一、历史情况的分析 我国西周时已有螟害记载。《诗·小雅·大田》:“去其螟螣,及其蟊贼,毋害我田稚。”当时我国农业中心在黄河中、下游,农作物以粟为主,水稻较少,所记螟害,可能是粟灰螟Chilotraeainfuscatellus(Snellen),稻螟的可能性较小。到宋朝,我国农业中心移至长江中、下游,稻麦两熟。《吴郡图经续记》载:“吴地沃而物夥,稼则 First, the analysis of historical situation Allelopathy has been recorded in the Western Zhou Dynasty. “Poetry Xiaoya Daejeon”: “Going to its borer, and its thief, no harm to my Tianzhi.” At that time, China’s agricultural center in the Yellow River, the lower reaches of the crop with millet-based, less rice, remember the stem damage , Probably Chilo borer Chilotraeainfuscatellus (Snellen), rice borer less likely. To the Song Dynasty, China’s agricultural center moved to the middle and lower reaches of the Yangtze River, rice and wheat two crops. “Legend of Wu Jun figure recorded” contains: "Wu Wo and the object, Jia is