对茶小卷叶蛾（鳞翅目：卷蛾科）具有感染性的快速致死和慢速致死核型多角体病毒的田间药效及传播

Field efficacy and transmission of fast- and slow-killing nucleopolyhedroviruses that are infectious to Adoxophyes honmai (Lepidoptera: Tortricidae).

作者信息

Takahashi Maho, Nakai Madoka, Saito Yasumasa, Sato Yasushi, Ishijima Chikara, Kunimi Yasuhisa

机构信息

United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan.

Chiba Prefectural Agriculture and Forestry Research Center, Chiba 266-0006, Japan.

出版信息

Viruses. 2015 Mar 18;7(3):1271-83. doi: 10.3390/v7031271.

The smaller tea tortrix, Adoxophyes honmai (Lepidoptera: Tortricidae), is an economically important pest of tea in Japan. Previous work showed that a fast-killing nucleopolyhedrovirus (NPV) isolated from A. orana (AdorNPV) and a slow-killing NPV isolated from A. honmai (AdhoNPV) are both infectious to A. honmai larvae. Field application of these different NPVs was conducted against an A. honmai larval population in tea plants, and the control efficacy and transmission rate of the two NPVs were compared. The slow-killing AdhoNPV showed lower field efficacy, in terms of preventing damage caused by A. honmai larvae against the tea plants, than the fast-killing AdorNPV. However, AdhoNPV had a significantly higher horizontal transmission rate than AdorNPV. These results show that AdorNPV is suitable as an inundative agent, while AdhoNPV is an appropriate inoculative agent.

茶小卷蛾，即茶细蛾（鳞翅目：卷蛾科），是日本茶叶上一种具有重要经济意义的害虫。先前的研究表明，从橙卷蛾中分离出的快速致死核型多角体病毒（AdorNPV）和从茶细蛾中分离出的慢速致死核型多角体病毒（AdhoNPV）对茶细蛾幼虫均具有感染性。针对茶树中的茶细蛾幼虫种群，对这两种不同的核型多角体病毒进行了田间应用，并比较了这两种核型多角体病毒的防治效果和传播率。就防止茶细蛾幼虫对茶树造成损害而言，慢速致死的AdhoNPV的田间防治效果低于快速致死的AdorNPV。然而，AdhoNPV的水平传播率显著高于AdorNPV。这些结果表明，AdorNPV适合作为一种淹没式制剂，而AdhoNPV是一种合适的接种式制剂。