宜都市位于鄂西南地区，柑橘生产历史悠久。近两年来，原来发生量极少的黑刺粉虱，在红花套、高坝洲等柑橘主产区愈来愈重。据调查分析，全市柑橘产区黑刺粉虱发生面积近 1 300 hm2，其中发生严重的达 200 hm2。宜都市植保站 2000年 9月 19～ 23日在红花套镇光明等村调查 50株? Yidu is located in southwest Hubei Province, citrus production has a long history. In the past two years, the blackfly whitefly that originally occurred in very small quantities has been getting heavier and heavier in the main citrus producing areas such as Honghuatu and Gaobazhou. According to the investigation and analysis, the occurrence area of ​​black spot whitefly in the citrus producing area in the whole city is nearly 1 300 hm2, of which serious occurs up to 200 hm2. Yidu Plant Protection Station 2000 September 19 ~ 23 in Honghua set the town bright village survey 50?