丽水地区木材厂,去春营造的20亩泡桐幼林遭受蛴螬为害,虽用六六六、滴滴涕等常用药剂进行防治,但效果不理想,仍有152株地下部分被吃光,造成近4亩幼林成片死亡。其它受害的泡桐幼树生长也普遍受到影响。 在生产实践中,我们发现蛴螬对氨水很 In the Lishui area, 20 mu of young Paulownia trees were destroyed in the Spring Spring. Although 666 and DDT were used for prevention and treatment, the effect was not satisfactory. There were still 152 underground parts being eaten, resulting in nearly 4 mu of young trees A piece of death. The growth of other sapling-affected saplings is also generally affected. In production practice, we found that ammonia is very harmful to ammonia