期刊论文

Huang, Guo-Hua

英文

昆虫科学(英文)

1672-9609

2021

28

5

1452-1467

10.1111/1744-7917.12875

The authors thank Dr. Madoka Nakai (Tokyo University of Agriculture and Technology, Saiwai, Fuchu, Tokyo, Japan) for generously providing Heliothis virescens ascovirus 3j isolate, and the American Journal Experts team (https://www.aje.com/) for editing and revising the English Language. This research was supported by the National Natural Science Foundation of China (31700141, 31872027) and Provincial Natural Science Foundation of Hunan (2019JJ50234), and Changsha Science and Technology Project (kq1901033), and Double first-class construction project of Hunan Agricultural University.

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Identifying novel biocontrol agents and developing new strategies are urgent goals in insect pest biocontrol. Ascoviruses are potential competent insect viruses that may be developed into bioinsecticides, but this aim is impeded by their poor oral infectivity. To improve the per os infectivity of ascovirus, Bacillus thuringiensis kurstaki (Btk) was employed as a helper to damage the midgut of lepidopteran larvae (Helicoverpa armigera, Mythimna separata, Spodoptera frugiperda, and S. litura) in formulations with Heliothis virescens ascovirus isolates (HvAV-3h and HvAV-3j). Btk and ascovirus mix...