BIOLOGICAL STRUGGLE AGAINST TWO HURMFUL INSECTS – BLATTELLA GERMANICA (BLATTELLIDAE) AND CULISETA LONGIAREOLATA (CULICIDAE) – USING EUPHORBIA BUPLEUROIDES (EUPHORBIACEAE)

Abstract

This study is topical and is of particular importance with the emergence and spread of vector- borne diseases in urban areas around the world, and in Algeria in particular. In this work we carried out a toxicological test on the larvae of two species namely Culiseta longiareolata and Blattella germanica which are considered harmful and can be carriers of many pathogens, with the use of the aqueous extract of the plant Euphorbia bupleuroides for a certain time, the results of toxicity give a toxic effect on the larvae determined at different lethal concentrations and sublethal (LC 50 % and LC 90 %).