Table of Contents
Insects, Volume 10, Issue 6 (June 2019)
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Cover Story (view full-size image) The sustainable control of insect pests in stored products has received increasing attention and [...] Read more. The sustainable control of insect pests in stored products has received increasing attention and essential oils (EOs) could represent an effective and environmentally safe control method. Aromatic plants from megadiverse countries could be a source of new effective repellents or insecticides to be considered in IPM strategies. In this study, we investigated the repellent effect of the EOs extracted from two Clinopodium (Lamiaceae) species typical of Ecuador Andean flora against the maize weevil Sitophilus zeamais. The EOs were chemically characterized, tested for insect EAG responses and, finally, used in behavioural bioassays. The antennal sensory structures of the maize weevil were also described in detail. The tests showed that the Clinopodium EOs are perceived by S. zeamais via antennal olfactory sensilla and showed a clear repellent activity towards the weevil. View this paper