Your browser doesn't support javascript.
loading
Insecticidal Activity of Lavandula dentata L. Essential Oil on Anticarsia gemmatalis (Hübner, 1818)
Vicenço, Camila Bonatto; Silvestre, Wendel Paulo; Menegol, Iriane Viganó; Carraro, Marina Cichin; Pauletti, Gabriel Fernandes.
Afiliação
  • Vicenço, Camila Bonatto; University of Caxias do Sul. Institute of Biotechnology. Caxias do Sul. BR
  • Silvestre, Wendel Paulo; University of Caxias do Sul. Institute of Biotechnology. Caxias do Sul. BR
  • Menegol, Iriane Viganó; University of Caxias do Sul. Laboratory of Pest Management. Caxias do Sul. BR
  • Carraro, Marina Cichin; University of Caxias do Sul. Laboratory of Pest Management. Caxias do Sul. BR
  • Pauletti, Gabriel Fernandes; University of Caxias do Sul. Institute of Biotechnology. Caxias do Sul. BR
Braz. arch. biol. technol ; Braz. arch. biol. technol;64: e21210327, 2021. tab, graf
Article em En | LILACS-Express | LILACS | ID: biblio-1355809
Biblioteca responsável: BR1.1
ABSTRACT
Abstract Anticarsia gemmatalis, commonly known as soybean caterpillar, causes important economic losses in soybean crops. Synthetic pesticides are the standard practice to control this insect. However, the indiscriminate use of these substances has increased the resistance of this pest. Thus, it is necessary to search for different control alternatives that are also more environmentally friendly. The objective of this work was to evaluate the chemical composition of Lavandula dentata L. essential oil (EO) and its activity on A. gemmatalis. The major compounds of essential oil were 1,8-cineole (31.5 wt.%), camphor (16.6 wt.%), and fenchone (15.9 wt.%). Bioassays were performed with third-instar caterpillars. EO concentrations of 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, and 1.0% v/v were diluted in Tween-80® 0.5% v/v and incorporated into the artificial diet given to caterpillars. Water, Tween-80® 0.5% v/v, and novaluron 0.075% w/v were added as negative and positive controls. For the aversion tests, soybean leaf discs were immersed in solutions with 0.4, 0.6, 0.8, and 1.0% v/v of EO, plus a negative control (water), and offered to caterpillars. In the bioassay, 100% mortality was observed from the concentration 0.6% v/v of the essential oil of L. dentata in 24 h; without statistical difference from 0.4 and 0.5% v/v. There was no important change in mortality between 24 and 72 h. In the aversion test, all EO treatments caused deterrence of caterpillars when compared to control, but without difference between EO concentrations. It was observed that L. dentata EO can be used as an alternative in the control of A. gemmatalis.
Palavras-chave
Texto completo
Adicionar na Minha BVS
Imprimir
XML
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Idioma: En Revista: Braz. arch. biol. technol Assunto da revista: BIOLOGIA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
Imprimir
XML
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Idioma: En Revista: Braz. arch. biol. technol Assunto da revista: BIOLOGIA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil