Damage caused by Ephestia kuehniella (Lepidoptera: Pyralidae) and Sitotroga cerealella (Lepidoptera: Gelechiidae) to Brazil nuts

  • Evaldo Martins Pires Federal University of Mato Grosso, Graduate Program in Environmental Sciences (PPGCAM), Sinop, Mato Grosso, 78557-267, Brazil; http://orcid.org/0000-0003-0647-084X
  • Roberta Martins Nogueira Federal University of Mato Grosso, Graduate Program in Environmental Sciences (PPGCAM), Sinop, Mato Grosso, 78557-267, Brazil;
  • Mábio Chrisley Lacerda Embrapa, Arroz e Feijão, Santo Antônio de Goiás, Goiás, 75375-000, Brazil;
Keywords: Amazon forest product, Lepidoptera, lesions, primary pests

Abstract

Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) and Sitotroga cerealella Olivier (Lepidoptera: Gelechiidae) are considered important pests of stored products in Brazil. The purpose of this study was to determine if E. kuehniella and S. cerealella feed on Brazil nuts, and to identify the type of damage caused by these insects. The damage caused by these insects starts as a scratched surface that evolves into deep tunnels until a complete change in the shape of the nut occurs. Due to their ability to injure intact nuts, and their capacity to produce severe damage and economic losses, E. kuehniella and S. cerealella have the potential to be among the primary pests of stored Brazil nuts.


Sumário

Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) e Sitotroga cerealella Olivier (Lepidoptera: Gelechiidae) são consideradas importantes pragas de produtos armazenados no Brasil. O objetivo foi verificar se E. kuehniella e S. cerealella se alimentam em castanha-do-brasil, e identificar os tipos de danos causados por esses insetos. As lesões produzidas por esses insetos se iniciam como raspados superficiais, o que evolui para galerias profundas até a completa alteração do formato da amêndoa. Devido a habilidade de danificar a amêndoa intacta e sua capacidade de promover consideráveis danos lesões com consequentes perdas no valor das castanhas, E. kuehniella e S. cerealella podem ser incluídas entre as pragas primárias da castanha-do-brazil stored.

 View this article in BioOne

 

Published
2019-02-04
Section
Scientific Notes