【摘要】 在贵州省惠水县中联桔园(500亩)中,1987年和1989年分别释放56272头和95320头辐射不育柑桔大实蝇,释放比分别为12.5:1和45:1,使柑桔大实蝇虫果率由常年的5—8％下降到0.005％,防治效果十分显著。测得柑桔大实蝇可飞翔扩散1500米远。更多还原

【Abstract】 About 56000 and 95000 irradiated sterile males of Chinese citrus fly Dacus citri (Chen) were released in Zhonglian orange orchard of about 34 hectares in Huishui country, Guizhou province in 1987 and 1989 respectively. The release ratio of sterile to native fruit fly was 12,5:1 and 45 :1 respectively. The rate of damaged orange by Chinese citrus fly Dacus citri (Chen) dropped from 5-8% in general to 0.005%. The dispersal distance of the fly was estimated to be 1500 meters.更多还原