Some Field and Screenhouse Experiments on Maize Resistance to Chilo Partellus under Western Kenya Conditions

  • Z. T. Dabrowski
  • E. O. Nyangiri


The results of five experiments on maize resistance to Chilo partellus, suggest that there are at least five levels of relationships affecting plant colonization, larval survival and damage level: non-acceptance for oviposition shown by Inbred D and G and CIMMYT lines 125, 33, 324 and 178 (s3). Preferred Inbred A was oviposited 2–3 times higher. Feeding of young larval instars on young leaves or leaf sheaths, reduced on CIMMYT lines 324, 125 and 33; concentration of feeding of young larval instars on the upper growing part of plant, extensive on the highly susceptible Inbred A and reduced on all resistant lines tested; penetration of young larval instars into stem, reduced on CIMMYT lines 34 and 125 and Inbred G; and feeding of older larval instars in stem, reduced on CIMMYT lines 324, 178, 125 and Inbred G.

Key Words

Maize Chilo partellus the spotted stalk-borer stem borers non-preference non-acceptance antixenosis antibiosis tolerance screening for resistance oviposition 


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Copyright information

© ICIPE 1983

Authors and Affiliations

  • Z. T. Dabrowski
    • 1
  • E. O. Nyangiri
    • 1
  1. 1.The International Centre of Insect Physiology and Ecology (ICIPE)NairobiKenya

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