草履蚧又叫草鞋蚧壳虫,近几年在沂水县严重危害柿子、杏、核桃。经笔者调查,有80%的柿树产量下降,40%的柿树几乎绝产,2%的柿树死亡,并有连年加重的趋势。 革履蚧1年发生1代,以卵在树根附近的土缝中越冬,采用树上防治效果不大。从1992—1993年,我们喷药后7—10天仍有大量 Carassius auratus, also known as grass-caterpillar, has seriously endangered persimmons, apricots and walnuts in Yishui County in recent years. After the author’s investigation, 80% of the persimmon production decreased, 40% of the persimmon is almost absolutely dead, 2% of the persimmon died, and there is a trend of increasing year after year. Leather Kuwana occurred 1 generation a year, the eggs in the soil near the roots in the cracks in winter, the use of tree control effect is not. From 1992 to 1993, we still had a lot of fish 7-10 days after spraying