Transmission of Mal de Río Cuarto virus by first and third-instar nymphs of Delphacodes kuscheli

Authors

  • Joel Arneodo
  • Fabiana Guzmán
  • Silvia Ojeda
  • María Laura Ramos
  • Irma Laguna
  • Luis Conci
  • Graciela Troul

DOI:

https://doi.org/10.1590/S1678-3921.pab2005.v40.6942

Keywords:

Delphacidae, Reoviridae, experimental transmission, latent period

Abstract

The ability of first and third-instar Delphacodes kuscheli Fennah (Hemiptera: Delphacidae) nymphs to acquire and transmit Mal de Río Cuarto virus (MRCV), under controlled conditions, was investigated. First and third-instar nymphs were allowed acquisition feeding separately on infected wheat plants for 48 hours. The insects were then placed in groups of three for serial transmissions to healthy wheat plants, using inoculation periods of 24 hours. Both instars of D. kuscheli were demonstrated to acquire and subsequently transmit the virus. Nevertheless, transmission trials showed highest transmission efficiency and shortest latent period when MRCV was acquired by first-instar nymphs.

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Published

2005-02-01

How to Cite

Arneodo, J., Guzmán, F., Ojeda, S., Ramos, M. L., Laguna, I., Conci, L., & Troul, G. (2005). Transmission of <i>Mal de Río Cuarto</i> virus by first and third-instar nymphs of <i>Delphacodes kuscheli</i>. Pesquisa Agropecuaria Brasileira, 40(2), 187–191. https://doi.org/10.1590/S1678-3921.pab2005.v40.6942

Issue

v.40, n.2, fev. 2005

Section

SCIENTIFIC NOTES