Effectiveness of Chia Seed Plant Powder in Comparison with Malathion in the Control of Bean Weevils

Abstract

The primary objective of the research was to contribute to the control of storage pests in beans through the use of chia seed plant powder—an organic control method. The study adopted both descriptive and correlational research designs for data collection and analysis. It comprised: a survey of the chia seed farmers in Kyabugimbi sub-county, Uganda, for the purpose of assessing their perception concerning control of storage pests in beans through the use of chia seed plant powder; and an experiment for assessing the susceptibility of a variety of beans and pesticide application. The experiment had three bean varieties: NAROBEAN3, NABE16, and KAHURA. The type of pesticide had two treatments and control, that is, chia seed plant powder and malathion, and each had three levels. A control consisted of dishes with bean varieties infested with weevils without any pesticide added. Each set was comprised of control without any treatment. A total of 54 samples were used. These were laid out in a completely randomised Block design (CRBD) and replicated three times. Pesticides were applied at 0%, 50%, and 100% rates of application. Data were collected on the following measurements: Number of infested seeds, number of adult bruchids that emerged, and weight of seeds at the end of the experiment. The ANOVA test results found that the effect of pesticide application on the number of infested seeds, number of weevils that emerged, and weight of bean seeds was significant (P< 0.01), while the variety of beans was not significant. Although malathion had the lowest bean weevil figures and is therefore more effective in controlling bean weevils, it is a synthetic product, and chia seed would be promoted because it is an organic product because of being more friendly to the human body and the environment than malathion, a synthetic pesticide