我区茶树一芽二叶(嫩梢)的害虫主要有小绿叶蝉、茶细蛾和茶橙瘿螨。近几年来由于盲目使用农药,既增加生产成本,还大量杀死害虫天敌,破坏了茶园生态平衡,从而使这些害虫更加猖獗。如大明山茶场每年喷药治虫十多次,有的山号喷药工占茶园管理工的比例逐年增加,由1975年喷药投工10次增加到1978年的19次;常规农药使用量也逐年增加,由1975年的2.87吨增加到1977年的8.74吨,平均每亩用药4.05斤,直至1978 My area tea a bud two leaves (tender tip) pests are mainly small green leafhopper, tea moths and tea orange scabies mites. In recent years, due to the blind use of pesticides, both to increase production costs, but also kill a large number of natural enemies of pests, undermining the ecological balance of the tea garden, so that these pests more rampant. For example, the Daming Mountain Chachang sprays insecticide more than 10 times a year, and some Yamaha spraying workers account for the proportion of tea plantation managers increasing year by year from 1975 to 10 times in 1978. The conventional pesticide use has also been increasing year by year Increased from 2.87 tons in 1975 to 8.74 tons in 1977, with an average of 4.05 pounds per acre until 1978