紫胶虫Kerria lacca(Kerr)寄主植物至今主要是用来放养紫胶虫生产紫胶。紫胶枝即紫梗,一般都是集中长在树冠的上半部,收胶的时候,胶农必须把长有紫梗的二、三级枝条砍下来,才能进行剥胶。被伐枝条的大小因树种而异,小乔木的枝径一般为3-5厘米,大乔木有的粗达10厘米左右。由于大多数的紫胶 The lacca Kerria lacca (Kerr) host plant has so far been used mainly for stocking lac insect production shellac. Vulgaris branches that purple stems are generally concentrated in the upper half of the crown, when the plastic, plastic farmers must have a long purple stems II, III cuttings in order to stripping plastic. The size of the branches to be cut vary by tree species, branches of small trees is generally 3-5 cm, some large trees about 10 cm thick. Because of the majority of shellac