As last year drew to a close, a cold front descended on Taiwan, bringing temperatures to below 10 ° C. On the campus of National Chung Hsing University, a group of farmers undeterred by the cold pitched a tent from which they began to sell farm products. All the items sold that day had been developed by Dr. Tsay by using biological control methods, and all had passed inspection for pesticide residue.
歲末隆冬，當冷氣團以攝氏 10 度以下的低溫籠罩全台之際，國立中興大學校園在寒風中搭起帳棚，展售由蔡東纂所研發、採用生物防治法「蔡 18 菌」加「生物鈣」等方法施作，並經農藥殘留檢驗合格的農產品，以學院背書方式，為農民與消費者搭起互信的橋樑。