Encyclopedia of Entomology

2008 Edition
| Editors: John L. Capinera

Displacement of Native Stem Borers by Chilo partellus

  • William A. Overholt
Reference work entry
DOI: https://doi.org/10.1007/978-1-4020-6359-6_5034

The invasive stem borer, Chilo partellus, has proved to be a highly competitive colonizer in many of the areas it has invaded in eastern and southern Africa, often becoming the most injurious stem borer, and displacing native species. In coastal Kenya, there is evidence that C. partellus has partially displaced the indigenous borer, Chilo orichalcociliellus. Whether the displacement of C. orichalcociliellus will proceed toward complete extirpation in the southern coastal area of Kenya seems unlikely. Recent sampling has shown that C. orichalcociliellus continues to persist, and laboratory studies have found that C. orichalcociliellus was able to complete development in two native grasses in which C. partellus could not develop. This difference in niche breadths of the two species may account for the continued occurrence of the native species. Additionally, a parasitoid of C. partellus from Asia, Cotesia flavipes(Cameron), has been introduced and established in several countries in...

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • William A. Overholt
    • 1
  1. 1.ARC-Plant Protection Research InstitutePretoriaSouth Africa