Assessment of Pesticide Residues in Organic Rice Production in The Mekong Delta, Vietnam

• DOI: 10.24018/ejdevelop.2022.2.3.95
• Publication Date: 2022-05-18T18:36:55Z
• Authors: Cong T. Nguyen; Thien T. Vo; Thanh X. Nguyen; Huu P. Nguyen; Dinh D. Bui; Van M. Nguyen; Van H. Duong
• Keywords: Propiconazole; Tebuconazole; Metalaxyl; Chlorfenapyr; Hexaconazole; Fipronil; Chlorothalonil; Acetamiprid

Organic rice production has been developed in Mekong Delta to reduce toxicity risk for humans and the environment, however, some models have failed due pesticide residues that were not investigated advance. So, it is important test prohibited residual pesticides organic farming. The samples ten districts of six provinces Delta, Vietnam, sampled analyzed check presence 854 substrates are use production. A total 18 active ingredients detected. Based on contamination rates, they divided into three groups. high group includes only tricyclazole (62.5%). medium difenoconazole (32.5%), chlorpyrifos-ethyl (30%), isoprothiolane (25%), propiconazole (20%), azoxystrobin (17.5%), hexaconazole (15%), chlorfenapyr cypermethrin (10%). low paclobutrazol (7.5%), tebuconazole (5%) seven remaining niclosamide, chlorfenson, fipronil, fipronil-desulfinyl, fenoxanil, metalaxyl & metalaxyl-M, chlorfluazuron with same rate (2.5%). present period, four four-year tricyclazole, difenoconazole, propiconazole. three-year chlorpyrifos-ethyl, isoprothiolane, hexaconazole, chlorfenapyr, cypermethrin. two-year paclobutrazol. one-year eight lowest as tebuconazole, chlorfluazuron. Among detected ingredients, there 8 substances used disease control, insecticides, 1 substance killing snails, growth regulation. This finding useful developing zones Delta.