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2008年1月我国南方冰冻灾后,广西各柑橘产区对柑橘木虱越冬后的死亡率进行了普查。结果表明,广西冰冻灾后有虫面积缩小到1.83万hm2,同比减少63.7%,虫口密度同比减少86.4%～192.0%。抓住冰冻灾后柑橘木虱种群分布范围明显缩小、虫口基数明显降低的有利时机,精心组织,做好分区统一防治,对治好柑橘木虱,控制和扑灭检疫性病害柑橘黄龙病,具有重要意义。
After the freezing disaster in southern China in January 2008, the mortality rate of citrus psyllid overwinter in various citrus producing areas of Guangxi Province was investigated. The results showed that after the freezing disaster in Guangxi, the area of insects reduced to 18,300 hm2, a decrease of 63.7% as compared with the same period of last year, and the population density of pests decreased 86.4% to 192.0% year on year. It is of great significance to seize the favorable opportunity of citrus psylla population distribution after the freezing disaster and to reduce the base number of the insect population significantly, to organize well and achieve unified zoning control, and to cure citrus yellow louse, control and quarantine citrus Huanglongbing .