Áfidos vectores del virus del enanismo amarillo de la cebada (BYDV) en cultivo de trigo en el Paraguay

Rebeca González Torres; Luis Roberto Gonzalez Segnana; Osmar René Arias; María Bernarda Ramírez

doi:10.18004/investig.agrar.2021.junio.2301678

Authors

Rebeca González Torres Universidad Nacional de Asunción, Facultad de Ciencias Agrarias, Área de Protección Vegetal. San Lorenzo, Paraguay.
Luis Roberto Gonzalez Segnana Universidad Nacional de Asunción, Facultad de Ciencias Agrarias, Area de Biología. San Lorenzo, Paraguay. https://orcid.org/0000-0003-2545-1820
Osmar René Arias Universidad Nacional de Asunción, Facultad de Ciencias Agrarias, Área de Protección Vegetal. San Lorenzo, Paraguay. https://orcid.org/0000-0003-4136-5922
María Bernarda Ramírez Universidad Nacional de Asunción, Facultad de Ciencias Agrarias, Área de Protección Vegetal. San Lorenzo, Paraguay. https://orcid.org/0000-0003-2052-7910

DOI:

https://doi.org/10.18004/investig.agrar.2021.junio.2301678

Keywords:

Barley yellow dwarf virus, Wheat, aphid

Abstract

The Barley yellow dwarf virus or Barley Yellow Dwarf Virus (BYDV) is one of the aphid-borne diseases present in many wheat-producing regions of the world, causing significant losses. Identifying the species that transmit the disease is very important, in order to management tactics and to avoid its spread. The object of this study is to identify BYDV-transmitting aphid species in wheat crops in the areas of highest production in Paraguay; Alto Paraná, Itapúa, Caaguazú and San Pedro. The research was carried out from the start of the seedling emergence to the final stage of wheat cultivation, which ranged from May to October 2014. The insects were captured weekly in each of the selected plots in Moericke-type traps. The data were subjected to fauna analysis. Five species of aphids were identified: Rhopalosiphum padi, Rhopalosiphum maidis, Sitobion avenae, Schizaphis graminum, Rhopalosiphum rufiabdominalis, all identified species are considered virus transmitters.

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