Toxicological and Histopathological Effects of Lemongrass Oils on Oleander Aphids (Aphis nerii)
Year: 2024
Type: article
Abstract: This study investigated the potential of lemongrass oil as a natural insecticide against oleander aphids using microscopic analysis of treated specimens. The findings revealed progressive damage to the aphids' internal tissues over time, with increasing severity at higher oil concentrations. This damage included tearing of the exoskeleton, compromising their defense mechanisms, shrunken salivary glands and dilated midgut, indicating impaired feeding and digestion, and even separation of organs, suggesting widespread cell death. These results strongly support the toxic effect of lemongrass oil on oleander aphids and its potential as a dose-dependent insecticide. Further research is recommended to optimize application methods, minimize environmental impact, and elucidate the underlying mechanisms of action, including potential effects on the aphid cytoskeleton.
Source: Mansoura Journal of Biology
Authors: Sabah S. Ghazi, Mohamed F.A. Mansour, Hayder B. Ali
Institutions: Mansoura University, University of Baghdad
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W4413173560