Toxicological Effect of Five Plant Oils Against the Tropical Warehouse Moth, Ephestia cautella [Lepidoptera: Pyralidae]

Volume 20 No 10 (2022)

Abdelfattah Abdelmagied Ahmed Khalaf, Mahrous Soliman Ghareeb, Enas Elsayed Nasr and Tasneem Mohamed Mohamed Eldahrawy

DOI: 10.14704/nq.2022.20.10.NQ55794

Abstract

Toxicological effects of five plant oils two fixed (black seed and cumin) and three volatile oils (clove, Ginger and Garlic) against eggs, larvae and adults’ stages of Ephestia cautella were studied. The results indicated that the mortality percentage increased with the increase of the concentration of both fixed and volatile oils on the all-tested development stages. Results indicated that the difference of sensitivity of Ephestia cautella to the oils treatment depending on the type of the developmental stage. In fixed oils, Black seed oil was more toxic against larva ana adult, but cumin oil was strong on the egg stage. In the case of volatile oils, Clove, Ginger and Garlic oils were more potent against egg, larvae and adult stage, respectively. The relation between the variation of the phytochemical structure of the tested oils and their toxicity were also studied and discussed.

Keywords

volatile oils, fixed oils, Ephestia cautella, phytochemical structure

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