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

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

Abstract

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 

Résumé

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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References

  1. Brenière J. (1973) The main rice parasites in West Africa and their control. West Africa Rice Development Association Seminar on Plant Protection’ for the Rice Crop. Monrovia, Liberia, May 1973, pp. 27–42.Google Scholar
  2. Israel P. (1967) Varietal resistance to rice stem-borers in India. In The Major Insect Pests of the Rice Plant, pp. 391–403. International Rice Research Institute, Philippines. John Hopkins Press, Baltimore.Google Scholar
  3. Oriate B. T. (1965) Estimation of stem-borer damage in rice fields. Philipp. Stat. 14, 201–221.Google Scholar
  4. Soto P. E. and Siddiqi Z. (1976) Screening for resistance to African rice insect pests. West Africa Rice Development Association Varietal Improvement. September 13–17, pp. 213–227.Google Scholar
  5. Thorsteinson A. J. (1960) Host selection in phytophagous insects. A. Rev. Ent. 5, 193–218.CrossRefGoogle Scholar
  6. Ukwungwu M. N. and Odebiyi J. A. (1984) Yield losses in resistant and susceptible varieties of rice in Nigeria due to Chilo zacconius Bleszynski and other stem-borers. Trop. Pest Manage. 30(3), 291–295.CrossRefGoogle Scholar

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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