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草履蚧在陕西１ 年发生１ 代，一般情况下越冬卵孵化盛期为２ 月中下旬，若虫２ 月中旬至３月下旬上树危害，雌成虫４ 月下旬至６ 月中旬下树，下树雌虫在树干周围的地面杂物下、土缝、疏松土层内产卵越夏和过冬。蚧虫卵在树冠下土壤中的分布规律、分布量与距树干的距离远近有关，集中分布于距离树干６０ ｃｍ 范围内地面以下０～５、６～１０ ｃｍ 的土层中。以土壤中草履蚧的卵量作为该虫的防治指标时，指标值确定为树冠下在离树干６０ ｃｍ 范围内、０～１５ ｃｍ 土层中１００ ｃｍ ２ 面积下有卵（８～１０）±２ 粒
Grasshoppers in Shaanxi 1 year occurred 1 generation, under normal circumstances, the peak of winter eggs hatch in late February, nymphs from mid-February to late March on the tree hazards, adult female from late April to mid-June under the tree, under the tree Females in the trunk around the ground debris, soil seams, loose soil spawning summer and winter. The distribution pattern and distribution of scale insects in the soil below the canopy are related to the distance from the trunk and are concentrated in the soil layers 0 ~ 5, 6 ~ 10 cm below the ground within 60 cm of the trunk. When the amount of eggs of C. sinensis in the soil was taken as the control index, the index value was determined to be within the range of 60 cm from the tree trunk under the canopy and from 8 to 10 ± 100 cm under the 0-15 cm layer 2 tablets