Resistance to Malathion in a Strain of Body Lice from Burundi13
- 1 February 1973
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 66 (1) , 118-119
- https://doi.org/10.1093/jee/66.1.118
Abstract
A strain of Pediculus humanus humanus L. from Burundi was colonized in the laboratory and adapted to feeding on rabbits. At the LC50 level, resistance to malathion was 37× in the F2 generation but decreased to 4× in the F14 generation. After being placed under malathion pressure in the F15 generation, resistance increased to 8× in the F23generation. In a substrain, separated from the original in the F15 generation and maintained without insecticidal pressure, malathion resistance decreased to 1× in the F23 generation at the LC50 level, but some resistance still existed at the LC00 level. Both strains showed a high resistance to DDT and lindane and variable patterns of cross-resistance to other insecticides.Keywords
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