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近年来,我国南方稻区种植的水稻品种绝大多数对白背飞虱表现不抗虫,部分地区白背飞虱的虫量和危害超过了褐飞虱。以中稻受害最重,因为中稻的分蘖期至孕穗末正是白背飞虱产卵、为害的盛期。为了指导白背飞虱卵情调查和准确预报其发生量,1985年就白背飞虱产卵规律与水稻生育进程的关系,进行了初步观察,现将调查结果整理报道如下。
In recent years, the vast majority of rice cultivars planted in the rice planting areas in southern China are not resistant to whitebacked planthoppers, and the amount and harm of whitebacked planthoppers in some areas outnumber the brown planthopper. The most affected mid-bearing damage, because the tillering stage to the end of rice is the white-backed planthopper eggs, the damaging peak. In order to guide the white-backed planthopper egg survey and accurately predict its occurrence, the relationship between the oviposition behavior of white-backed planthoppers and the process of rice growth was investigated in 1985 and the findings are summarized as follows.