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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.
Carroll Burns Williams Jr. (September 24, 1929 – March 1, 2024) was an American research forester and entomologist. He was the first African American scientist hired by the United States Forest Service and the first African American to receive a Ph.D. in forestry and entomology.
The position of their nests along the branches of deciduous trees was more variable than in conifers. On this site, 56% of nests were at heights from 21 to 36 ft (6.4–11 m). Of 9 western tanager nests in an Alberta study site, eight occurred in white spruce (Picea glauca) and one was found in quaking aspen. Nest height ranged from 20 to 42 ft ...
The spruce bud moth defoliates young white spruce trees, and after 1980, upon the plantation of extensive regions of white spruce, has been considered a pest. As mentioned, the larvae of the spruce bud moth, in particular, deform the buds of the spruce tree greatly, specifically destroying the cortical tissue and crown of the tree, weakening ...
Choristoneura occidentalis. Archips occidentalis [or Choristoneura occidentalis in some schemes] is a species of moth of the family Tortricidae.It is found in the Gambia, and possibly more broadly, such as Democratic Republic of Congo, Tanzania, and South Africa.
Dioryctria reniculelloides, the spruce coneworm, is a moth of the family Pyralidae. The species was first described by Akira Mutuura and Eugene G. Munroe in 1973. [ 1 ] [ 2 ] [ 3 ] It is found from Nova Scotia to Alaska , south in the east to New York , and south in the west to California and New Mexico . [ 4 ]