市果树科学研究所最近邀清原日本长野县植物防疫研究所研究长、植保专家广濑健吉先生,来烟考察讲学。广濑先生在烟期间,先后考察了福山、栖霞、招远、蓬莱等县区的果树生产和病虫防治情况,同各地的科技人员进行了广泛座谈。参观了市果树科学研究所。举办了讲学班,天津、青岛、济南、潍坊和本市的近40名科技人员参加了学习。他根据自己的经 City Fruit Science Institute recently invited Qingyuan Japan Nagano Plant Disease Research Institute, Phytosanitary Expert Kenji Hiroshi, came to smoke to study lectures. During his period of smoking, Mr. Hirose inspected the production and pest control of fruit trees in Fukuyama, Qixia, Zhaoyuan and Penglai counties, and held extensive discussions with scientific and technological personnel from different places. Visited the city fruit tree science institute. Held lectures, Tianjin, Qingdao, Jinan, Weifang and the city nearly 40 scientific and technological personnel participated in the study. He based his own experience