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Abundance of cereal aphids (Hemiptera: Aphididae) within wild Triticum and Aegi­lops spp., and cultivated wheat

Author

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  • Helena Havlíčková
  • Vojtěch Holubec

Abstract

Accessions of the wild Triticum species: T. boeticum, T. dicoccoides, T. urartu, and the Aegilops species: Ae. columnaris, Ae. geniculata, Ae. markgrafii, Ae. neglecta and Ae. triuncialis in the collection of the Gene Bank of RICP Prague-Ruzyně, with T. aestivum cv. Sandra as control, were evaluated for cereal aphid occurrence in the open during 1995-1998 period. The cereal aphid species Rhopalosiphum padi (RP), Metopolophium dirhodum (MD) and Sitobion avenae (SA) were predominant on the plants. Variations in the abundance of individual aphid species in each year were found. The results from 1997, the optimal year for aphid occurrence, showed differences between both aphid and plant species. RP significantly dominated in Triticum species, while SA preferred Aegilops accessions. A significant negative correlation was found between RP and MD densities in the Triti­ cum spp., while MD and SA occurrence showed a negative relation to that of RP and SA in the Aegilops accessions. The individual aphid species showed a similar pattern of infestation in several genomically close accessions.

Suggested Citation

  • Helena Havlíčková & Vojtěch Holubec, 1999. "Abundance of cereal aphids (Hemiptera: Aphididae) within wild Triticum and Aegi­lops spp., and cultivated wheat," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 35(2), pages 67-70.
    • Handle: RePEc:caa:jnlpps:v:35:y:1999:i:2:id:9678-pps
    DOI: 10.17221/9678-PPS
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