四川省资中县有95个公社,778个生产大队,108万亩耕地,主产水稻、玉米、小麦等。这个县是一个农作物病虫害多发地区,全县每年病虫危害面积均在120万亩以上,约占总播种面积的50％左右,仅1977年全县种植小麦41.3万亩,锈病、白粉病、赤霉病和蚜虫危害面积高达90％左右,靠手动喷雾器、人工捉、水枪打、纱布抖等办法,战斗100多 There are 95 communes and 778 production brigades in Zizhong County of Sichuan Province. There are 108 million mu of cultivated land and the main products are rice, corn and wheat. The county is a crop pest and disease-prone areas, the county annual pest and disease damage area are more than 1.2 million mu, accounting for about 50% of the total sown area, only 1977, the county planted 41.3 hectares of wheat, rust, powdery mildew, red Mildew and aphids harm area up to 90%, by manual sprayer, artificial catcher, water gun fight, gauze shaking and other methods, fighting more than 100