我省川南稻区每年均有白背飞虱和褐飞虱的发生和危害,一般年份表现为6月迁入,7～8月份造成危害。但是,近段时间白背飞虱已在泸州、宜宾、自贡、广安和达州等地大面积危害,其迁入时间早、灯下虫量大、危害面积广、田间危害重,为近20年来罕见。一、稻飞虱的发生 The occurrence and harm of Sogatella furcifera and Nilaparvata lugewing (Nilaparvata lugens) each year are found in the paddy rice fields in southern Sichuan. The general year is shown as moving in June and causing harm in July and August. Recently, however, the white -backed planthopper has been widely reported in Luzhou, Yibin, Zigong, Guang’an and Dazhou areas and has been relocated for a long period of time with a large amount of insect pests and a large area of ​​harmful insect pests. rare. First, the occurrence of planthoppers