Effect of insecticidal and Repellency of five essential oils on oryzaephilus surinamensis L.

غفوری‌پور, هاوژین and رفیعی دستجردی, هوشنگ and ناصری, بهرام and حسن‌پور, مهدی and مهدوی, وحید Effect of insecticidal and Repellency of five essential oils on oryzaephilus surinamensis L. In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

Essential oils of some herbaceous species have insecticidal properties on storage pests. In this research, in order to achieve a safe and sustainable way to storage pest management, the effect of insecticidal and repellency of five essential oils of cinnamomum verum L., Artemisia annua, Allium sativum L., Mentha pulegium L. and Vitex agnus L. were examined on adult of sawtoothed grain beetle in labratory condition (at 25 ° C ± 2 °C, 65 ± 5% relative humidity and 16 h light period). Herbal essential oils were extracted by water distillation using Klevenger's device. The results of the respiratory toxicity showed that mortality rate increased with increasing the concentration and duration of exposure to the essential oil. LC50 values of M. pulegium, c. verum, A. annua, V. agnus and A. sativum were 32.35, 93, 79.55, 95.65 and 12.9 μl/air, respectively. The highest mortality was related to A. sativum and M. pulegium, and the lowest was related to V. agnus. Repellecy effect increased with increasing concentrations of essential oils and the highest repellency effect was related to A. annua. Therefore, the results indicate that the essential oils of M. pulegium and A. sativum are highly effective and its use in controlling O. surinamensis is recommended.

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