前言自本世纪五十年代以来,国内外都很重视苹果害虫的综合防治研究。开始是对主要害虫防治方法的简单综合,以后的重点逐渐转向对农药防治和生物防治的协调,近几年的工作则侧重于综合治理的研究,虽然在综合治理上取得不少进展,但从整体上看,运用生态学的观点开展综合治理研究还很不够。作者以西北农学院的苹果园为研究基地,运用生态学的观点,系统研究了四十七年 Preface Since the 1950s, domestic and international attaches great importance to the integrated control of apple pests. The beginning is a simple synthesis of the main pest control methods, and the later focuses on the coordination of pesticide control and biological control. In recent years, the work has focused on the study of comprehensive management. Although considerable progress has been made in comprehensive management, On the whole, it is still not enough to carry out comprehensive research using the viewpoint of ecology. The author uses the apple orchard of Northwest Agricultural College as a research base and uses the viewpoint of ecology to study systematically for 47 years