European Journal of Experimental Biology Libre accès

Abstrait

Chemical composition and insecticidal activity of essential oil of Zataria multiflora Boiss. (Lamiaceae) against Ephestia kuehniella (Lepidoptera: Pyralidae)

Lena Emamjomeh, Sohrab Imani, Khalil Talebi, Saeid Moharramipour and Kambiz Larijani

This work aims to investigate chemical composition and toxic potential of Zataria multiflora essential oil on Ephestia kuehniella (Lepidoptera,pyralidae).The essential oil of dried leaves and flowers was extracted using Clevenger-type apparatus. The essential oil was analyzed by GC/MS.The major compounds were Thymul (26.32%)and Carvacrol (25.51%). Toxicity of this essential oil against Ephestia kuehniella was evaluated by fumigation method. The appropriate concentrations of essential oil were tested against adults and larvae at 27±1°C and 65±5% RH under dark conditions. Probit analysis showed that the LC₅₀ values for adults were 0.98 μl/l air and for larvae was 20.67 μl/l air. Results showed that Zataria multiflora has a potential toxicity against Ephestia kuehniella and could be useful for integrated pest management of Ephestia kuehniella.