雷竹林地利用砻糠、木屑、稻草等覆盖物覆盖,可提早出笋,提高经济效益。可是近年竹区普遍采用旧的覆盖物重复利用,结果出现白蚁等虫害严重为害。竹农为了灭虫,采用呋喃丹等农药治虫,结果农药污染了竹笋,造成出口的雷笋罐头退货,经济损失巨大。余姚市三七市镇等地竹农采取茶籽饼(油茶籽榨油后的剩除物),每亩(1亩= Ray bamboo forest use bran, sawdust, straw and other coverings covering, early bamboo shoots can be raised to improve economic efficiency. However, in recent years, the common use of old bamboo cover repeated use, resulting in pests such as termites serious damage. Bamboo farmers in order to pest control, the use of carbofuran and other pesticides pest control, pesticide contamination of the results of bamboo shoots, resulting in exports of canned bamboo shoots return, a huge economic loss. Panax notoginseng town of Yuyao City to take tea seed cake (after the extraction of Camellia oil residue), per mu (1 mu =