Olfactory Response of Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae) to Volatile Aqueous Extracts of Plant Origin Applied to Elephant Grass Plants (Pennisetum purpureum Schum)

In this study, we evaluate the olfactory responses of Mahanarva spectabilis adults to aqueous extracts from following non-host plants for pest insect: garlic (Allium sativum L.), rue (Ruta graveolens cinnamon (Cinnamomum verum J. Presl), lemongrass (Cymbopogon citratus Stapf.), clove (Syzygium aromaticum star anise (Illicium Hook.f), eucalyptus (Eucalyptus globulus Labill.), tobacco (Nicotiana tabacum and thyme (Thymus vulgaris L.) applied host plant, elephant grass (Pennisetum purpureum Schum.). The bioassays were performed using a Y olfactometer, combinations plant tested against fresh air without extract. results show that non-attractive M. adults. remaining did not alter response plant.