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香港科技大学广种观赏植物近300种,记录到植物害虫100余种,天敌17种。本文试从昆虫生态学观点阐明一个区域内控制害虫发生为害的策略性问题。对新开发的大面积农、林用地,先要查明该地区的害虫种类、为害植物和严重程度、发生消长情形,并查明重要天敌的寄主、种类、经济价值。以确定防治的重点对象,采取综合防治措施,达到控制害虫大发生目的。使用药剂是治虫的重要手段,要做到合理用药,首先要对害虫和天敌的发生期与发生量作深入调查分析,以确定防治时机和防治指标,通过选用高效低毒农药,把害虫数量控制在经济损失水平以下。
Hong Kong University of Science and Technology extensive ornamental plants nearly 300 species, recorded more than 100 kinds of plant pests, 17 kinds of natural enemies. This paper attempts to clarify from a insect ecology point of view the strategic problem of pest control in an area. For newly developed large-scale agricultural and forestry land, we first identify the types of pests in the area, the plants and the severity of occurrence, growth and decline, and identification of important natural enemies of host, species and economic value. To determine the focus of prevention and control, to take comprehensive prevention and control measures to achieve the purpose of controlling the occurrence of pests. The use of pesticides is an important means of pest control. To achieve rational use of pesticides, we must conduct an in-depth investigation and analysis of the occurrence and occurrence of pests and natural enemies in order to determine the timing of prevention and control as well as the prevention and control targets. By selecting high efficiency and low toxicity pesticides, Below the level of economic loss.