Existence of antiviral principles (AVPs) in seed extracts of Harpullia cupanioides (Roxb.) against tomato spotted wilt virus (TSWV), rice tungro virus (RTV) and cowpea aphid borne mosaic virus (CABMV)

C. Bharathimatha, Sabitha Doraiswamy, R. Rabindran, P. Renukadevi, R. Velazhahan

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Seed extract of Harpullia cupanioides was tested against infection by Tomato spotted wilt virus (TSWV), Rice tungro virus (RTV) and Cowpea aphid borne mosaic virus (CABMV). Seed extract of H. cupanioides (10%) when sprayed on test plants 24 h before virus inoculation significantly inhibited virus infections. Percentage inhibition of TSWV in local lesion host by 10% seed extract of H. cupanioides was found to be 90.9. Pre-inoculation application of 10% seed extract of H. cupanioides provided 87.5% inhibition of CABMV infection. The seed extract (10%) sprayed rice plants recorded RTV infection of 48% as against 100% in control.

Original languageEnglish
Pages (from-to)109-114
Number of pages6
JournalActa Phytopathologica et Entomologica Hungarica
Issue number1-2
Publication statusPublished - 2003



  • Antiviral activity
  • Plant extracts

ASJC Scopus subject areas

  • Plant Science
  • Insect Science

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