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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.
The range of the eastern spruce budworm is the largest of all budworms and coincides with the range of its hosts: fir and spruce trees in eastern North America, primarily in Canada. [ 8 ] [ 9 ] It includes the Boreal Forest as well as the Great Lakes-St. Lawrence , Northern, and Acadian forest regions. [ 10 ]
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. [64]
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 ...
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 Ohio Department of Agriculture confirmed an Ohio cattle herd in Wood County has tested positive for bird flu. The test result is awaiting confirmation from the U.S. Department of Agriculture.
Cattle drenches can be applied through a solution poured on the back, throat or an injection. [1] [2] Cattle drenches are predominately necessary for young cattle with weaker immune systems that are susceptible to parasite infestation. [1] Drenching is a common method for controlling parasites in the meat and dairy industries. [1]
For example, the spruce budworm, a destructive pest of spruce and balsam fir, has been monitored using pheromone traps in Canadian forests for several decades. [33] In some regions, such as New Brunswick, areas of forest are sprayed with pesticide to control the budworm population and prevent the damage caused during outbreaks. [34]
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