据调查,我省每年受虫害损失的茶叶约占全年产量的15—20％。虫害严重的茶园,茶树的芽叶被吃光,造成无收。因此,必须密切注意茶树害虫发生的情况并及时进行防治,才能保证茶叶丰产丰收。下面介绍几种茶树常见害虫的防治方法。一、茶毛虫:俗称摆头虫、毛大虫。幼虫呈黄褐色,全身密布毒毛,背上有四行黑毒毛,中间二行较粗。我省茶毛虫一年发生两代。第一代幼虫4月上旬出现,成群爬在茶树枝梢上咬食茶叶,吃光一株后又转到另一株继续危害。到6月上旬幼虫长到3—6分长时,即在茶树下土中结茧化蛹,6月下旬变成蛾子(成虫),在茶叶背面产卵。7月上旬卵孵化为第二代幼虫,危害秋茶。9月上旬又结茧化蛹,下旬变成虫,在茶树老叶背 According to the survey, the annual loss of tea by pests in our province accounts for about 15-20% of the annual output. Pests serious tea plantations, tea tree buds were eaten, resulting in no income. Therefore, we must pay close attention to the occurrence of tea pests and timely prevention and control, in order to ensure high yield of tea harvest. The following describes several kinds of tea pest control methods. First, the tea caterpillars: commonly known as swing worms, hair worms. Larvae were brown, the body covered with dense hair, back four black toxin, the middle two thick. Tea caterpillars in our province occur two generations a year. The first generation of larvae appeared in early April, climbing in groups of tea leaves on the shoots, eating one and then to another strain to continue to harm. When the larva grows to 3-6 minutes long in early June, the pupal cocoon turns into a pupa in the soil under the tea tree and turns into a moth (adult) in late June, laying eggs on the back of the tea. Eggs hatch in early July as the second generation larvae, endangering autumn tea. In early September and cocoon pupation, late into worm, old leaves in the tea tree