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xenopsylla brasiliensis

International Journal of Tropical Insect Science (1)

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1 results

Larvicidal effects of neem, Azadirachta indica on fleas in Tanzania
B. S. Kilonzo
Journal:

Insect Science and Its Application / Volume 12 / Issue 5-6 / December 1991

Published online by Cambridge University Press:

19 September 2011, pp. 699-702

Print publication:

December 1991
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Fourth instar larvae of laboratory-reared, Ctenocephalides felts and Xenopsylla. brasiliensis were exposed to 50% neem seed kernel extract (NSKE) for periods varying from 30 min to 24 hr. Mortality of larvae was observed from exposure periods of 2 hr and above in both species. At 24 hr exposure, 95.3% and 94.7% of C.felis and X. brasiliensis respectively were killed. LT50s were approximately 6 and 10.5 hr for C.felis and X. brasiliensis respectively. It was generally concluded that neem seed kernel extract was potentially larvicidal against the two flea species and that it could be effectively used for controlling the insects by properly dusting the latter's breeding sites with appropriate concentrations of the extract.