Emergence pattern of sorghum midge and its major parasitoids on midge-resistant and susceptible genotypes

    Kausalya, K G and Nwanze, K F and Reddy, Y V R and Nwilene, F E and Reddy, D D R (1997) Emergence pattern of sorghum midge and its major parasitoids on midge-resistant and susceptible genotypes. Biocontrol Science and Technology, 7 (2). pp. 259-269. ISSN 0958-3157

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    Abstract

    Studies were conducted on the species composition of parasitoids of Stenodiplosis sorghicola, emergence pattern and level of parasitism. The studies were carried out in Andhra Pradesh, India, with three midge-resistant (ICSV 745, ICSV 89058 and IS 10712) and three susceptible (Swarna, CSH 9 and ICSV 112) sorghum genotypes during the 1992-93 post-rainy and 1993 rainy seasons. The species of parasitoids collected were Aprostocetus gala, A. coimbatorensis and Eupelmus spp. The species composition varied with the season, but was unaffected by varietal resistance and susceptibility to the midge. Although both species of Aprostocetus were present in rainy and post-rainy seasons, A. gala was predominant during the rainy season whereas A. Coimbatorensis was predominant in the post-rainy season. There was no significant difference in the pattern of parasitoid emergence or the level of midge parasitization between resistant and susceptible genotypes. These results indicate that resistance to midge in the genotypes studied was not antagonistic to parasitoid activity, and that there is potential to interface biological control with host-plant resistance in the management of this insect.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Uncontrolled Keywords: Stenodiplosis sorghicola, Sorghum midge, Resistant genotypes, Parasitoids, Aprostocetus gala, Aprostocetus coimbatorensis
    Subjects: Mandate crops > Sorghum
    Others > Entomology
    Depositing User: Mr B K Murthy
    Date Deposited: 09 Nov 2015 08:34
    Last Modified: 09 Nov 2015 08:34
    URI: http://oar.icrisat.org/id/eprint/9124
    Official URL: http://dx.doi.org/10.1080/09583159730956
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: UNSPECIFIED
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