Preliminary evaluation of anopheles mosquito larvicidal efficacy of mangrove actinobacteria.

Totally 30 actinobacteria isolates were screened for their larvicidal activity against Anopheles mosquito larvae. Of them four isolates producing strong larvicidal activity. These isolates were morphologically characterized and identified as the isolate CC17, SM13 as Streptomyces sp, isolate SH15 as Streptosporangium, isolate S22 as Micropolyspora. The present investigation clearly reveals the larvaicidal potentials of selected actinobacterial isolates in the Muthupet mangrove soil and sediments. To exploit these findings for humanwelfare, it is necessary to carryout field trial and strategies for optimizing of large scale production of cellbiomass and larvicidal compounds are suggested as future course of action.