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Sterilization of the Carrot Rust Fly by Irradiation With Cesium137*

Published online by Cambridge University Press:  31 May 2012

R. J. McClanahan
R. J. McClanahan
Affiliation:
Entomology Laboratory, Research Branch, Canada Department of Agriculture, Chatham, Ontario
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Abstract

Laboratory studies were conducted with the carrot rust fly, Psila rosae (Fabricius), to determine the effect of irradiation on reproduction. Irradiation of 15-day-old pupae with 1.4, 2.8 and 4.3 kiloroentgens did not adversely affect emergence. Treated females caged with normal males laid a few sterile eggs when the treatment was 1.4 kr. but none at the higher doses. Normal females caged with treated males laid a normal complement of eggs, and the per cent hatch was 10, 2 and 0 with treatments of 1.4, 2.8 and 4.3 kr., respectively. When flies of both sexes from pupae treated at 3.0 kr. were mixed with normal flies in a ratio of 6:1, the number of larvae were reduced by 93%.

Type
Articles
Information
The Canadian Entomologist , Volume 97 , Issue 10 , October 1965 , pp. 1042 - 1045
Copyright
Copyright © Entomological Society of Canada 1965

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References

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