茶小卷叶蛾颗粒体病毒大田应用研究

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

Study on the Utilization of Adxophyes Orana Granulosis Virus in Tea Plantation

Smaller tea tortrix(Adoxophyes orana F.& R.)is a serious pest in tea plantation.In 1979,a strain of granulosis virus with high virulence was isolated from the infectedlarvae on tea plant.In order to find out the possibilily of the use of AoGV and itstechnique of application,a series of field experiments were carried out in Hubei from1980 to 1983.The results showed that in the hatching stage of the first generation ofsmaller tea tortrix,a spray of 62.5 kg water containing 12.5-25 mg of preparedvirus suspension per mu may cause 87.5-93.8% of the larvae infected.Its effect maymaintain at least 16 generations in the range of more than 3 years.It is proved thatAoGV is of value in practical utilization.