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Book 1992

Autor: Umeh, E.D.N. Ukwungwu, M.N. Joshi, R.

La eecidomyie afrieaine des galles du riz (Orseolia oryzivora Hllrris & Gagne) est un insecte ravageur du riz dont la population a recemment eonnu une veritable explosion dans bon nombre de pays Afriellins, L'infestation peut provoquer la perte totale de la reeolte. Plusieurs agents naturels de l...

Enlace original: https://cgspace.cgiar.org/handle/10568/98750

Investigación en Agricultura
Enlace permanente

Umeh, E.D.N. ,  Ukwungwu, M.N. ,  Joshi, R. ,  [Lutte biologique naturelle contre la cecidomyie africaine du riz au Nigeria: guide de recherche de lIita, No. 37] ,  Lutte biologique naturelle contre la cecidomyie africaine du riz au Nigeria: guide de recherche de lIita, No. 37
Book 1991

Autor: Umeh, E.D.N. Joshi, R. Ukwungwu, M.N.

The African rice gall midge (ARGM), Orseolia oryzivora Harris & Gagne, has recently emerged as an important insect pest of rice in many African countries. Infestation can result in total crop failure. Naturally occurring biological control agents have been identified in Nigeria that can reduce AR...

Enlace original: https://cgspace.cgiar.org/handle/10568/98763

Investigación en Agricultura
Enlace permanente

Umeh, E.D.N. ,  Joshi, R. ,  Ukwungwu, M.N. ,  [Natural biological control of African rice gall midge in Nigeria: IITA research guide, No. 37] ,  Natural biological control of African rice gall midge in Nigeria: IITA research guide, No. 37
Book 1994

Autor: Okocha, P. Ukwungwu, M.N. Joshi, R.

The African rice gall midge (ARGM) is an insect pest of rice in Africa which has recently attained outbreak levels in many African countries. Infestation can result in total crop failure. The use of insecticides to control the pest has several disadvantages. Cultivation of resistant varieties is ...

Enlace original: https://cgspace.cgiar.org/handle/10568/97215

Investigación en Agricultura
Enlace permanente

Okocha, P. ,  Ukwungwu, M.N. ,  Joshi, R. ,  [Field varietal screening against African rice gall midge: IITA research guide, No. 34] ,  Field varietal screening against African rice gall midge: IITA research guide, No. 34

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