IDEAS home Printed from
   My bibliography  Save this paper

Some elements of economic efficiency of biological treatment to combat corn borer (ostrinia nubilalis hbn) in the conditions of Transylvania


  • Mureşanu, Felicia
  • Has, Voichiţa
  • Ignea, Mircea


The paper is a synthesis of the results obtained during 1998-2010, on the effectiveness of biological (Trichogramma spp.) and chemical treatments (different insecticides) in reducing the attack of Ostrinia nubilalis Hbn. to the corn genotypes created at The Agricultural Research and Development Station Turda. Among Trichogramma species used, a good efficacy in reducing attack of Ostrinia nubilalis was presented by T. maidis (80.0 %) and T. evanescens (78.0 %) - 3 applications. The applications with these species of Trichogramma to maize crops should be done at a distance of 6-7 m / row and between rows, in order to allow a uniform dispersion and a high degree of parasitizing eggs of corn borer. The biological treatments with T. maidis made to corn hybrids created at SCDA Turda, had reduced significantly the corn borer attack, recording production increases from 4.0 to 11.0 %. The basic conditions for achieving high efficiency in reducing the attack of Ostrinia nubilalis, with Trichogramma spp. are: conducting applications at optimal moment and ensuring optimum densities correlated with the density of the pest and chemicals used (Decis Mega 50 EW, Calypso 480 SC) had reduced the attack frequency significantly and very significantly, their efficacy in this regard was between 87-90 %. From the analysis performed through the economic effect of biological and chemical treatments to combat corn borer (Ostrinia nubilalis) resulted certain economic advantages using the method of biological control with Trichogramma spp., both in terms of reducing costs per hectares and the production growth produced. Thus, the species of this entomophage used, Trichogramma spp., constitutes in a way a “new generation of biological insecticides'', that does not pollute and is used to combat the over 500 species of pests in the order Lepidoptera.

Suggested Citation

  • Mureşanu, Felicia & Has, Voichiţa & Ignea, Mircea, 2013. "Some elements of economic efficiency of biological treatment to combat corn borer (ostrinia nubilalis hbn) in the conditions of Transylvania," MPRA Paper 55009, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:55009

    Download full text from publisher

    File URL:
    File Function: original version
    Download Restriction: no

    More about this item


    Trichogramma spp.; Ostrinianubilalis Hbn.; biological treatments; economic efficiency;

    JEL classification:

    • Q1 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture

    NEP fields

    This paper has been announced in the following NEP Reports:


    Access and download statistics


    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:pra:mprapa:55009. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Joachim Winter) or (Rebekah McClure). General contact details of provider: .

    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 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.

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

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.