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Laboratory studies on the potential of three insect growth regulators for control of the tsetse fly, Glossina morsitans morsitans Westwood (Diptera: Glossinidae)

Published online by Cambridge University Press:  10 July 2009

A. M. Jordan ,
M. A. Trewern ,
A. B. Bořkovec  and
A. B. DeMilo
A. M. Jordan
Affiliation:
Tsetse Research Laboratory, University of Bristol, School of Veterinary Science, Langford, Bristol BS18 7DU, UK
M. A. Trewern
Affiliation:
Tsetse Research Laboratory, University of Bristol, School of Veterinary Science, Langford, Bristol BS18 7DU, UK
A. B. Bořkovec
Affiliation:
Insect Chemosterilants Laboratory, Federal Research, Science and Education Administration, Beltsville, Maryland 20705, USA*
A. B. DeMilo
Affiliation:
Insect Chemosterilants Laboratory, Federal Research, Science and Education Administration, Beltsville, Maryland 20705, USA*
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Abstract

Experiments were carried out to determine the effects of the insect growth regulators (IGRs), diflubenzuron and two of its analogues, on adult female Glossina morsitans morsitans Westw. The most effective method of dosing was by topical application, and less pronounced effects followed tarsal contact with treated surfaces and contact during mating with treated males. The compounds had no effect on female length of life or the number of offspring produced, but following topical application at 0·5 μg/female or above, most offspring produced throughout reproductive life (more than 100 days) failed to pupariate. Little difference was detected between the effects of the three IGRs tested. Following the application of diflubenzuron to oviparous insects, egg hatch is inhibited; it is suggested that in the larviparous tsetse fly such compounds act by inhibiting the biosynthesis of chitin at the time of pupariation. IGRs show promise as potential agents for the control of Glossina in the field, and the quantities required would probably not exceed the quantities of insecticides used in current operations against tsetse flies.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 69 , Issue 1 , April 1979 , pp. 55 - 64
Copyright
Copyright © Cambridge University Press 1979

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