by: R.S. Byther Biology Eriophyid mites are tiny, wormlike, whitish or tan mites which feed under bud scales or in the needle sheaths, often between the needle bases. Symptoms of eriophyid mite infestations include yellowing, distortion, […]
Pine: European pine shoot moth categories: Conifers Ornamentals Pine Pine Insects last review date: 2025-07-31 02:43 European pine shoot moth larva Photo by: E.P. Breakey Biology The larvae of the European pine shoot moth feed on tips of branches, boring first into needles or bud bases, then into the shoots. Infested tips are covered with […]
Pine: Mountain pine beetle categories: Conifers Ornamentals Pine Pine Insects last review date: 2025-07-31 02:44 Bark beetle larval galleries Photo by: A.L. Antonelli Biology The mountain pine beetle attacks pine trees (trunks and branches) 4″-5″ in diameter or larger. The adults and larvae mine the bark, weakening and girdling trees. Heavily infested trees may decline […]
Pine: Pandora moth categories: Conifers Ornamentals Pine Pine Insects last review date: 2025-07-31 02:44 Pandora moth adult Photo by: Unknown Biology Pandora moth larvae are brownish- to yellowish-green, spiny, and about one inch long at maturity. The larvae feed on the needles of pines, especially ponderosa, Jeffrey, and lodgepole. The stubs of eaten needles remain […]
Pine: Pine aphid categories: Conifers Ornamentals Pine Pine Insects last review date: 2025-10-14 02:51 Woolly pine aphid Photo by: R. Portman Biology Pine aphids are long-legged dark green or brown aphids covered with a white, woolly material. They are found in colonies on the needles. The aphids produce large amounts of honeydew (a sweet, sticky […]
Pine: Pine bark adelgid categories: Conifers Ornamentals Pine Pine Insects last review date: 2025-10-15 12:21 Pine bark adelgid Photo by: A.L. Antonelli Biology Pine bark adelgids form woolly or cottony white masses on the trunk, branches, or twigs. Heavy infestations can look like snow on the trunks of trees. Seedling and young trees may have […]
Pine: Pine butterfly categories: Conifers Ornamentals Pine Pine Insects last review date: 2025-07-31 02:48 Pine butterfly Photo by: Unknown Biology The larva of the pine butterfly is a dark green caterpillar with white stripes on the sides and a black head. The caterpillars feed on the needles, hatching out when new needles begin to appear. […]
Pine: Pine needle scale categories: Conifers Ornamentals Pine Pine Insects last review date: 2025-07-31 02:49 Pine needle scale Photo by: K. Grey Biology Pine needle scales are elongate, pure white scales which feed on the needles. Heavily infested trees may appear “flocked”. Infested needles turn yellow, then brown. Twigs and branches may be killed. Repeated […]
Pine: Pine needle sheathminer (Pine sheath miner) categories: Conifers Ornamentals Pine Pine Insects last review date: 2025-07-31 02:50 Pine sheath miner Photo by: R.S. Byther Biology Pine needle sheathminers are orange to tan larvae that feed on the needles. Young larvae mine inside needles, while older larvae feed at the base of needles inside the […]