Identification of entomopathogenic fungus Metarhizium rileyi infested in fall armyworm in the cornfield of Korea, and evaluation of its virulence.
Arch Insect Biochem Physiol
; 111(4): e21965, 2022 Dec.
Article
en En
| MEDLINE
| ID: mdl-36053552
ABSTRACT
The fall armyworm (FAW) Spodoptera frugiperda is an important invasive pest in Africa and Asia. It is a polyphagous pest with at least 353 recorded host plant species, including corn. Chemical control of this pest is unsuccessful because of a developed resistance and harmful effects on the environment. Entomopathogenic fungi are potential biological control agents for FAW. In this study, the native strain of Metarhizium rileyi (KNU-Ye-1), collected from a cornfield at Yeongcheon, Korea, was identified by morphological and molecular characterization. The susceptibility of the fourth-instar larvae of FAW to the native strain M. rileyi was examined in the laboratory. The results showed that the Korean strain of M. rileyi (KNU-Ye-1) was highly virulent to FAW larvae, causing 89% mortality 7 days posttreatment. Therefore, M. rileyi (KNU-Ye-1) identified in this study is highly valuable for the biological control of FAW in the field.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Metarhizium
Tipo de estudio:
Diagnostic_studies
Límite:
Animals
Idioma:
En
Revista:
Arch Insect Biochem Physiol
Asunto de la revista:
BIOLOGIA
/
BIOQUIMICA
Año:
2022
Tipo del documento:
Article