栗链蚧在我省一年发生两代 ,以受精雌成虫越冬。 5月中旬和 7月中旬分别为第 1代和第 2代若虫孵化盛期。结合冬季修剪和株施 1kg饼肥 ,虫情指数下降率比对照增加 50 .3% ;采用 2 5倍松碱合剂喷干 ,防治效果达 85.5% ;首次在国内采用 10 0 0倍英国产 4 4 %速凯乳油 ,分别于第 1代和第 2代初孵若虫盛期喷雾防治栗链蚧取得成功 ,防治效果达 97.5% ,基本上控制了栗链蚧为害 Calyx insects occurred in our province two generations a year to female adults wintering fertilization. The mid-May and mid-July were the first generation and the second generation of nymphs hatch peak. Combined with winter pruning and 1kg cake fertilizer, the declining rate of insects index was increased by 50.3% compared with the control. Sprayed with 25 times the dosage of pine-cassia mixture, the control effect reached 85.5%. For the first time, the domestic use of 10 0 times the British 4 4 % Suckay EC, respectively, in the first and second generation of nymphs nectar spraying spray prevention and control of the success of chestnut scale scale, the control effect of 97.5%, basically controlling the scale damage