Currently, the visitors who traveled to Suxianling landscape were little confused about the “infusion bottles”attached to the pine trees. It was learned that in order to prevent the trees from pine wilt disease and ensure all to be grown up healthily, the staffs of the forestry bureau attached a kind of medicine to the pine trees. As introduced by the staffs, pine wilt disease is a destructive infect to the pine trees with rapid transmission and high death rate, so it is called as “cancer”for the pine trees.