White Pine Weevil - Penn State Extension
2023年4月14日 · The white pine weevil is considered the most destructive insect pest of eastern white pine in North America. This species kills the terminal leader primarily of eastern white pine. Colorado blue, Norway, and Serbian spruces, Scots, red, pitch, jack, and Austrian pines, and occasionally Douglas-fir are also attacked.
Control white pine weevil in early spring - Gardening in Michigan
2023年3月27日 · If infestation is severe and you need to control white pine weevil with insecticides, your best opportunity is early in spring. Insecticide should be applied to the terminal leader once it begins to warm up, somewhere around 25 to 65 growing degree-days at a base temperature of 50 degrees Fahrenheit.
Hylobius abietis - Wikipedia
Hylobius abietis or the large pine weevil is a beetle belonging to family Curculionidae. This species is widely regarded as the most important pest of most commercially important coniferous trees in European plantations.
White Pine Weevil [fact sheet] - Extension
The white pine weevil (Pissodes strobi) is one of the most destructive insect pests of eastern white pines in North America. Norway spruce, jack pine, scotch pine, pitch pine, red pine, blue spruce, and white spruce are also susceptible to white pine weevil damage.
White Pine Weevil - 5.606 - Extension
The white pine weevil (Pissodes strobi) produces a conspicuous injury to the terminal growth of spruce trees. In late spring, new growth wilts and dies back. The affected terminals wilt into a ‘shepherd’s crook’ form and the needles often become …
Pine weevil | Wood-boring, Bark-feeding, Pest | Britannica
Pine weevil, any wood-boring beetle of the insect family Curculionidae (order Coleoptera). Their most unusual physical characteristic is an elongated beak, or snout. The white pine weevil (Pissodes strobi) of North America kills the central growth shoot of …
Pissodes strobi - Wikipedia
Pissodes strobi, known as the white pine weevil or Engelmann spruce weevil, is the primary weevil attacking and destroying white pines. It was described in 1817 by William Dandridge Peck, professor of natural history and botany at Harvard University. The weevil is dark brown with white spots and is native to North America. [1]
The white pine weevil, Pissodes strobi, is a native North American insect that poses a serious threat to spruce and pine trees transcontinentally across the northern regions of the U.S. and adjoining Canada. It infests and kills the main shoot (terminal leader) of young trees (Fig. 1), causing formation of multiple trunks and bushy-topped trees.
White pine weevil - NRCan
White pine weevil is a widespread, native insect of young pine and spruce trees in North America. Originally, it was thought there were two additional related species attacking Sitka (P. sitchensis) and Engelmann (P. engelmannii) spruce in the west. It is now recognized that there is a single species with a transcontinental gradient in ...
The white pine weevil (WPW), Pissodes strobi, attacks Eastern white pine, Norway spruce, Scotch pine and other pines. WPW is found throughout Virginia. WPW usually attacks only the upright terminal leader. The previous year’s leader (the …