A Study on Afforestation and Utilization of Kusum as a Lac Host

Comparison research trial was conducted on Schleichera oleosa as lac host, including technology of seeding,afforestation, branch utilization and biological characteristics of Kerria lacca. The results showed that seed germination rate could be increased with the way getting rid of the capsule. Seedlings were raised in March and plant at the beginning of monsoon( It is about June and the first ten days of July in Yunnan province). The land suitable for the tree should be deep and loose soil and right drainage condition such as mid and low area of hillside. Afforestation effect could be better if the tree was planted at the south side of the hill. Young sapling could grow better with scarification and weeding and fertilizer superaddition. Schleichera oleosa was the best host tree for Kerria lacca and the output of lac was stable at winter and summer generations. It was also a favorable tree species for both keeping brood lac and for producing lac and it could be utilized by Kerria lacca once a year.