DDT-Susceptibility Status of Malaria Vector Anopheles Balabacensis Balabacensis Baisas (Diptera : Culicidae) in Bangladesh

DDT – susceptibility tests on Anopheles balabacensis balabacensis Bt’I.ist’l.sct’l.rriedout during se.vcmlyears especially during 1979 ?t1d 1980 in Sylhet.district have been reported. The LC50 value for 1980 W?’>found to be 0.88::1:S.E.0.02 showing 2.38 fold increMe of tolerance from 1970 (LC50 =0.37:f: S.E.0.07). The species is still found to be f>usceptiblt:to DDT in Bangladesh…

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