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Ovicidal effects of four synthetic juvenile hormone analogues on the confused flour beetle, Tribolium confusum

Published online by Cambridge University Press:  19 September 2011

J. N. Mkhize
J. N. Mkhize
Affiliation:
University of Transkei, Private Bag XI, Umtata, Transkei, South Africa
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Abstract

Four synthetic juvenile hormone analogues (JHAs) with high morphogenetic activity on a variety of insects prevented embryonic development of Tribolium confusum to varying degrees when applied to freshly laid eggs. At 1 ppm (v/v) of the JHAs a few eggs hatched; however, some of the larvae died within a day of hatching. Older eggs were totally insensitive to JHA treatment even at higher concentrations. Larvae that hatched from these eggs appeared to be perfectly normal and continued to develop into apparently normal larvae.

Résumé

Quatre jeune hormone synthetique analogues (JHAs) avec la grande activite morphogenetique sur une varietes d'insectes ont empechent le development embryonique du Tribolium confusum au degre qui varie quand ont applique aux oeufsfrais. Au 1 ppm (v/v) des JHAs un peu des oeus ont eclos cependant quelques larve sont mortes en moins d'un jour d'eclosent. Les vieux oeufs n'ont pas sensible au traitement du JHA sans attention de la hauter concentrations. La larve qui est eclos des cette oeufs ont apparu etre normales et ont continues se developper la larva normale.

Keywords

Juvenile hormone analoguesmorphogeneticembryonicdevelopmentTribolium confusumLa jeune hormone analoguesmorphogenetiqueembryoniquese developperTribolium confusum
Type
Research Artilces
Information
International Journal of Tropical Insect Science , Volume 14 , Issue 3 , June 1993 , pp. 351 - 353
Copyright
Copyright © ICIPE 1993

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References

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