论文部分内容阅读
我省防治农作物病虫所采用的主要手段是化学农药防治、农业技术防治、生物防治(主要是自然天敌利用)和物理防治(主要是黑光灯诱虫)四种。而六十年代以后,化学农药防治一直处于偏重的地位,其在防治病虫害中所取得的成绩是显著的。1970年前,大约每投资1元钱的农药,增加农产品价值3.8～5.8元,高的达7.5～11.0元。据1971年统计,我省每亩农药使用量,超过西德、美国、苏联,仅次于日本,居世界第二位。化学农药防治作为一项救急措施,在今后的病虫害综合防治的体系中,仍将会占有不可忽视的地位。
The main measures used in the prevention and control of crop pests in our province are four kinds of chemical pesticide control, agricultural technology control, biological control (mainly the use of natural enemies) and physical control (mainly black light trap). Since the 1960s, the control of chemical pesticides has been in a strong position, and its achievements in pest control are remarkable. Before 1970, about 1 yuan per pesticide investment, increase the value of agricultural products 3.8 to 5.8 yuan, up to 7.5 to 11.0 yuan. According to statistics in 1971, the amount of pesticide used per acre in our province surpassed that of West Germany, the United States and the Soviet Union, ranking the second in the world after Japan. As an emergency measure, chemical pesticide control will still occupy a place that can not be ignored in the future integrated pest management system.