Author： THORNBURY JOHN R. DEXTON ROBERT E.
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.65, Iss.5, 1972-09, pp. : 1232-1235
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Abstract
Low kilovoltage radiography of western spruce budworm, Choristoneura occidentalis Freeman (Lepidoptera: Tortricidae), pupal cases makes possible identification of normal budworm pupae and those containing Hymenoptera and Diptera parasites. The method, filming techniques, and radiographic-anatomic correlation are described. Kodak M and MA-2 film were equal in necessary image detail for identification purposes, but the M film did provide a slightly sharper and clearer image than MA-2 film. Polaroid P/N 55 film did not provide images adequate for identification.
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