小黑瓢虫是果树红蜘蛛的主要天敌之一。它是瓢虫中体形较小的一种。在越冬期间,是以成虫态,于树干老翘皮内与山楂红蛛蜘同栖越冬场所。到了来年四月下旬至五月上旬间,开始活动,分散于树冠中,在叶片上寻找红蜘蛛扑食,据室内初步观察,越冬代成虫平均每头日食量31.2～122头。将会有效地抑制红蜘 Small black ladybug is one of the main natural enemies of the fruit tree red spider. It is a smaller ladybug kind. During the winter, the state is adult, in the trunk of the old Alice inside the hawthorn spider spider mites habitat overwintering place. By the end of April next year to early May, activities began, dispersed in the canopy, looking for spider mite on the leaves to prey, according to preliminary observations indoors, overwintering adult adults average daily eclipse amount of 31.2 to 122. Will effectively inhibit the red spider