Distribution of the African rice gall midge,Orseolia oryzivoraHarris and Gagné and its parasitoids in Nigeria
- 1 January 1992
- journal article
- research article
- Published by Informa UK Limited in Tropical Pest Management
- Vol. 38 (3), 241-244
- https://doi.org/10.1080/09670879209371700
Abstract
The African rice gall midge, Orseolia oryzivora Harris and Gagné has become one of the major biotic constraints to rice production in Nigeria. A survey of gall midge distribution in Nigeria showed that the pest was common in the savannah and forest zones on rice grown under lowland ecologies. Endemic areas were identified which could serve as ‘hot spots’ for varietal screening. Indigenous parasitoids of the pest were identified as: Platygaster diplosisae Risbec, Aprostocetus pachydiplosisae Risbec and Aphanogmus spp. The dominant parasitoid was, however, P. diplosisae.Keywords
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