论文部分内容阅读
在广东省稻田发生的稻飞虱主要种群有白背飞虱和褐飞虱，种群的变化与水稻品种布局的改变关系密切。７０年代主要种植感褐飞虱的常规稻，稻田以褐飞虱为主要种群，８０年代大面积推广种植感白背飞虱的杂交稻，稻田以白背飞虱为主要种群，９０年代优质稻种植发展迅速，区域性品种布局发生了变化，以种植优质稻、常规稻为主的地区稻田以褐飞虱为主，以种植杂交稻为主的地区，稻田以白背飞虱为主，三个品系均种植一定面积的地区，白背飞虱和褐飞虱交替出现为害，互为优势种群
The main population of planthopper occurred in the paddy field of Guangdong Province was BPPH and BPH. The population changes were closely related to the change of the rice variety. In the 1970s, the common rice plants were planted with Nilaparvata lugens (Nilaparvata lugens). The main rice planthopper was Nilaparvata lugens (Nilaparvata lugens), with a large area popularized in the 1980s to plant whitebacked planthopper hybrid rice, Regional species distribution has changed to grow high-quality rice, conventional rice-based areas of rice planthoppers dominated by hybrid rice-based areas, the main white -backed rice paddy plant, the three lines planted a certain area The whitebacked planthopper and the brown planthopper are alternated to appear as the dominant species and the predominant populations of each other