RELATIONSHIP OF LARVAL PHASE AND SUSCEPTIBILITY OF THE ARMYWORM, PSEUDALETIA-SEPARATA WALKER (LEPIDOPTERA, NOCTUIDAE) TO A NUCLEAR POLYHEDROSIS-VIRUS AND A GRANULOSIS-VIRUS
RELATIONSHIP OF LARVAL PHASE AND SUSCEPTIBILITY OF THE ARMYWORM, PSEUDALETIA-SEPARATA WALKER (LEPIDOPTERA, NOCTUIDAE) TO A NUCLEAR POLYHEDROSIS-VIRUS AND A GRANULOSIS-VIRUS
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DOI：
10.1303/aez.25.289
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发表时间：
1990-05-01
影响因子：
1.3
通讯作者：
YAMADA, E
中科院分区：
文献类型：
--
作者：
KUNIMI, Y;YAMADA, E
在实验室条件下，研究了粘虫幼虫对核型多角体病毒（PsNPV）和颗粒体病毒（GVH）的敏感性。随着饲养密度的降低，5龄幼虫对PsNPV的敏感性增强，经口接种后死亡时间缩短。对2龄幼虫经口接种GVH，隔离饲养的幼虫比拥挤饲养的幼虫更敏感。相对于在隔离和拥挤的条件下饲养的幼虫在整个幼虫阶段的易感性，已从隔离转移到拥挤的条件下，反之亦然，病毒管理后的幼虫有中间易感性PsNPV感染。拥挤饲养产生的浅色幼虫比深色幼虫稍敏感。对5龄幼虫注射PsNPV后，独居幼虫和群居幼虫的敏感性和死亡时间无明显差异。
Larval susceptibility in solitary and gregarious phases of Pseudaletia separata to nuclear polyhedrosis virus (PsNPV) and granulosis virus (GVH) was examined under laboratory condition. As the rearing density was decreased, larvae became more susceptible at the 5th instar and died within a shorter period when perorally inoculated with PsNPV. The larvae reared in isolation were more susceptible than those reared in crowded condition when the 2nd instar larvae were perorally inoculated with GVH. The larvae which had been transferred from isolated to crowded condition or vice versa after viral administration had intermediate susceptibility to PsNPV infection relative to the susceptibility of larvae reared in isolated and in crowded condition throughout the larval stage. The pale larvae produced from crowded rearing were slightly more susceptible than the dark larvae. No differences in susceptibility and time of death were observed between the solitary and the gregarious larvae when PsNPV was injected into the 5th instar larvae.