In addition, the Lacquer varnish is also an obstacle to the conservation because the varnish will be flowing out after puncturing and will be stopped the linking of tissue, rooting and destroying cell membranes which will be inhibited asexual reproductive such as; grafting and tissue culture. The staffs of Mae Huat Silvicultural Research Station tried to solve this problem by using brown sugar mixed with water scrubbing on the tapping mark but not successful now.