Studying the effectiveness of Jatropha carcus L. Extract as a repellent, antifeedant, and toxic substance against red palm weevil (Rhynchophorus Ferrugineus) adult insects in Saudi Arabia

Autor: Asmaa Alharbi, Ahlam Alanazi
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of King Saud University: Science, Vol 36, Iss 8, Pp 103322- (2024)
Druh dokumentu: article
ISSN: 1018-3647
DOI: 10.1016/j.jksus.2024.103322
Popis: Objective: Red palm weevil (RPW), Rhynchophorus ferrugineus, is a highly harmful pest that causes severe damage to date palm trees. The detrimental influence of RPW on date palm trees cannot be ignored and must be addressed. Chemical insecticides are available for controlling RPW; however, the insect population has become resistant to these chemicals, leading to damage and spread to new areas. The present investigation examined the impacts of physic nut (Jatropha curcas L.) seeds essential oils (PNEO) on laboratory-reared RPWs adult insects reared in a controlled laboratory environment. Methods: The insecticidal, repellent, and antifeedant potentials of different doses (10, 20, 30, 40, 50%) of PNEO were tested against RPW. The insecticidal activity of J. curcas seeds oil extracts was assessed using topical application and feeding methods. Results: RPW showed a high mortality rate when J. curcas seeds oil was applied topically after 24 h (P
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