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Infection of Beauveria bassiana and Cordyceps javanica on different immature stages of Duponchelia fovealis Zeller (Lepidoptera: Crambidae)

Publicado en:Crop Protection. 138 (105347): - 2020-12-01 138(105347), doi: 10.1016/j.cropro.2020.105347

Miras-Avalos J.m.;

Afiliaciones

Centro de Investigación y Tecnología Agroalimentaria de Aragón - Entidad de origen
Conselho Nacional de Desenvolvimento Científico e Tecnológico - Financiador
CSIC - Estacion Experimental de Aula Dei EEAD - Autor o Coautor
Ctr Invest & Tecnol Agroalimentaria Aragon CITA, Unidad Suelos & Riegos, EEAD CSIC, Ave Montanana 930, Zaragoza 50059, Spain - Autor o Coautor
Univ Fed Parana, Dept Basic Pathol, Lab Entomol Prof Angelo Moreira da Costa Lima, Ave Cel Francisco H dos Santos S-N, BR-81531980 Curitiba, Parana, Brazil - Autor o Coautor
Univ Fed Parana, Dept Basic Pathol, Lab Microbiol & Mol Biol LabMicro, Ave Cel Francisco H dos Santos S-N, BR-81531980 Curitiba, Parana, Brazil - Autor o Coautor
Universidade Federal do Paraná - Autor o Coautor
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Resúmen

Resúmen: © 2020 Elsevier Ltd Entomopathogenic fungi (EPF) can be viable options for biological control of agricultural pests. The selection of fungal strains is crucial for a successful pest control. The current study aimed to determine in the laboratory the susceptibility of different immature stages of Duponchelia fovealis Zeller (Lepidoptera: Crambidae) to EPF strains (Beauveria bassiana Bea111 and Cordyceps javanica Isa340). Immature stages of D. fovealis were sprayed with EPF concentrations from 2 × 103 to 2 × 109 conidia mL−1 and their viability and mortality were evaluated. Lethal time and concentration were estimated for pupae and each larval instar. Virulence depended on strain, dose, and insect life stage. The eggs were resistant to Bea111 and Isa340 strains. Mortality of larvae depended on the EPF strain and the larval instar, with the first instar being the most sensitive. Lethal concentrations for D. fovealis 1st instar larvae were 3.4 × 105 and 1.7 × 107 conidia mL−1 with Bea111 and Isa340, respectively. Isa340 performed better than Bea111 for controlling pupae. Scanning electron microscopy revealed the adhesion and penetration structures of both fungi in the 2nd instar infected larvae 6 h after inoculation, while fungal extrusion occurred between 54 and 94 h after spraying with Bea111 and Isa340, respectively.

Palabras clave: 1st record; Biocontrol agent; Biocontrol agents; Electron microscopy; Entomopathogenic fungi; European pepper moth; Fragaria x ananassa; Larvae; Metarhizium; Pest; Spodoptera-litura; Strawberry; Trichogramma-pretiosum; Virulence

Indicios de calidad

WoS Scopus by Scimago
Best Categ.AgronomyAgronomy and Crop Science
WoSScopus by ScimagoSPIFecytAgaurDialnetCircCapesMiar
IF2.5710.797--11.000
Rank26/8960/379
QQ2Q1-----A1
DD3D2-
TT1T1
PP72P16
Index ERIC-
Index Emergin-
Index AHCI-