研究结果表明：麦岩螨种群密度与其寿命、繁殖、迁逃等关系密切，随着种群密度的增加，麦岩螨卵的孵化率降低，初孵幼螨死亡率增加，雌成螨繁殖力下降，寿命缩短，扩散迁逃率增加，其危害密度为每株小麦２０～４０头及其以下。防治指标为：返青期百茎螨量１４００头，危害指数为１％；拔节期百茎螨量６７００头，危害指数为６．５％。 The results showed that the population density of the rock mite population was closely related to its life span, reproduction, migration and so on. With the population density increasing, the hatching rate of the rock mite eggs decreased, the mortality of the newly hatched mites increased, and the fecundity of the female mites decreased , Life expectancy shortened, proliferation and evasion rates increased, the hazard density of 20 to 40 heads per plant and below. The control indexes were as follows: 1 400% of stem mites were returned to green during the rejuvenation period, the hazard index was 1%; the number of stem mites at the jointing stage was 6700, the hazard index was 6.5%.