considerations and field inspection (odour and presence of insects) were screened for
fumigant toxicity to Anopheles gambiae ss in the laboratory. Essential oils from 6 species
showed varying levels of toxicity, with Conyza newii (Compositae) and Plectranthus
marruboides (Labiateae) being the most potent. Fifty compounds representing∼ 74% of the
essential oil of C. newii were identified by GC-MS and GC-coinjection (for available …