Data/hora: 03/06/2024 03:39:59

Provedor de dados: | 196
País: | Brazil
Título: | PERFORMANCE OF Metarhizium rileyi APPLIED ON Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae)
Autores: | de Souza Loureiro, Elisângela; de Souza Tosta, Ricardo Alexandre; Mingotti Dias, Pamella; Amorim Pessoa, Luis Gustavo; Mendes de Oliveira Neto, Francisco; Reis Devoz, Gabriel Luiz; Muchalak, Franciele.
Data: | 2020-04-03
Ano: | 2020
Resumo: | This study aimed to evaluate the efficiency of different strains of the entomopathogenic fungus Metarhizium rileyi in the control of Helicoverpa armigera caterpillars in laboratory conditions. Caterpillars between the 2nd and 3rd instar were used, ranging in size from 0.7 to 1.2 cm length. The experimental design used was completely randomized, composed of five treatments and five replications, each one consisting of 50 insects. The treatments T1 - Control (sterile distilled water), T2 - M. rileyi UFMS 02 strain, T3 - M. rileyi UFMS 03 strain, T4 - M. rileyi UFMS 06 strain, and T5 - M. rileyi UFMS 07 strain were evaluated. All treatments were applied (2 mL/insect) in suspensions of the order of 1.0 × 109 conidia mL-1, and Tween 80® was added in all treatments. Evaluations were performed daily to verify mortality and sublethal effects. For emerging adults, Filial Generation (FG), the biological cycle was evaluated. The data referring to larval mortality for the Parental Generation (PG) and GF and pupal for GF were submitted to analysis of variance, and the Scott-Knott test grouped the averages at 5% probability. The strains tested did not provide pathogenicity in the larval phase of H. armigera for PG and FG. However, there was a reduction in oviposition in all treatments regarding the control. There was an effect on the reproductive phase of GF caterpillars exposed to M. rileyi.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicosonline.uems.br/index.php/agrineo/article/view/4208

10.32404/rean.v7i1.4208

Editor: | Universidade Estadual de Mato Grosso do Sul, Unidade Universitária de Cassilândia
Relação: | http://periodicosonline.uems.br/index.php/agrineo/article/view/4208/3308
Formato: | application/pdf

Fonte:

Revista de Agricultura Neotropical; v. 7 n. 1 (2020): Revista de Agricultura Neotropical; 60-65

REVISTA DE AGRICULTURA NEOTROPICAL; Vol. 7 No. 1 (2020): REVISTA DE AGRICULTURA NEOTROPICAL; 60-65

2358-6303

10.32404/rean.v7i1

Fonte: | Copyright (c) 2020 REVISTA DE AGRICULTURA NEOTROPICAL