于 2 0 0 0年至 2 0 0 1年在广西北流进行了释放荔蝽卵平腹小蜂防治荔枝蝽的田间试验。第 1年放蜂 2次 ,荔蝽卵平腹小蜂寄生率为 82 .5 % ,第 2年在放蜂量减少一半的情况下 ,荔蝽卵平腹小蜂寄生率为 48.3 % ;自然天敌荔蝽卵跳小蜂寄生率 2 a分别为 11.8%和 2 2 .5 % ;处理区的残存荔枝蝽若虫 2 a均为 2头 /株 ,而对照区的残存荔枝蝽若虫第 1年为 2 9头 /株 ,第2年达 90头 /株。试验显示 :处理区荔枝蝽若虫数量显著降低 ,荔蝽卵平腹小蜂能有效地控制荔枝蝽的危害 A field trial was conducted to release litchi stinker wasps in 2001-2001 in Beiliu, Guangxi. In the first year, the bee pollination was carried out twice and the parasitism rate was 82.5% in the second stage. In the second year, the parasitism rate was 48.3% The parasitism rate of the natural enemy Eupolyphaga ovipositione larvae was 11.8% and 22.5%, respectively. The remaining 2 instar larvae of the litchi stinkbug were 2 per plant in the treatment area, while the first year in the control area was 1 29 plants per plant in the second year reached 90 plants per plant. The results showed that the number of Lygus nymphs in the treated area was significantly reduced,