Selection of strains of Anopbeh atroparvus with different behaviour after contact with DDT
نویسنده
چکیده
At the Congresses on Tropical Medicine in Rio de Janeiro, several investigators have insisted on the problems connected mith the behaviour of Anopheles after contact with DDT. Though populations showing different responses to DDT could be distinguished by the Excite-Repellency Box Mode1 CIPS, nothing was Itnown wi,th regard tn the cause of these dserences. TO eluc.idate these problems we carried out a selection of AnophPles droparuzzs, based on DDT-irritability (fig. 1). Escaping or not-escaping from a horizontally placed tube, lined with paper impregnated with 1 yo DiD’T ‘in Riisella-o.il, was chosen as criterion for selection. The result of the selection is expressed by log : Percentage escaping fn Percentage escapingfo . Thus
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تاریخ انتشار 2000