Resistance of Some Rice Varieties to the African Striped Borer, Chilo Zacconius (Bleszynski)

  • M. N. Ukwungwu
  • J. A. Odebiyi
Research Article


Sixty selected rice varieties were tested for resistance to damage by the African striped borer, Chilo zacconius. Artificial infestation with first instar larvae in screenhouse showed that Lac 23 (white), IR 2035-120-3, IR 4625-132-1-2, Colombia 1 and N 21-1 had significantly low “dead hearts” and larval survival. Damage was also low when these varieties were exposed to adults in the screenhouse and in the field. Both local and exotic varieties possessed resistance. Antibiosis conferred resistance to the borer in the varieties screened.

Key Words

Rice varieties African striped borer “dead heart” “whitehead” larval survival antibiosis 


Soixante variétés sélectionnées de riz ont été testées pour la résistance contre la foneuse rayée des tiges africain Chilo zacconius. La destruction du colur de la tige aiusi que la survie larvaire étaient significatiuement faibles pour les variétés Lac 23 (blanche), IR 2035-120-3, IR 4625-132-1-2, Colombia 1 et N21-1. Ces variétés étaient aussi peu endommagées par les insects adultes en serre grillagée et an champs. La résistance a été montrée par les variétés tant locales qu’exotiques. La résistance dans les variétés cribblées était conferrée par l’antibiose.

Mots Cléfs

Variétés de riz foreuse rayée des tiges destruction du colur de la tige panicule blanche survie larvaire et antibiose 


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Copyright information

© ICIPE 1985

Authors and Affiliations

  • M. N. Ukwungwu
    • 1
  • J. A. Odebiyi
    • 1
  1. 1.Department of Agricultural BiologyUniversity of IbadanIbadanNigeria

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