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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.
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 ...
Many of the economically important pests among the tortrix moths belong to this tribe, for example the Light brown apple moth and the spruce budworms. The larvae are often polyphagous . [ 1 ]
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 ]
The chemicals used by other moths are species-specific. For example, the Eastern spruce budworm Choristoneura fumiferana female pheromones contain a 95:5 mix of E-and Z 11-tetradecenal aldehydes, while the sex pheromones of other species of spruce budworm contain acetates and alcohols. [13]