李始叶螨属蜱螨目螨科,是苹果、梨等果树的主要害螨,它还可危害杏、李、核桃等果树。若螨和成螨均可危害叶片和花芽,受害芽不能正常开绽,萎缩脱落;叶片受害,初期出现失绿斑点,严重时变成黄绿色,以至枯焦脱落,使树势衰弱,果实变小皱缩,品质 Lee beginning spider mite is Acaridae mite family, is the apple, pear and other fruit trees the main pest mites, it can also endanger apricot, plum, walnut and other fruit trees. If the mites and adult mites can endanger the leaves and flower buds, the damaged buds can not normally bloom, shrink and fall off; the leaves suffer, the initial appearance of green spots, yellowish green when serious, as well as Kujiao off, so that the weakness of the tree, the fruit becomes smaller Shrinkage, quality