Efficacy and Difference Growth, Development of Azadirachtin Against Spodoptera Litura (Lepidoptera: Noctuidae)
Year: 2025
Type: article
Abstract: A crop pest is any harmful organism that competes for essential resources such as nutrients, water, and sunlight. Azadirachtin, a tetranortriterpenoid derived from Azadirachta indica, has been widely used for its effectiveness in integrated pest management (IPM). This study assessed Azadirachtin’s impact on the mortality, growth inhibition, feeding behavior, and molting disruption of Spodoptera litura (S. litura). Conducted at the Biological Control Laboratory at Can Tho University, Vietnam, the study used artificial diet treatments on larvae collected from a cabbage field. Mortality rates increased rapidly with higher Azadirachtin dosages, reaching 90.7% by day 6 at 1463.10 ppm and 100% by day 12. At lower concentrations, mortality increased more slowly, with 48.3% at 731.55 ppm by day 6 and 35.0% at 365.78 ppm. Larval growth was also impacted, with the highest mortality showing minimal food consumption. Growth was better at lower doses, with larvae at 365.78 ppm growing from 8.35 mm to 14.38 mm. At concentrations of 365.78 ppm and 243.85 ppm, larvae exhibited moder-ate molting, but few reached the 5th instar or successfully pupated. Azadirachtin proves to be a sustainable, environmentally friendly alterna-tive to synthetic pesticides, reducing ecological impact while managing pest populations effectively.
DOI: 10.14419/wf43cr54
Authors: Xuan Thi Trinh, Hiep Pham Van, Son Pham Kim
Institutions: Can Tho University, Dong Thap University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W4415470757
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