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我县早在1964年就发现少量的甘蔗飞虱为害甘蔗。近年来随着耕制的改革和品种的轮换,甘蔗飞虱的发生和危害日趋严重。其中高产的或生势较好、叶色浓绿的蔗地发生较多, “粤糖71/210”等品种受害最重。目前,全县发生面积约1万亩,占甘蔗总面积的6.25％。鉴于今后“粤糖71/210”、“65/1279”、“57/423”等感虫品种将不断推广种植,预计甘蔗飞虱的发生和危害会更严重。根据调查观察,在甘蔗飞虱中,我县甘蔗受甘蔗扁飞虱(Eoeury-sa flavacapiata Muir)的危害最普遍。
As early as 1964, our county discovered a small amount of sugarcane planthopper infestation on sugarcane. In recent years, with the reform of cultivated land and the rotation of cultivars, the occurrence and harm of planthopper planthopper become more and more serious. Among them, the high-yielding or better-off plants and the dark green leafy cane fields occurred more frequently. The varieties such as “YUE 71/210” suffered the most. At present, the county has an area of about 1 million mu, accounting for 6.25% of the total area of sugar cane. In view of the future promotion of planting varieties of “Yueshi 71/210”, “65/1279” and “57/423”, etc., it is estimated that the occurrence and harm of planthopper planthopper will be more serious. According to the survey, sugarcane in our county is most commonly endangered by Eoeury-sa flavacapiata Muir.