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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 ...
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.
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)
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.
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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 relies primarily on the white spruce tree as a host plant. [3] Both male and female spruce bud moths mate multiply, however males have the ability to secrete accessory gland proteins that prevent female re-mating. [4] The moth is univoltine, meaning only one generation hatches per year, and its eggs overwinter from July to ...