Drame-Yaye, A and Youm, O and Ayertey, J N (2003) Assessment of Grain Yield Losses in Pearl Millet Due to the Millet Stemborer, Coniesta ignefusalis (Hampson). Insect Science and its Application, 23 (3). pp. 259-265.
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Abstract
Studies were conducted at the ICRISAT Sahelian Centre, Niger, to assess damage and yield loss by the millet stemborer, C. ignefusalis on Pennisetum glaucum. Although 78% of stems were infested, late attack by the millet stemborer on millet plants resulted in bored stems yielding more than unbored ones. Artificial infestations with 5 and 10 larvae per plant at 2 weeks after plant emergence resulted in 50-70% plants with deadhearts and 24-100% avoidable yield loss. At 4 weeks after plant emergence, infestations with 5 and 10 larvae per plant resulted in 7% yield increase and 16% yield loss, respectively. Therefore, both the age of plant and density of borer population at the time of infestation can influence the resulting stemborer damage and yield loss on pearl millet.
| Item Type: | Article |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Subjects: | Mandate crops > Millets |
| Depositing User: | Library ICRISAT |
| Date Deposited: | 12 Sep 2011 10:30 |
| Last Modified: | 14 Sep 2013 11:58 |
| URI: | http://oar.icrisat.org/id/eprint/1390 |
| Official URL: | http://dx.doi.org/10.1017/S1742758400023651 |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | We gratefully acknowledge Winrock International and the International Institute of Tropical Agriculture (IITA) through the African Women Leaders in Agriculture and Environment (AWLAE) programme, for providing the scholarship. We are gratefull to The IFAD TAG # 442 support for Visiting Scientist. We thank Maliki Yacouba, Idi Saley, Salha Halarou, Amadou Kangueye, Moussa Mamoudou and the technical staff in the Entomology Unit, ICRISAT Sahelian Centre, Niamey, for their help during the course of study. |
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