Analysis reveals essential oil from Sideritis vulcanica impacts egg and hemocyte counts in Ephestia kuehniella and Cadra cautella, indicating potential for pest management.
Water distillation (hydrodistillation) was used as the extraction method to obtain essential oil from the aboveground organs of the Sideritis vulcanica species, an endemic species belonging to the Sideritis genus in the Lamiaceae family, which is a family very rich in secondary metabolites and active compounds. The chemical contents of essential oils were determined by GC and GC/MS analyses. As a result of the analysis, 41 components were determined in the essential oil. These components constitute 94.13% of the total oil. The essential oil yield in 100 g of dry sample was measured between 0.2-0.3 ml. As a result of our analysis, β-β-caryophyllene (17.80%), germacrene D (8.99%), and β-pinene (7.35%) were determined as the main components. According to these results, it was determined that Sideritis vulcanica Hub. Mor. essential oil applications were effective on the egg count and total hemocyte count of storage pests Cadra cautella Walker and Ephestia kuehniella Zeller. The observed differences indicate that the essential oil has a significant effect on the developmental biology and immune ability of the studied insects and may be useful and usable for future research on the practical management of this pest.
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