he microclimatic niches of the two leaf mites and their predatory enemies consist of il-luminance,temperature and leaf moisture content,which were taken from 20 little localitiesof the crown of apple tree. The results of multivariate statistical analysis show:(1)The threeecological factors affect the mites and their enemies integrally,in which the combination oftemperature and leaf moisture is more important than other combinations of the three eco-logical factors,(2)The niches of each species contract rap...