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二斑叶螨是近几年在果树上新发生的一种螨类,体色灰绿或黄绿,体背两侧各有一个明显褐斑,故名二斑叶螨,因在肉眼观察下体近浅白色,所以也有农民俗称之为“白蜘蛛”。该螨主要在叶子背面为害,行动迅速活泼,为害初期在叶面出现许多失绿斑点,随为害加重,叶面大面积失绿呈灰色,变硬变脆,虫口密度大时可结网致使叶片卷曲,叶片干枯脱落。
Two-spotted spider mites in recent years in the fruit of a new species of mites, body color gray green or yellow-green body on both sides of each have a distinct brown spots, hence the name two spot spider mite, because the naked eye observation of the lower body Near the pale white, so there are also farmers known as the “white spider.” The mite damage is mainly on the back of the leaves, the action is quick and lively. During the early stages of damage, many green spots appear on the foliage. With the aggravation of the damage, the large area of the foliage is gray and hardened and brittle. When the density of the insects is high, Curly, dry leaves off.