Essential Oils: Useful Tools in Storage-Pest Management

This study aimed to verify the level of repellent and mortality effect of two chemical substances (DEET and 2-undecanone) and seven essential oils (EOs), , , , , , , and . The storage pests , , and were exposed to various concentrations in an olfactometer-and-mortality test. The effects were recorded 24-48-72 h after the treatments were applied. , , and were found to have significant repellence effects. A substantial lethal effect was observed for , , and . We also found that even if the most efficient EOs were diluted to low concentrations, they still produced repellent and mortality effects. The presented results indicate that and were the most effective against and simultaneously, and showed high activity against . All of these efficient EOs could be applied as effective bio-control agents in various stored conditions.