Browsing by Author "Grace, Birungi"
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- ItemPesticide residues in vegetables produced in rural south-western Uganda(Elsevier, 2021) Hannington, Ngabirano; Grace, BirungiThis study investigated seven pesticides in vegetables produced in rural South-western Uganda to determine their suitability for human consumption. Pesticide residue concentrations (ppm) were determined using QuEChERS method, LC–MS/MS, GC–MS/MS and UV–Vis. Cypermethrin, dimethoate, metalaxyl, profenofos, malathion, dichlorvos and mancozeb concentrations detected in sprayed samples ranged between 0.00403 and 0.05350, 0.17478–62.60874, 0.12890–3.55681, 0.00107–0.59722, 0.03144–0.63328, 0.00240–0.34102 and 0.00001–0.00244, respectively. The residues exceeded MRLs in sprayed samples (59.52%), unsprayed samples (18%) and market samples (8%). The quality index of the market vegetables was found to be optimal (14.29%), good (75%), adequate (3.57%) and inadequate (14.29%). Pesticide residues may lower food quality and pose risk to human health. Therefore, regulation and monitoring pesticide residues in vegetables produced in southwestern Uganda in order to avoid harmful effects on human health would be paramount.
- ItemPesticide use in vegetable production in rural Uganda - A case study of Kabale District, South western Uganda(Academic Journals, 2020) Hannington, Ngabirano; Grace, BirungiA study to investigate commonly grown vegetables, commonly used pesticides, and pesticide use practices was conducted in Kabale District, in South-western Uganda. This is because indiscriminate pesticide use and poor application practices can leave pesticide residues in food rendering it unsafe for consumption. The study revealed extensive pesticide application in Brassica oleracea; var. capitata (cabbage), Brassica oleracea; var. botrytis (cauliflower), Solanum lycopersicum, (tomato) and Beta vulgaris (beet root). Information obtained using interviews revealed that 16.5% of the traders in Kabale Municipality sold pesticides and 70% of the farmers in the major vegetable growing subcounties of Kaharo, Kyanamira and Kamuganguzi sprayed their vegetables with pesticides. Only 18% of the interviewed farmers could interpret instructions on pesticide container or bag labels correctly. All farmers (100%) had never attended any training on pesticide use. Cypermethrin, dimethoate, dichlorvos, metalaxyl, profenofos, malathion and mancozeb were mentioned as commonly used pesticides in vegetables grown in the district. Some of the farmers (42%) used mixed different pesticides in the vegetables. Limited knowledge about pesticide application, inability to interpret instructions, non-observance of pre-harvest intervals, mixing pesticides and lack of training on pesticide use contribute to pesticide use malpractices which may put farmers’ health at risk and reduce food quality. Therefore, there is need to address the identified knowledge gaps on safer pesticide application in order to attain safe agricultural productivity for sustainable food security, safeguarding human health and community development in Kabale District, Uganda.