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Book 1996

Autor: Jackai, L.E.N.

Les insecticides peuvent servir a combattre les insectes nuisibles mais sont generalement toxiques pour taus les animaux. Les insecticides d'une valeur DL50 aigue orale inferieure a 200 mg/kg ne devraient pas litre utilises dans les petites exploitations. Par mesure de precaution, I'emploi d'inse...

Enlace original: https://cgspace.cgiar.org/handle/10568/97266

Investigación en Agricultura
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Jackai, L.E.N. ,  [Precautions demploi des insecticides dans lagriculture] ,  Precautions demploi des insecticides dans lagriculture
Journal Article 1999

Autor: Omitogun, O. Jackai, L.E.N. Thottappilly, G.

Insecticidal lectins were isolated from 20 resistant Vigna and non‐Vigna legumes and tested againstn 3 pests of cowpea namely: Maruca vitrata, Callosobruchus maculatus and Clavigralla tomentosicollis. Crude lectins were separated from seeds using sodium chloride extraction, ammonium sulfate fract...

Enlace original: https://cgspace.cgiar.org/handle/10568/95952

Investigación en Agricultura
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Omitogun, O. ,  Jackai, L.E.N. ,  Thottappilly, G. ,  [Isolation of insecticidal lectinenriched extracts from African yam bean (Sphenostylis stenocarpa) and other legume species] ,  Isolation of insecticidal lectinenriched extracts from African yam bean (Sphenostylis stenocarpa) and other legume species
Journal Article 1991

Autor: Afun, J. Jackai, L.E.N. Hodgson, C.

‘Monitored' sprays are applied when the action threshold (AT) has been reached or exceeded, based on monitoring of crop damage or pest infestation, whereas ‘calendar' sprays are applied at specific days after planting without taking into account continued presence or absence of the pest. In this ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98629

Investigación en Agricultura
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Afun, J. ,  Jackai, L.E.N. ,  Hodgson, C. ,  [Calendar and monitored insecticide application for the control of cowpea pests] ,  Calendar and monitored insecticide application for the control of cowpea pests
Book Chapter 1997

Autor: Jackai, L.E.N. Adalla, C.

Cowpea yields are known to be low in most parts of the tropics because of heavy insect pest problems. In Africa, cowpea growers do not generally use synthetic insecticides; however, in most parts of Asia, dependence on the use of insecticides is common, often with serious environmental consequenc...

Enlace original: https://cgspace.cgiar.org/handle/10568/95978

Investigación en Agricultura
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Jackai, L.E.N. ,  Adalla, C. ,  [Pest management practices in cowpea: a review] ,  Pest management practices in cowpea: a review

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