Essential oil of Citrus limon Osbeck: An insecticidal natural product against Cryptolestes pusillus SchÖnherr

• Published in: Journal of Asia-Pacific entomology 2024, 27(1), , pp.1-5
• Main Authors: Jie, Yu, Shi, Tianyu, Yang, Dong, Zhang, Zhongjie
• Format: Article
• Language: English
• Subjects: adults; botanical insecticides; Citrus limon; Cryptolestes pusillus; Cryptolestes pusillus SchÖnherr; digestive tract; entomology; Essential oil of Citrus limon Osbeck; essential oils; fumigation; insecticidal properties; mechanism of action; mortality; oils; Plant-based insecticide; 농학
• ISSN: 1226-8615; 1876-7990
• DOI: 10.1016/j.aspen.2024.102203

[Display omitted] •C. limon oil exhibits significant fumigation toxicity against C. pusillus.•C. limon oil treatment led to vacuolization of nutrient cells in C. pusillus.•The active components responsible for C. limon oil’s activity include caryophyllene oxide and α-pinene. This study investigated the insecticidal activity and mechanism of action of essential oil from Citrus limon Osbeck (C. limon oil). The fumigation method was used to determine the insecticidal activity of different concentrations of C. limon oil against adult Cryptolestes pusillus (C. pusillus). In addition, the effect of C. limon oil on the organs of adult C. pusillus was studied. The results showed that when the concentration of C. limon oil reached 0.6 μL/cm3, following fumigation for 4, 8, 12, 16, 20, and 24 h, the corrected mortality rates of adult C. pusillus were 13 %, 30 %, 47 %, 95 %, 97 %, and 100 %, respectively. Furthermore, C. limon oil caused vacuolization in the digestive tract and adipose cells, thus, as a plant-based insecticide, it has strong research and application value.