Abstract:
Chilli leaf curl is a major viral disease that affects chilli plants and causes significant yield
losses worldwide. Chemical pesticides have been widely used to control the disease, but
their negative impact on human health and the environment has prompted the search for
safer and more sustainable alternatives. In this study, the effectiveness was investigated
that of organic solutions made from Onion peels, Kohomba leaves, and Tobacco leaves
against chilli leaf curl. The experiment was conducted in a randomized complete block
design with four treatments and three replications. The treatments included three organic
solutions prepared from Onion peels, Kohomba leaves, and Tobacco leaves, and a control.
The results showed that all three organic solutions significantly reduced chilli leaf curl
symptoms compared to the control. Among the organic solutions, Kohomba leaf extract
showed the highest effectiveness in controlling the disease, followed by Tobacco leaf
extract and Onion peel extract. Furthermore, the organic solutions did not have any
negative impact on the plant growth and development. In contrast, the chemical pesticide
treatment had a negative impact on the plant growth and yield. These findings suggest that
Onion peels, Kohomba leaves, and Tobacco leaves could be used as effective and
sustainable alternatives to chemical pesticides for controlling chilli leaf curl. Further
research is needed to optimize the application methods and dosage of these organic
solutions for maximum effectiveness.
