Larvicidal potential of certain plant extracts of the family Lamiaceae against Anopheles subpictus (Diptera: Culicidae)

The present study was undertaken to check and compare the virtue of plant extracts in relation larvicidal activities against Anopheles subpictus. lethality toxicity methanolic aqueous Ocimum sanctum, basilicum, Leucas aspera Coleus amboinicus early 4th instar larvae A. subpictus were determined laboratory. All Lamiaceae showed moderate effect after 24 hours exposure as evidenced by low lethal concentration time varied crude extracts. mortality rate recorded LC50 determined. Larval between 80% 92% observed extract 60-85% selected species. highest activity obtained with methanol O. sanctum. findings have paramount implications practical control mosquito adults aquatic ecosystem medicinal plants studied are routinely accessible enormous quantities. These easy prepare, inexpensive, safe for which might be used directly agents small dimension habitats or breeding sites around human dwellings.