Impact of the Groundnut Leafminer, Aproaerema Modicella (Deventer) (Lepidoptera: Gelechiidae) on Growth and Yield of Two Groundnut Cultivars

    Shanower, T G and Gutierrez, A P and Wightman, J A (1995) Impact of the Groundnut Leafminer, Aproaerema Modicella (Deventer) (Lepidoptera: Gelechiidae) on Growth and Yield of Two Groundnut Cultivars. Insect Science and its Application, 16 (1). pp. 87-91. ISSN 0191-9040

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    Abstract

    The impact of iacval defoliation by Aproaerema mudicella (Deventer) on the growth, development and yield of two groundnut cultivars (Kudiri 3 and Nc Ac I7W0) was studied under a naturally occurring, high density infestation.Defoliation by leaf-mining larvae did not increase plant mortality in either cultivar. In both cultivars, leaf and stem production were significantly lower in untreated plots than in the treated plots. Unsprayed plants of both cultivars produced fewer flowers, pegs, and pods per plant compared to plants of the same cultivar protected with monocrotophos. Fruit growth rates, however, were marginally higher in control plots than in treated plots, Pod yields were 35 and 44% lower, and haulm yields 25 and 20% lower, in Kadiri 3 and NC Ac 17090, respectively in untreated control plots compared to plots treated with insecticide. A linear relationship between leafminer density and pod and haulm yields was observed, and differences between cultivars were not significant.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Subjects: Mandate crops > Groundnut
    Depositing User: Mr Charan Sai Ch
    Date Deposited: 25 Oct 2011 03:11
    Last Modified: 25 Oct 2011 03:11
    URI: http://oar.icrisat.org/id/eprint/3177
    Official URL:
    Projects: UNSPECIFIED
    Funders: Rockefeller Foundation
    Acknowledgement: We thank the field staff of the Legumes Entomology Unit at ICRISAT for help in data collection and the Rockefeller Foundation for providing fellowship support to the senior author. This paper was approved as Journal Article No. JA- 15 16 by ICRISAT, Patancheru, Andhra Pradesh 502 324 India.
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