遵照毛主席“向社会作调查”的伟大教导,我们于1972年秋季,赴临沂、昌潍地区的临沂、莒县、日照、五莲、平度等八个县八处公社十三个生产大队果园和七个园艺场、圃,对主要果树病虫害的发生与防治技术进行了调查访问。 为了推动果树病虫的防治工作,现将我们这次调查的情况整理如 Following the great teachings of Chairman Mao’s “investigation into the community”, in the autumn of 1972, we went to Linyi, Lixian, Rizhao, Wulian and Pingdu counties in eight districts of Linyi and Changwei to set up 13 production units in eight communes Orchards and seven horticultural fields, nurseries, the main fruit pests and diseases occurred in the prevention and control technology were investigated and interviewed. In order to promote the prevention and control of pests and diseases in fruit trees, we now organize the situation in this survey