Mosquito Larvicidal and Antibacterial Activities of Different Solvent Extracts of Anaptychia ciliaris subsp ciliaris

The goal of the research is to determine the antibacterial and insecticidal activities of lichen Anaptychia cifiaris subsp. ciliaris (L.) Korb. ex A. Massal. extracts (n-hexane and methanol) against some pathogenic bacteria and the mosquito Culiseta longiareolata Macquart larvae (Diptera: Culicidae). The extracts obtained from A. ciliaris subsp. ciliaris possess no antibacterial activity despite the use of higher concentrations (25x10(3) to 300x10(3) ppm). In mosquito larvicidal assays n-hexane extract showed higher activity than methanol extract. In the n-hexane solvent extract, the maximum mortality (97.5%) was recorded at a concentration of 2000 ppm after 120 h exposure. At the same concentration larvicidal activity of methanol extract was 20%. The present findings shows that tested Anaptychia ciliaris extract demonstrated moderate larvicidal effects. We therefore conclude that lichen extracts may be a useful source for the development of insecticidal products.