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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)
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 ...
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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.
It is the most commonly used pesticide and is used against other pests, including the western spruce budworm and other Choristoneura and the tent caterpillar. When Bt is taken internally, the insect is paralyzed, stops feeding, and dies of starvation or disease. Chemical pesticides are contact poisons and stomach poisons.
Spruce budworm (adult and pupa shown), a serious pest of forests, can be monitored using pheromone traps Main articles: Mechanical pest control , Insect trap , and Crop rotation Mechanical pest control is the use of hands-on techniques as well as simple equipment and devices, that provides a protective barrier between plants and insects .
An ectoparasiticide is an antiparasitic drug used in the treatment of ectoparasitic infestations. [1] These drugs are used to kill the parasites that live on the body surface. Permethrin , sulfur , lindane , dicophane , benzyl benzoate , ivermectin and crotamiton are well known ectoparasiticides. [ 2 ]