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The effect on reproduction and morphometrics of females of Culex pipiens L. of treatment of larvae with six insect growth regulators

Published online by Cambridge University Press:  27 March 2009

N. L. Kelada ,
I. A. Gaaboub  and
I. A. Rawash
N. L. Kelada
Affiliation:
Entomology Division, Plant Protection Department, Faculty of Agriculture, University of Alexandria, Alexandria, Egypt
I. A. Gaaboub
Affiliation:
Entomology Division, Plant Protection Department, Faculty of Agriculture, University of Alexandria, Alexandria, Egypt
I. A. Rawash
Affiliation:
Entomology Division, Plant Protection Department, Faculty of Agriculture, University of Alexandria, Alexandria, Egypt
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Summary

Six compounds which show juvenile-hormone-like (JH) activity (TH6040, JH-25, Altosid, Altozar, ZR-777 and ZR-619) were tested on larvae of Culex pipiens. The reproduction potential of the females obtained during two successive generations was not affected greatly, but there was a decline in pupation rate with some compounds. There seemed to be a direct relationship between the size of females of this species and treatment with JH compounds tested in the present investigation, since treatment with concentrations to inhibit the emergence of 10% or 50% of adults caused significant changes in the width of head, wing dimensions or length of hind legs.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 96 , Issue 3 , June 1981 , pp. 611 - 618
Copyright
Copyright © Cambridge University Press 1981

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