稻飞虱的危害与防治牟定县新桥镇新桥办事处６７５５０１刘开生危害水稻的飞虱有三种，其中以白背飞虱为主，褐飞虱次之，灰飞虱最少。白背飞虱的危害特征是成虫和着虫群集在稻株下部取食危害，稻苗受害，先在叶鞘上出现许多水渍状黄白色小斑点，叶尖发黄，以后发展为褐色... Dangerous and control of planthopper Xinqiao Town, Xinqiao Town, Mouding County 675501 There are three kinds of planthopper that endanger rice, of which whitebacked planthopper is the mainstay, followed by brown planthopper and the least Laodelphax striatellus. The harm characteristics of Sogatella furcifera is that adult and insect swarms harbored the feeding in the lower part of the rice plant. The rice seedlings were harmed. Many spots of yellowish-white small spots appeared on the leaf sheath first, and the leaf tips became yellow and later developed into brown. .