春季万物复苏,天气乍暖还寒,荔枝木毒蛾已悄悄开始孵化,因此要做好防治准备。木毒蛾属鳞翅目毒蛾科,可为害荔枝、龙眼、杨梅、芒果、木麻黄、茶树等多种作物。近两年在广西桂平市的部分荔枝果园大暴发,平均每张叶片有幼虫2~3头,每株树虫量达1万~2万头,整片果园叶子被吃光,严重影响产量,甚至造成绝收。一、发生规律该虫一年发生一代。3月上中旬幼虫开始孵化,3月下旬至4月初为幼虫孵化盛期,4月上旬至5月初为幼虫暴 Spring all recovery, the weather turns warm again, litchi wood moth has quietly started to hatch, so be prepared to prevent and treat. Wood Poison moth is Lepidoptera moth, can damage litchi, longan, red bayberry, mango, Casuarina, tea and other crops. In the recent two years, some outbreaks of litchi orchards in Guiping, Guangxi have resulted in an average of 2 to 3 larvae per leaf and an average of 10,000 to 20,000 pests per plant. The whole orchard leaves were eaten and the yield was seriously affected. Even caused absolutely. First, the law occurs The pest occurs a generation a year. The larvae begin to hatch in mid-March and the larvae hatch in late March to early April. The larvae burst from early April to early May