从肉桂双瓣卷蛾的卵上,找到螟黄赤眼蜂,经人工大量繁殖,1989～1991年在西江林业局属下富石场等11个林场4125亩肉桂林,共释放螟黄赤眼蜂19305亩次,每亩1万头,效果良好。3年来,肉桂春、夏、秋梢期卵粒寄生率有所提高,放蜂区为45.7％～76.1％,对照区为4.4％～26.1％;枯梢率显著下降,放蜂区为2.5％～33.1％,对照区为7.3％～42.6％。每亩增收80多元。 From the eggs of Cinnamomum anglica, we found Trichogramma ostriniae, which was multiplied by artificial population. From 1989 to 1991, there were 4125 mu of cinnamon forest in 11 forest farms including 11 rich forest farms under the Xijiang Forest Bureau. Bee 19305 acres, 10,000 acres per acre, the effect is good. In the past three years, the parasitism rate of ovule in spring, summer and autumn shoots of cinnamon was increased, with 45.7% -76.1% in the bee-feeding area and 4.4% -26.1% in the control area; the shoot rate was significantly decreased, ~ 33.1% in the control area and 7.3% ~ 42.6% in the control area. 80 yuan per mu income increase.