柑桔粉虱(Dialeurodes citri Ashm.)是柑桔的一种常见害虫,一般为害不重,但近年来我省南昌、临川、鹰潭等地一些桔园中,此虫猖獗成灾。1985年以来,我校青岚园艺场25亩温州蜜柑(19年生,栽植密度为3×3米)新叶受害率达90％,平均虫口密度每叶95头,严重的在300头以上,对柑桔产量与品质影响极大,1985、1986、1987年产量分别仅达1984年的13％、26％、39％。对于此虫的记 Citrus whitefly (Dialeurodes citri Ashm.) Is a common pests of citrus, generally not harmful, but in recent years in our province Nanchang, Linchuan, Yingtan and some other orange orchards, the worm rampant disaster. Since 1985, 25 acres of Wenzhou Satsuma mandarin (19 years old, planting density of 3 × 3 meters) new leaf damage rate of 90%, the average density of 95 insect per leaf, seriously more than 300, Citrus production and quality have a great impact, 1985, 1986, 1987, respectively, in 1984 the output was 13%, 26%, 39%. Remember for this bug