4—6月间,为什么伸展的新叶背面呈褐色油渍状锈斑? 此系一种肉眼难见的叶螨类为害,我省茶区多为茶橙瘿螨危害。成螨:为橙黄色或橙红色,形似胡萝卜、长约0.1毫米,有足2对。卵:乳白色、圆形、半透明。幼、若螨:初孵时乳白色,后渐变浅橙黄色,脱皮变若螨后,其后体段环纹较幼螨明显,有足 4 - 6 months, why the new leaves stretched brown rusty stains on the back? This is a naked eye spider mite damage, tea province in our province mostly orange scabies mite hazards. Into a mite: orange or orange red, shaped like carrots, about 0.1 mm, there are two pairs of feet. Eggs: white, round, translucent. Young, if the mite: first hatched milky white, after the gradient light orange yellow, peeling change if the mite, the body segment rings later than the larvae significantly, there are enough