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Position: Home > Articles > Efficacy of Ectropis oblqua Nuclear Polyhedrosis Virus(EONPV)Preparation Journal of Tea Science 1991 (1) 39-44

茶尺蠖核型多角体病毒制剂的防治效果

作  者:
洪北边;殷坤山
单  位:
中国农业科学院茶叶研究所
关键词:
茶尺蠖;茶尺蠖核型多角体病毒;病毒制剂;生物防治
摘  要:
茶尺蠖核型多角体病毒(Ectropis obliqua nuclear polyhedrosis virus,简称 EONPV)的两种制剂 EONPV 2H_2 的 Lc_(50)为2.5×10~4 PIB/m1、EONPV 2H_4的Lc_(50)为2×10~4 PIB/ml,以1×10~7 PIB/ml的 EONPV 2H_2感染寄主3龄虫的 Lt_(50)为5.5天,EONPV 2H_4 的 Lt_(50)为5.7天。两制剂均有一定的防紫外光能力,对寄主的致病性强,室内试验校正死亡率都在96%以上,大田每亩用200亿 PIB,对第1、2、5(年发生5代区)和6代防治效果多在90%以上。在茶园中使用安全,对异色瓢虫等茶园天敌组织细胞的电镜检查,未发现有该病毒的多角体和病毒粒子,对单白绵绒茧蜂没有直接的致病性。
译  名:
Efficacy of Ectropis oblqua Nuclear Polyhedrosis Virus(EONPV)Preparation
作  者:
Hong Beibian;Yin Kunshan(Tea Research Institute,Chinese Acadcmy of Agricultural Sciences,Hangzhou)
关键词:
Ectropic obliqua;;EONPV;;Virus preparation;;Biological control
摘  要:
The LD_(50)of two preparations of EONPV(EONPV 2H_2 and EONPV 2H_4)on tea looper larvae were 2.5×10~4 PIB/mL and 2×10~4 PIB/mL respective-ly.By using the 1×10~7 PIB/mL EONPV 2H_2 and EONPV 2H_4 preparations,the LT_(50)of the 3rd instar tea looper larvae were 5.5 and 5.7 days respec-tively.Both preparations of EONPV possessed the UV-proof ability andpotent infectivity to the host.The corrected mortality in the experimentcarried out in lab were more than 96%.The efficacy of control on the 1st,2nd and 5th generations(the area with 5 generations per year)and the6th generation are more than 90% when 20 billion EONPV PIB/mL wasapplied in the field condition.The EONPV was proved to be safe for usein tea garden.Neither EONPV polyhedral bodies nor EONPV particlescould be found in the tissue cell of natural enemies of tea pests,for inst-ance Leis axyridis Pal.,under the electron microscope.No direct infectionoccurred to parasitic hymenoptera(Apanteles sp.).

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