Paper Key : IRJ************169
Author: Precious Mulenga
Date Published: 05 Apr 2025
Abstract
This study evaluates the effectiveness of Aloe Vera and Garlic as organic pesticides on Brassica napus (rape) plants, focusing on aphid control and plant growth. Conducted in Kitwe District, Copperbelt Province, the research used a randomized complete block design with three treatments: a control, Aloe Vera extract, and Garlic extract. Key parameters measured included plant height, number of leaves, aphid infestation, aphid mortality, crop yield, leaf damage, and disease symptoms over an 8-week period. Findings of the study revealed that both Aloe Vera and Garlic significantly enhanced plant growth and reduced aphid populations compared to the control. Garlic treatment resulted in the highest average plant height (33.2 cm) and crop yield (7.1 kg), while Aloe Vera also showed substantial improvements. Aphid mortality rates were significantly higher in the Aloe Vera (65.4%) and Garlic (72.8%) treatments compared to the control (15.2%). Both treatments also reduced leaf damage and disease symptoms effectively, with Garlic showing slightly better results. The study highlights the potential of Aloe Vera and Garlic as effective, environmentally friendly alternatives to synthetic pesticides. Their use can contribute to sustainable agricultural practices by minimizing chemical inputs, enhancing crop health, and protecting the environment. These findings support the integration of botanical pesticides into pest management strategies, offering a viable solution for smallholder farmers seeking sustainable pest control methods. Further research on the optimization and long-term effects of these treatments is recommended to maximize their benefits in agricultural systems.
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