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Aircraft applications of insecticides in East Africa. XIX. A comparison of two sampling techniques for assessing the effectiveness of pyrethrum applications on Glossina pallidipes Aust.

Published online by Cambridge University Press:  10 July 2009

C. S. Tarimo ,
C. W. Lee ,
J. D. Parker  and
H. T. Matechi
C. S. Tarimo
Affiliation:
Tropical Pesticides Research Institute, Arusha, Tanzania
C. W. Lee
Affiliation:
Tropical Pesticides Research Institute, Arusha, Tanzania
J. D. Parker
Affiliation:
Tropical Pesticides Research Institute, Arusha, Tanzania
H. T. Matechi
Affiliation:
Tropical Pesticides Research Institute, Arusha, Tanzania
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Extract

An experiment was carried out in 1968 in the Lossitete Forest area of northern Tanzania to compare the fly-round and the Langridge-trap as sampling techniques for assessing the effectiveness of 0·4% pyrethrum applications on Glossina pallidipes Aust. when applied from the air. From fly-rounds, population reductions of 64%, 36% and 29% after the first, second and third applications, respectively, were estimated, whereas from Langridge traps the reductions were 11%, 7% and nil, respectively. Taking into consideration the efficiency of the Langridge-trap and the limitations of the fly-round in sampling G. pallidipes populations, it is concluded that the fly-round may give a false assessment of reduction of G. pallidipes after insecticide application.

Type
Research Article
Information
Bulletin of Entomological Research , Volume 60 , Issue 2 , December 1970 , pp. 221 - 223
Copyright
Copyright © Cambridge University Press 1970

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References

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