IDEAS home Printed from https://ideas.repec.org/a/caa/jnlpps/v48y2012ispecialissueid79-2012-pps.html
   My bibliography  Save this article

Seasonal dispersal of the Western corn rootworm (Diabrotica virgifera virgifera) adults in Bt and non-Bt maize fields

Author

Listed:
  • ľudovít Cagáň

    (Departament of Plant Protection, Faculty of Agrobiology and Food Resources, Slovak Agricultural University in Nitra, Nitra, Slovak Republic)

  • Ioan Rosca

    (Department of Entomology, Faculty of Agriculture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, Bucharest, Romania)

Abstract

32 experimental plots were sown at Borovce (district Trnava) in Slovakia during 2008 with 8 maize hybrids, including coleopteran-protected MON 88017, the lepidopteran-protected MON 89034, the stacked product, MON 89034 × MON 88017, that same hybrids isoline that did not have the Bt trait or traits, and 4 commercial hybrids. Part of the fourth repetition was unexpectedly infested and damaged with the Western corn rootworm (WCR). High numbers of the WCR adults were found in the damaged plots on July 8. Adult WCR abundance remained concentrated in this area until August 12-19. The beetles apparently began to disperse during August 19-September 2, and after September 2. The trap captures increased in the uninfested areas up to September 16, no significant difference having been found in the adult WCR captures between the infested and uninfested plots, including the plots with MON 88017. Bt-maize hybrids containing MON 88017 strongly influenced the level of the WCR damage as assessed by lodging of the maize plants, and they also influenced the numbers of the WCR adults before maize flowering. We found that intensive movement of the WCR adults from the place of their origin started later in the vegetation season.

Suggested Citation

  • ľudovít Cagáň & Ioan Rosca, 2012. "Seasonal dispersal of the Western corn rootworm (Diabrotica virgifera virgifera) adults in Bt and non-Bt maize fields," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 48(SpecialIs), pages 36-42.
    • Handle: RePEc:caa:jnlpps:v:48:y:2012:i:specialissue:id:79-2012-pps
    DOI: 10.17221/79/2012-PPS
    as

    Download full text from publisher

    File URL: http://pps.agriculturejournals.cz/doi/10.17221/79/2012-PPS.html
    Download Restriction: free of charge
    File URL: http://pps.agriculturejournals.cz/doi/10.17221/79/2012-PPS.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/79/2012-PPS?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:caa:jnlpps:v:48:y:2012:i:specialissue:id:79-2012-pps. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Ivo Andrle (email available below). General contact details of provider: https://www.cazv.cz/en/home/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.