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蓝翅眼天牛Bacchisa atritarsisPic 是油茶树的主要钻蛀害虫。在中南、华东和西南等油茶产区分布普遍。成虫多选择10—20毫米直径的枝条产卵。初孵幼虫在枝条应部与木质部之间围绕树枝蛀食一圈。由于受害枝干组织受到刺激,被害处膨胀成结节状,轻者影响油茶生长和结果,重者易遭风折枯死。为探索对这一害虫经济有效的控制方法,笔者对幼虫空间分布型及用双重抽样组建回归直线预测式进行了调查研究。调查方法 1983年4—5月在溆浦县大江口(原中南林学院院址)油茶林内,选择不同坡向、不同管理水平,不同林龄的标准地7
Blue-winged eyeball Bacchisa atritarsisPic is the main borer pest of Camellia oleifera. In central and southern, east and southwest regions such as the distribution of camellia is widespread. Adults choose 10-20 mm diameter branches spawning more. The newly hatched larvae eaten around the branches between the branches and the xylem. As the affected branch organizations were stimulated, the victim inflated into nodules, light effects on the growth and the results of Camellia, severe cases are vulnerable to wind-induced death. In order to explore a cost-effective control method for this pest, the author investigated the spatial distribution patterns of larvae and regression line prediction using double sampling. Method of investigation From April to May 1983, in the oil tea plantation of Dajiang Kou (former Zhongnan Forestry College site) in Xupu County, the standard of different slope direction, different management levels and different ages was selected