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Possible effects of the application of malathion on the small moth borer, Diatraea saccharalis (F.), and its parasite Lixophaga diatraeae (Tns.) in Jamaica

Published online by Cambridge University Press:  10 July 2009

P. D. Manser  and
F. D. Bennett
P. D. Manser
Affiliation:
Jamaica Sugar Manufacturers' Association Limited
F. D. Bennett
Affiliation:
Commonwealth Institute of Biological Control
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Extract

Investigations were undertaken in Jamaica to determine whether or not the application of malathion for the control of the West Indian cane-fly, Saccharo-sydne saccharivora (Westw.), disturbed the natural control exerted by Lixophaga diatraeae (Tns.) on its host Diatraea saccharalis (F.). It was demonstrated, by exposing caged adults of Lixophaga, that adults present in the field at the time of insecticidal application would be killed but because of the short residual action of malathion the reduction in the parasite population would only be temporary. A comparison of the degree of parasitism in sprayed and unsprayed fields did not reveal any evidence of reduction in the rate of parasitism. The extent of damage by Diatraea in sprayed fields was significantly less than in unsprayed ones and factors which might account for this are discussed.

Type
Research Paper
Information
Bulletin of Entomological Research , Volume 53 , Issue 1 , May 1962 , pp. 75 - 82
Copyright
Copyright © Cambridge University Press 1962

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References

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