Minja, E M and Shanower, T G (1999) A Braconidae Parasite (Bracon sp. near celer Szepligeti) on Pigeonpea Pod Fly (Melanagromyza chalcosoma Spencer) in Farmers' Fields in Southern and Eastern Africa. International Chickpea Newsletter, 6. pp. 43-44. ISSN 0257-2508
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Abstract
The incidence and distribution of Bracon sp. near B. celer, a parasitoid of Melanagromyza chalcosoma, were assessed in major pigeon pea-growing areas in Kenya, Malawi, Tanzania and Uganda, during 1995 and 1996. Populations of M. chalcosoma were greatest in Kenya and infestations were high in areas where the crop matured late in the season or in cool weather. Areas near the coast at <500 m altitude had insignificant populations of M. chalcosoma and no parasitoids were recorded. As the pest population increased, the incidence of the parasitoid also increased. Mean parasitism rates were recorded as 5.2, 2.6, 3.0 and 2.3% for Kenya, Malawi, Tanzania and Uganda, respectively.It is concluded that B. celer is widespread and could contribute to the management of M. chalcosoma on pigeon peas.
| Item Type: | Article |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Subjects: | Mandate crops > Pigeonpea |
| Depositing User: | Library ICRISAT |
| Date Deposited: | 21 Oct 2011 12:46 |
| Last Modified: | 21 Oct 2011 12:49 |
| URI: | http://oar.icrisat.org/id/eprint/2994 |
| Official URL: | |
| Projects: | UNSPECIFIED |
| Funders: | African Development Bank |
| Acknowledgement: | We are grateful to the Af rican Development Bank (AfDB) for financial support. We appreciate the efforts of Drs l .M. White and A . K . Walker respectively, of "the Identification Service, CABI International Institute of Entomology" for authoritative identifications of the pod f ly and the parasite. |
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