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Choristoneura fumiferana, the eastern spruce budworm, is a species of moth of the family Tortricidae native to the eastern United States and Canada. The caterpillars feed on the needles of spruce and fir trees. Eastern spruce budworm populations can experience significant oscillations, with large outbreaks sometimes resulting in wide scale tree ...
Choristoneura freemani Razowski, 2008, western spruce budworm; Choristoneura fumiferana (Clemens, 1865), eastern spruce budworm; Choristoneura griseicoma (Meyrick, 1924) Choristoneura hebenstreitella (Muller, 1764), mountain-ash tortricid; Choristoneura heliaspis (Meyrick, 1909) Choristoneura improvisana (Kuznetsov, 1973)
Western spruce budworm caterpillar, sixth (final) instar Adult moths are about 1 / 2 inch (12.7 mm) long and have a wing-spread of 7 / 8 to 1 1 / 8 inches (22 to 28mm). Moths of both sexes are similar in appearance, although the females are a bit more robust than males.
First occurrence around Medford, Massachusetts (1888) Progressive spread of the gypsy moth (L. dispar) across north east US from 1900 to 2007; compiled from county data by US Forest Service The spongy moth ( Lymantria dispar ), formerly known as the gypsy moth, was introduced in 1868 into the United States by Étienne Léopold Trouvelot , a ...
I went with a Vermont White Spruce (with pre-strung lights) in a 7.5-foot size ($1,249; $949), and I tested it for one full season, setting it up, decorating it and breaking it down when the time ...
The eastern spruce budworm is an example of a destructive insect in fir and spruce forests. Birds are a natural form of biological control, but the Trichogramma minutum , a species of parasitic wasp, has been investigated as an alternative to more controversial chemical controls.
One of the studies included in the review found that of 18 people, 15 saw their toenail fungus at least partially clear up after dabbing the affected area with Vicks at least once a day for a year ...
The balsam fir is the preferred main host of the eastern spruce budworm, which is a major destructive pest throughout the eastern United States and Canada. [13] During cyclical population outbreaks, major defoliation of the balsam fir can occur, which may significantly reduce radial growth. [14] This can kill the tree.