Abstract:Dendroclonusarmandi,D. valens and D. micans are special pests of P. armandii in China, take a great de- struction to forest ecology. D. armandi is the pioneer pest of P. armandii, can be directly harm . D. valens and D. micans are quarantine pests , mainly harms weak trees , sometimes , can infect healthy woods . Because of the harm is hidden, it has caused death once found. The authors summarized the biological characteristics , adaptability and risk assessment of Den- droclonus , and based on the results , statistical and prediction analysized of the natural enemies of Dendroclonus , provided reference for further exploitation and utilization of natural enemy insects .