Local farmers use biological products to limit the use of pesticides i… stockbot 0 109 2021.12.04 09:00 http://vietnamnews.vn/society/1092056/local-farmers-use-biological-pro… + 3 https://vietnamnews.vn/rss/society.rss + 1 Local farmers in the central province of Hà Tĩnh have begun using biological products to limit the use of pesticides in agricultural production, to produce safer products and protect the environment.