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Evaluation of Insecticidal and Repellent Effects of Two Plant Extracts, Acacia and Neem Against Red Flour Beetle (Tribolium castaneum)

Year: 2025

Type: article

Abstract: Efficacy of neem (Azadirachta indica) and acacia (Acacia auriculiformis) extract was assessed on the basis of toxicity and repellency effects by red flour beetle. The study followed a completely randomized design with three replications. Plant extracts concentrations were 5%, 7.5%, and 10% and control (only solvent treated). The results revealed that neem leaf extract, particularly at 10%, exhibited the highest efficacy, showing 53.94% adult mortality and 49.99% repellency against red flour beetle. In contrast, 5% of the acacia leaf extract demonstrated the lowest mortality (23.09%) and repellency (26.53%). The effectiveness of both extracts increased with higher concentrations, neem showing superior activity compared to acacia. These findings suggest that neem leaf extract, especially at higher concentrations, could serve as a promising, eco-friendly alternative for controlling red flour beetle infestations in stored grains.

Source: Journal of Agroforestry and Environment

DOI: 10.55706/jae1822

Authors: M. M. Husain, Habiba Yasmin Lutfa, K. R. Das, M. Kamruzzaman, M. A. Topu

Institution: Bangladesh Agricultural University

Language: English

Topic: Insect Pest Control Strategies

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: diamond

OpenAlex ID: W4414156339