Glyphosate, a widely used preplant herbicide in annual and perennial crops, was introduced to Sri Lanka in 1977. Its use has expanded since 2008 with the phase-out and ban in 2014 of paraquat. In December 2014, glyphosate use in Sri Lanka was regionally restricted. Crop protection and production in the country was severely affected in 2016 and 2017 due to the irrational decisions of the government of Sri Lanka (GoSL). Increased crop production costs due to the absence of effective and economically viable weed control techniques, low crop yields, loss of foreign exchange, and enhanced use of smuggled glyphosate products are the consequences of the glyphosate ban. The ban was imposed without a scientific basis because of sociopolitical pressure. A series of dialogues with the GoSL helped rescind the ban in 2018 for a period of 36 mo, but its use is limited to tea [Camellia sinensis (L.) Kuntz.] and rubber [Hevia brasiliensis (Willd. ex A. Juss.) Müll. Arg.]. In August 2019, the Cabinet of Ministers of the GoSL also decided to allow use of glyphosate to devitalize propagules in the floriculture industry (export oriented) and destroy coconut (Cocos nucifera L.) trees infected by Weligama coconut leaf wilt disease and sugarcane (Saccharum officinarum L.) infected by white leaf disease. However, glyphosate products with the co-formulant polyethoxylated tallow amine are still not permitted in Sri Lanka.

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禁止除草剂及其对农业的影响：斯里兰卡的草甘膦案例

草甘膦是一种在一年生和多年生作物中广泛使用的种植前除草剂，于 1977 年被引入斯里兰卡。自 2008 年以来，随着百草枯于 2014 年的淘汰和禁令，其使用范围扩大。2014 年 12 月，斯里兰卡的草甘膦使用受到区域限制。由于斯里兰卡政府（GoSL）的非理性决定，该国的作物保护和生产在 2016 年和 2017 年受到严重影响。由于缺乏有效且经济上可行的杂草控制技术，作物生产成本增加，作物产量低，外汇损失以及走私草甘膦产品的使用增加是草甘膦禁令的后果。由于社会政治压力，该禁令是在没有科学依据的情况下实施的。与 GoSL 的一系列对话帮助在 2018 年取消了为期 36 个月的禁令，茶树(L.) Kuntz.] 和橡胶 [巴西喜鹊(Willd. ex A. Juss.) Müll。参数]。2019 年 8 月，GoSL 内阁还决定允许使用草甘膦来灭活花卉业（出口导向）中的繁殖体，并摧毁感染 Weligama 椰子叶枯病病和甘蔗（Saccharum）的椰子（Cocos nucifera L.）树。 officinarum L.) 感染白叶病。然而，在斯里兰卡仍不允许使用含有助剂聚乙氧基化牛油胺的草甘膦产品。