1965年春季,徐州专区麦蚜大发生,以赣榆、新沂、东海和邳县四个县发生较重。全专区发生面积达284万亩,占麦田面积的38％,约有100万亩遭到严重减产,其中有30万亩基本无收。为害高峰期从3月下旬一直延续到4月中旬,群众反映是二十多年发生最重的一年。 根据东海县病虫测报站在石榴、浦南两个公社定点调查:2月22日每市尺长麦垅内平均有蚜21.6头,3月1日上升至49.2头,18日上升到147.8头, In the spring of 1965, the wheat aphid occurred in Xuzhou area, with heavier occurrence in Ganyu, Xinyi, Donghai and Juxian counties. The area occurred an area of ​​284 acres, accounting for 38% of the area of ​​wheat fields, about 1000000 acres have been severely reduced, of which 300000 acres basically no income. Victims peak period from late March until mid-April, the masses reflect the heaviest year in more than 20 years. According to the Donghai Pest Report Station in Pomegranate, Punan two communes sentinel surveys: February 22 average per plait length of wheat scallops average 21.6, rose to 49.2 March 1, rose to 147.8 on the 18th ,