The main pest: Macrotermes annandalei in black wings, which eats into pine sections, resulting the failure to grow and serious reduction of output.
Control method: try to avoid the ant source, clean away rotten tree root, dig a closed and circular ditch with the depth of 50cm and the width of 40cm to get rid of them, scatter lime water to the inner side of the ditch. It is feasible to arrange pits, then bury in pine or bagasse to trap and kill.