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茶小卷叶蛾(Adoxophyes orana F.& R.)是为害新梢的一种重要害虫。1979年我省分离到一株对茶小卷叶蛾毒力较强的颗粒体病毒(AoGV),1980—1983年曾进行了一系列田间试验,以探明其用于生产防治的可能性及应用技术。试验结果表明,在茶小卷叶蛾第一代卵孵化期,应用低剂量 AoGV 常量喷布茶树(每亩用病毒12.5—25毫克,加水125斤),幼虫感染死亡率达87.5—93.8％。用病毒治虫不仅方法简便易行,而且持效期长,喷施一次可控制小卷叶蛾为害16代,持效达3年以上,充分发挥了病毒治虫的经济、有效、安全的优越性。
Adoxophyes orana F. & R. is an important pest that damages shoots. In 1979, a strain of granulovirus (AoGV) with strong virulence against the genus Tetraselmis was isolated in our province. A series of field experiments were conducted in 1980-1983 to find out the possibility of its application in the control of production and its application technology . The results showed that the tea larvae were infected with the low dose of AoGV (12.5-25 mg per acre virus and 125 kg of water) during the first egg hatching stage of the tea leaf roller. The mortality rate of larvae reached 87.5-93.8%. It is not only easy and feasible to use the virus for pest control, but also has a long lasting period. It can control the small leaf roller moth for 16 generations after spraying for more than 3 years, giving full play to the economic, effective and safe superiority of the virus pest control.