Field experiments were conducted in the dry season of 1985–86 and the first and second rainy seasons of 1986 at Ibadan, Nigeria, to assess the level of damage and yield reductions caused by Eldana saccharina Walker to maize. Grain weight per plant in artificially infested plots was up to 36% lowe...
Bosque Pérez, N.A.
,
Mareck, J.H.
,
[Effect of stem borer Eldana saccharina (Lepidoptera: Pyralidae) on the yield of maize]
,
Effect of stem borer Eldana saccharina (Lepidoptera: Pyralidae) on the yield of maize
Bosque Pérez, N.A.
,
Buddenhagen, I.W.
,
[Studies on epidemiology of virus diseases of chickpea in California]
,
Studies on epidemiology of virus diseases of chickpea in California
Sesamia calamistis Hampson and Eldana saccharina Walker larvae were reared at 25°C on pieces of stem from five indigenous African grasses. All five, Andropogon sp., Panicum maximum Jacq., Pennisetum polystachion (L.) Schult., P. purpureum L. and Sorghum arundinaceum (Desv.) Stapf. have been repor...
Shanower, T.G.
,
Schulthess, F.
,
Bosque Pérez, N.A.
,
[The effect of laval diet on the growth and development of Sesamia calamistis Hampson (Lepidoptera: Noctuidae) and Eldana saccharina Walker (Lepidoptera: PYralidae)]
,
The effect of laval diet on the growth and development of Sesamia calamistis Hampson (Lepidoptera: Noctuidae) and Eldana saccharina Walker (Lepidoptera: PYralidae)
Insect pests severely limit the production of maize, one of the most important cereal crops world-wide. Losses reach millions of dollars annually. Control includes cultural, chemical, and biological methods in addition to plant resistance. Integrated pest management combines control methods in an...
The effects of maize variety and storage form on development of the maize weevil, Sitophilus zeamais Motschulsky, were studied under artificial infestation at 25 ± 2 °C and 70 ± 5% r.h. in the laboratory. Three improved West African maize varieties, Abeleehi, EV8725-SR, Pop63-SR and the local var...
Vowotor, K.A.
,
Bosque Pérez, N.A.
,
Ayertey, J.
,
[Effect of maize variety and storage form on the development of the maize weevil, Sitophilus zeamais Motschulsky]
,
Effect of maize variety and storage form on the development of the maize weevil, Sitophilus zeamais Motschulsky
Monthly plantings of three maize cultivars with differing resistance/susceptibility to maize streak geminivirus (MSV) and samplings of Cicadulina leafhopper vector were made from December 1988 to April 1990 in the humid forest and from May to November 1989 in the Guinea savanna zones of Nigeria. ...
Asanzi, M.
,
Bosque Pérez, N.A.
,
Buddenhagen, I.W.
,
Gordon, D.
,
Nault, L.
,
[Interactions among maize steak virus disease leathopper vector populations and maize cultivars in forest and savanna zones of Nigeria]
,
Interactions among maize steak virus disease leathopper vector populations and maize cultivars in forest and savanna zones of Nigeria
Maize streak virus (MSV) was first studied by Storey in Kenya in the 1920s and resistance transferred into East African maize in the 1960's. Yet the majority of farmers of East Africa are still growing streak-susceptible maize. At the International Institute of Tropical Agriculture (IITA) in Nige...
Buddenhagen, I.W.
,
Bosque Pérez, N.A.
,
[Historical overview of breeding for durable resistance to maize streak virus for tropical Africa]
,
Historical overview of breeding for durable resistance to maize streak virus for tropical Africa
Life table studies of Mussidia nigrivenella Ragonot, a pest of maize in Benin, showed that host plant species had a significant effect on larval survival and developmental time. The maximum percentage of larvae surviving was recorded on jackbean, Canavalia ensiformis (36%) and lowest on maize (18...
Sétamou, M.
,
Schulthess, F.
,
Bosque Pérez, N.A.
,
Poehling, H.M.
,
Borgemeister, C.
,
[Bionomics of Mussidia nigrivenella (Lepidoptera: Pyralidae) on three host plants]
,
Bionomics of Mussidia nigrivenella (Lepidoptera: Pyralidae) on three host plants
La production du mals, I'une des eerolalea lei plus cultivees dans Ie monde, est serieusement mena-cole par les insectes nuisibles. Lea pertea annuelles ae chiffrent en millions de dollars. Le. molthodes de lutte culturale, chimique et biologique viennent compltlter la rolsistance varietale. La p...
Bosque Pérez, N.A.
,
[Principaux insectes nuisibles du mais en Afrique; biologie et methodes de lutte: guide de recherche de lIita, No. 30]
,
Principaux insectes nuisibles du mais en Afrique; biologie et methodes de lutte: guide de recherche de lIita, No. 30