Eucalyptus spp. (Myrtaceae), including E. urophylla, E. grandis and E. grandisvar, is one of the main species of fast-growing forest in Fujian province. It has some fine characteristics such as rapid growth, straight stem, short rotation and good quality, so it is a good material for paper making and building. The area of Eucalyptus spp. is more than 40000 hm2 only in the region of Zhangzhou and Longyan. However, the variety of insect pests and disease of the eucalyptus was increasing, and their damage to t...