论文部分内容阅读
近年来,大连地区核果类果树蛀干害虫危害逐年加重,尤以桃红颈天牛为烈。据在甘井子区辛寨子、凌水、红旗、营城子乡调查,桃树被害率达83.3,有虫株率为75.9%。枯死株数占被害树的13%,锯掉两个大枝的占6.24%,产量损失达15.7%。樱桃被害致死及被害后染病死亡树占89.4%。过去,防治蛀干害虫多用棉球蘸“六六六”、“敌敌畏”药液堵塞虫孔的方法,因操作不便,效果不佳,我们于1983年春试用薰蒸剂“磷化铝”防治果树蛀干害虫,成本低,方法简便,效果良好。
In recent years, the pest damage of fruit trees in Dalian has increased year by year. According to Xinzhaizi, Lingshui, Hongqi and Yingchengzi Townships in Ganjingzi subproject, the peach tree damage rate reached 83.3 and the worm strain rate was 75.9%. The number of dead plants accounted for 13% of tree damage, sawing two large branches accounted for 6.24% yield loss of 15.7%. Cherries killed and killed after the death of infected trees accounted for 89.4%. In the past, the prevention and treatment of moth-dried pests and more cotton balls dipped in “BHC”, “dichlorvos” liquid blocking worm hole method, due to inconvenient operation, the effect is not good, we tested in the spring of 1983 fumigation agent “aluminum phosphide” Boring pests, low cost, simple method, good effect.