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SENSITIVITY OF ORYZAEPHILUS SURINAMENSIS (COLEOPTERA: CUCUJIDAE) TO CESIUM-137: I. IRRADIATION OF EGGS: THE EFFECTS ON HATCHING, SURVIVAL, AND FECUNDITY1

Published online by Cambridge University Press:  31 May 2012

S. S. Chawla ,
J. M. Perron ,
L. Huot  and
G.-W. Corrivault
S. S. Chawla
Affiliation:
Département de Biologie, Faculté des Sciences, Université Laval, Québec, Canada
J. M. Perron
Affiliation:
Département de Biologie, Faculté des Sciences, Université Laval, Québec, Canada
L. Huot
Affiliation:
Département de Biologie, Faculté des Sciences, Université Laval, Québec, Canada
G.-W. Corrivault
Affiliation:
Département de Biologie, Faculté des Sciences, Université Laval, Québec, Canada
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Abstract

Oryzaephilus surinamensis L. eggs in three age groups were irradiated with Cesium-137. Irradiation dosages of 15,480 rads did not affect the hatching of 48- to 72-hr-old eggs, though 24- to 48-hr-old eggs were more resistant than the 0- to 24-hr-old eggs. LD50 values measured as survival of 7-day-old larvae, however, showed that 48- to 72-hr-old eggs were more sensitive than 24- to 48-hr-old eggs. Dosages from 1935 to 2580 rads depressed the fecundity of adults emerged from irradiated eggs.

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Type
Articles
Information
The Canadian Entomologist , Volume 105 , Issue 2 , February 1973 , pp. 283 - 288
Copyright
Copyright © Entomological Society of Canada 1973

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References

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