草履蚧俗名树虱子。主要为害核桃、苹果、梨、桃等果树。近几年鲁西北地区苹果、梨树上发生严重,对果树开花、座果、新梢生长有很大影响。我们从1983年开始对该虫生活史进行观察及防治试验,其结果总结如下。 1.生活史在鲁西北地区草履蚧一年发生一代,以卵在树干周围1m左右处土壤裂缝深1.5～4.5cm处越冬。越冬卵从2月下旬开始孵化至4月 Grasshoppers scale name tree lice. The main damage to walnuts, apples, pears, peaches and other fruit trees. In recent years, apples and pear trees in northwestern Shandong have been seriously affected, which has a great impact on the flowering of fruit trees, fruit set and shoot growth. We started from 1983 on the life history of the pest observation and prevention and control test, the results are summarized below. 1. Life history In the northwestern region of Carassius auratus occur a generation a year, with eggs around the trunk about 1m at the depths of soil cracks 1.5 ~ 4.5cm at the winter. Overwintering eggs hatch from late February to April