Essential oils for the development of eco-friendly mosquito larvicides: A review

Considering the above-estimated LC50 value as the main criterion of efficacy, 77 showed LC50<50 ppm. Some of these efficient EOs were obtained from aromatic plants also grown commercially on relatively large areas, with a good technology of cultivation (e.g., Pimpinella anisum, Coriandrum sativum, Foeniculum vulgare, Mentha longifolia, Ocimum basilicum, Thymus spp., Eucalyptus spp., Piper spp., etc.). Such plants could become a suitable source of active substances for potential botanical larvicides. Only seven plants (Blumea densiflora, Auxemma glazioviana, Callitris glaucophylla, Cinnamomum microphyllum, Cinnamomum mollissimum, Cinnamomum rhyncophyllum, Zanthoxylum oxyphyllum) can be considered significantly most efficient, given that LC50<10 ppm has been estimated for their EOs. These EOs contained less common substances, predominantly from the group of sesquiterpenes, aromatic acids and ketones.