Efficacy and Cost-Benefit Analysis of Indigenous Technical Knowledge versus Recommended Integrated Pest and Disease Management Technologies on Common Beans in South Western Uganda
The common bean is the second most important food
and third economically important crop after banana and coffee in the South
Western Agro-Ecological Zone of Uganda. Farmers’ returns to investment in bean
production are consistently negative mainly due to losses resulting from
collective effects of insect pests and diseases that cause damages at the
various plant growth stages. This research study was carried out to 1) identify the major insect pests and diseases
affecting the common beans in the zone; 2) test
and compare the performance of the local/traditional practices versus
integrated pest and disease management (IPDM) technology combinations; 3) determine the yield performance of improved varieties
under the different pest control practices; 4)
evaluate the profitability of the different pest and disease management
practices. Results showed that cutworm, thrips, aphid and defoliating beetles
were the major insect pests, while angular leaf spot, ascochyta blight,
anthracnose and the bean common mosaic virus (BCMV) were the major diseases.
Improved varieties managed with the recommended IPDM technology combination
were more protected compared to the farmers’ indigenous practices. The climbing
varieties had significantly higher yield (3.4 t/ha) than the local bush variety
(1.2 t/ha). Consequently, the application of indigenous practices resulted in
negative returns to investment while the combination of research recommended
technologies including judicial inorganic pesticide application led to positive
returns to investment in bean production. The marginal rate of return (MRR) of
IPDM technologies including inorganic pesticides was two times greater,
implying that integration of improved variety with recommended agronomic crop
management technologies plus judicial chemical application is economically
feasible for increased common bean production in South Western Uganda.
Cite this paper
Kankwatsa, P. (2018). Efficacy and Cost-Benefit Analysis of Indigenous Technical Knowledge versus Recommended Integrated Pest and Disease Management Technologies on Common Beans in South Western Uganda. Open Access Library Journal, 5, e4589. doi: http://dx.doi.org/10.4236/oalib.1104589.
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