Toxicity difference of EoNPV of two sibling species of tea genometrids

doi:10.3969/j.issn.1004-1524.2020.08.11

›› 2020, Vol. 32 ›› Issue (8): 1415-1419.DOI: 10.3969/j.issn.1004-1524.2020.08.11

• Plant Protection • Previous Articles Next Articles

Toxicity difference of EoNPV of two sibling species of tea genometrids

LI Hong^1,2, TANG Meijun^1,3, GUO Huawei^1,3, WANG Zhibo^1,3, XIAO Qiang^1,3,*

1. Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China;
2. Graduate School of the Chinese Academy of Agricultural Sciences, Beijing 100081, China;
3. Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China

Received:2020-01-30 Online:2020-08-25 Published:2020-08-28

Abstract

Abstract: The EoNPV is an important pathogenic microorganism. And EoNPV can cause the death of Ectropis obliqua Prout and Ectropis grisescens in tea plantation. In order to further clarify the virulence difference of EoNPV to two sibling species of E. obliqua and E. grisescens. The leaf disk method feeding with two sibling species 3th instar larvae was used to find out the difference in virulence. The results showed that LD₅₀ of E. grisescens was 28.9 times as E. obliqua. The LT₅₀ of E. obliqua was less than E. grisescens. It showed that toxicity was different in two sibling species of tea genometrids. EoNPV had higher pathogenicity to E. obliqua. It had practical significance for using EoNPV to control the two sibling species of tea plantation.

Key words: Ectropis obliqua, Ectropis grisescens, EoNPV, leaf disc method, LD₅₀, LT₅₀

CLC Number:

S435.711

LI Hong, TANG Meijun, GUO Huawei, WANG Zhibo, XIAO Qiang. Toxicity difference of EoNPV of two sibling species of tea genometrids[J]. , 2020, 32(8): 1415-1419.

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Toxicity difference of EoNPV of two sibling species of tea genometrids

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