近十年来,褐稻虱在我国南方稻区的爆发频率很高,水稻穗期是其盛发为害的主要世代,也是预测调查的关键时期。在采用以卵发育进度为依据的发生期预测和以卵密度为依据的发生量预测时,过去由于不明水稻穗期褐稻虱产卵转位的规律,往往很难查到卵条,因而影响预测数据的可靠程度和预报结果的准确性。为了探明水稻穗期褐稻虱的产卵部位,我们进行了比较深入的调查,初步明确了产卵部位的转换 In the recent ten years, the outbreak frequency of brown planthopper in paddy areas in southern China is very high. The paddy stage is the major generation that is affected by its occurrence and is also a crucial period for forecasting. When using the prediction of the occurrence based on the progress of egg development and the prediction of the occurrence amount based on the egg density, in the past, it was often difficult to find out the egg bar because of the law of oviposition and translocation of the brown planthopper Predict the reliability of the data and the accuracy of the forecast results. In order to identify the spike stage of rice spawning sites of brown planthopper, we conducted a more in-depth investigation, initially identified the spawning site conversion