Effect of insecticide application and host plant resistance on parasitization of sorghum midge, Contarinia sorghicola coq.

    Sharma, H C (1994) Effect of insecticide application and host plant resistance on parasitization of sorghum midge, Contarinia sorghicola coq. Biocontrol Science and Technology, 4 (1). pp. 53-60. ISSN 0958-3157

    [img] PDF - Published Version
    Restricted to ICRISAT users only
    Download (1MB) | Request a copy

    Abstract

    Sorghum midge (Contarinia sorghicola Coq.) (Diptera: Cecidomyiidae) is one of the most important pests of grain sorghum. The effects of different insecticides applied at the complete‐an‐thesis stage for insect control, and host plant resistance on the parasitization of sorghum midge, were studied. Tetrastichus spp. and Eupelmus popa are the major parasites of sorghum midge larvae. Of the several insecticides tested, monocrotophos reduced midge parasitization by half compared with the untreated control. Midge parasitization was lower on midge‐resistant genotypes. Amongst the lines resistant to sorghum midge, the levels of parasitization were higher on the moderately resistant lines IS 10132 and PM 9760 compared to those on IS 3461, IS 7005, IS 9807, IS 19512 and AF 28, etc. Parasite activity closely followed the midge population density across sowing dates. The role of these factors on the effectiveness of midge parasites in integrated pest management are discussed.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Uncontrolled Keywords: insecticides, Contarinia sorghicola, parasites, host plant resistance
    Subjects: Mandate crops > Sorghum
    Depositing User: Mr Charan Sai Ch
    Date Deposited: 25 Oct 2011 04:54
    Last Modified: 25 Oct 2011 04:54
    URI: http://oar.icrisat.org/id/eprint/3172
    Official URL: http://dx.doi.org/10.1080/09583159409355312
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: I would like to thank Mr V. V. Rao and Mr D. Krishna for their help in field studies and Dr K. F. Nwanze and Dr D. E. Byth for their comments on the manuscript. Approved as J.A. No. 1503 by the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT).
    Links:
    View Statistics

    Actions (login required)

    View Item View Item
    OAR@ICRISAT is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.