Fumigant Toxicity and Feeding Deterrent Activity of Essential Oils from Lavandula dentata, Juniperus procera, and Mentha longifolia against the Land Snail Monacha obstructa

Yasser Abobakr, Ali S. Al-Sarar and Maged S. Abdel-Kader
Additional contact information
Yasser Abobakr: Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
Ali S. Al-Sarar: Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
Maged S. Abdel-Kader: Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia

Agriculture, 2022, vol. 12, issue 7, 1-10

Abstract: Land mollusks are one of the most destructive agricultural pests worldwide, the management of which depends on synthetic molluscicides. However, many of these molluscicides are harmful to nontarget organisms. Hence, there is a need to develop alternative ecofriendly molluscicides that are less impactful toward nontarget organisms. So, an investigation into the fumigant toxicity and feeding deterrent effect of essential oils (EOs) from Lavandula dentata L. (Lamiaceae), Juniperus procera Hochst. (Cupressaceae), and Mentha longifolia (L.) Huds. (Lamiaceae) against the land snail Monacha obstructa (Pfeiffer, 1842) (Hygromiidae) was performed. L. dentata EO exhibited the highest fumigant toxicity with LC 50 values of 8.68 μL/L air and 7.24 μL/L air after 24 h and 48 h exposure periods, respectively. Its main components were camphor, 1,8-cineole, fenchone, and β -myrecene. The fumigant toxicity of J. procera EO was lower than that of L. dentata , with LC 50 values of 25.63 μL/L air and 20.11 μL/L air after 24 h and 48 h exposure periods, respectively. The major constituents of J. procera EO were α -pinene, p -cymene, and β -ocimene. The analysis of M. longifolia EO showed that pulegone, and menthol were the major constituents. However, it displayed no fumigant toxicity up to 50 μL/L air. The three EOs exhibited a strong feeding deterrent effect at sublethal concentrations. The EOs extracted from L. dentata , J. procera and M. longifolia are promising ecofriendly botanical molluscicides against the land snail M. obstructa .

Keywords: essential oils; land snails; molluscicidal activity; feeding deterrent activity (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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