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Observations on the level of infection and intensity of Nosema fumiferanae (microsporida) in two different field populations of the spruce budworm, Choristoneura fumiferana



Observations on the level of infection and intensity of Nosema fumiferanae (microsporida) in two different field populations of the spruce budworm, Choristoneura fumiferana



Information Report Forest Pest Management Institute, Canadian Forestry Service (FPM-X-79): 15



In Gargantua, Ontario, an area of decreasing budworm infestation, the average infection level of N. fumiferanae increased only slightly from 52% in 1982 to 62% in 1985. However, the intensity of infection decreased sharply from 30.7x106 spores/insect in 1982 to 4.5x106 spores/insect in 1985. The spruce budworm collapsed in 1985.

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Accession: 001898876

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Related references

Observations on the incidence rates of Nosema fumiferanae (Microsporida) in a spruce budworm, Choristoneura fumiferana, (Lepidoptera: Tortricidae) population. Proceedings of the Entomological Society of Ontario 1978; 108: 144-145, 1977

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