【作者】 刘辉； 王世平； 董树新； 王虎； 樊美珍；

【Author】 Liu Hui Wang Shiping Dong Shuxing Wang Hu (Agricultural Institute of Yan-an,Shanxi) Fan Meizhen (Norfhwest College of Forestry,Yan-ling Shanxi)

【机构】 陕西延安地区农科所； 西北林学院；

【摘要】 <正>桃小食心虫(Carposina niponensis Walsingham)是苹果产区的主要害虫。据陕北果区调查,年平均虫果率达30%以上,严重者达90%左右,影响苹果的产量和质量。为了有效地控制该虫为害,1988—1990年在陕北延安地区开展了绿僵菌防治桃小食心虫试验及示更多还原

【Abstract】 Conidial powder preparation of 2 strains of M.anisopliae,Ma83 and 3305,were used against the peach fruit borer,Car posina japonica,in apple orchards in Yan-an area from 1988 to 1990.Different dosages,15.0, 22.5,30.0,37.5,and 45.0 kg/ha,were tested.The result showed that high mortality was achieved with all treatments and the rate of bored fruit decreased to 5.3,3.8,3.7,2.7,and 1.25%,respectively,indicating a possibility of using the fungal preparation as an alternati ve of chemical insecticides for the peach fruit borer control.更多还原