通过调查分析腰果蛀螟的田间分布型,提出对腰果蛀螟的化学防治对策,最好在每年的3月中、下旬进行,或腰果的田间被害率为3～4％时开始,可获得较好的效果。人工处理被害果是腰果蛀螟综合防治的重要手段。对6龄以下的腰果园,在蛀螟化蛹盛期直接处理树头附近的土壤,可控制害虫的羽化率。为合理地减少田间调查工作量,可采用序贯抽样法来决定田间的喷药日期。 Through the investigation and analysis of the field distribution of the Cashew nutshell borer, the chemical control measures against the Cashew nutshell borer were proposed, preferably in the middle of March and the middle of each year, or when the incidence of cashew nuts in the field was 3 ~ 4% Good results. Manipulation of the victims of fruit is an important means of comprehensive prevention and treatment of Casuarina. On the 6th instar cashew orchard, the soil near the tree head can be treated directly during the moulting period, which can control the emergence rate of pests. In order to reduce the workload of field investigation reasonably, a sequential sampling method may be adopted to determine the spraying date of the field.