common lepidopterous borers attacking maize and/or the wild host Penni.l'etum purpureum in the forest zonc of Camcroon arc the noctuids Buss('ola.li/sca (Fuller), Sesamia calamistis (Hampson) and Poeol1oma serrata (Hampson), the pyralids Eldani! s{{cc/wrin{{ (Walker) and Mus.l'idia nigrivel1ella ...
Ndemah, R.
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Poehling, H.
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Borgemeister, C.
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Schulthess, F.
,
[Spatial dynamics of lepidopterous pests on Zea mays (Linnaeus) and Pennisetum purpureum (Moench) in the forest zone of Cameroon and their implications for sampling schemes]
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Spatial dynamics of lepidopterous pests on Zea mays (Linnaeus) and Pennisetum purpureum (Moench) in the forest zone of Cameroon and their implications for sampling schemes
The importance, geographical and temporal distributions of parasitoids of lepidopterous borers on maize and elephant grass, Pennisetum purpureum, were assessed during surveys in farmers’ fields in six villages and two on-station trials in the forest zone of Cameroon between 1995 and 1996. The bor...
Ndemah, R.
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Schulthess, F.
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Poehling, M.
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Borgemeister, C.
,
Goergen, Georg E.
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[Natural enemies of lepidopterous borers on maize and elephant grass in the forest zone of Cameroon]
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Natural enemies of lepidopterous borers on maize and elephant grass in the forest zone of Cameroon
In Africa, livestock production currently accounts for about 30% of the gross value of agricultural production. However, production is struggling to keep up with the demands of expanding human populations, the rise in urbanization and the associated shifts in diet habits. High costs of feed preve...
Shumo, M.
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Osuga, I.M.
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Khamis, F.
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Tanga, C.M.
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Fiaboe, K.K.M.
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Subramanian, S.
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Ekesi, S.
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Huis, A. van
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Borgemeister, C.
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[The nutritive value of black soldier fly larvae reared on common organic waste streams in Kenya]
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The nutritive value of black soldier fly larvae reared on common organic waste streams in Kenya
In cassava chips sampled on a local market in Cotonou, Republic of Benin, West Africa, Dinoderus bifoveolatus Wollaston was the predominant pest. In olfactometer experiments, cassava chips infested by male D. bifoveolatus were highly attractive to both sexes of the beetle, suggesting that male D....
Borgemeister, C.
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Schäfer, K.
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Goergen, Georg E.
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Awande, S.
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Setamou, M.
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Poehling, H.M.
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Scholz, D.
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[Hostfinding behavior of Dinoderus bifoveolatus (Coleoptera: Bostrichidae), an important pest of stored cassava: the role of plant volatiles and odors of conspecifics]
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Hostfinding behavior of Dinoderus bifoveolatus (Coleoptera: Bostrichidae), an important pest of stored cassava: the role of plant volatiles and odors of conspecifics
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.
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Schulthess, F.
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Bosque Pérez, N.A.
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Poehling, H.M.
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Borgemeister, C.
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[Bionomics of Mussidia nigrivenella (Lepidoptera: Pyralidae) on three host plants]
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Bionomics of Mussidia nigrivenella (Lepidoptera: Pyralidae) on three host plants
The effects of egg clutch size on development and survivorship of the larger grain borer, Prostephanus truncatus (Horn) (Col.: Bostrichidae) on maize were measured in the laboratory using single grains of the white maize variety, TZSR-W, at 30 ± 2°C and 70 ± 5% RH. Varying numbers of P. truncatus...
Laboratory experiments using whole cobs were conducted to examine the effect of varying densities of the larger grain borer, Prostephanus truncatus and the maize weevil, Sitophilus zeamais on rate of population increase by the histerid beetle, Teretriosoma nigrescens, a predator primarily of P. t...
Ayertey, J.N.
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Meikle, W.G.
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Borgemeister, C.
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Camara, M.
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Markham, R.H.
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[Studies on predation of Prostephanus truncatus (Horn) (Col., Bostrichidae) and Sitophilus zeamais Mots. (Col., Curculionidae) at different densities on maize by Teretriosoma nigrescens Lewis (Col., Histeridae)]
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Studies on predation of Prostephanus truncatus (Horn) (Col., Bostrichidae) and Sitophilus zeamais Mots. (Col., Curculionidae) at different densities on maize by Teretriosoma nigrescens Lewis (Col., Histeridae)
This study aimed at an assessment of the potential of the egg parasitoid Telenomus isis (Polaszek) as a biological control agent of cereal stem borers. Therefore, the effects of temperature, host species, host age, and time of host deprivation on the development and the reproductive potential of ...
Chabi-Olaye, A.
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Schulthess, F.
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Poehling, H.M.
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Borgemeister, C.
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[Factors affecting the biology of Telenomus isis (Polaszek) (Hymenoptera : Scelionidae), an egg parasitoid of cereal stem borers in West Africa]
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Factors affecting the biology of Telenomus isis (Polaszek) (Hymenoptera : Scelionidae), an egg parasitoid of cereal stem borers in West Africa
Geographic distribution, relative importance, and effect of lepidopterous stem and ear borers on maize, Zea mays L., were studied in the humid forest and the mid-altitude zones of Cameroon from 1994 to 1997. Six villages were chosen in the forest zone and grouped into three blocks representing gr...
Ndemah, R.
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Schulthess, F.
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Korie, S.
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Borgemeister, C.
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Cardwell, K.F.
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[Distribution, relative importance and effect of lepidopterous borers on maize yields in the forest zone and midaltitude of Cameroon]
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Distribution, relative importance and effect of lepidopterous borers on maize yields in the forest zone and midaltitude of Cameroon
Delta traps baited with maize cobs, which were infested each with one male Prostephanus truncatus (Horn) (Col.: Bostrichidae), were distributed in southern Benin and collected after one, two, three and four weeks. The numbers of P. truncatus caught during the different trapping periods were not s...
Scholz, D.
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Borgemeister, C.
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Meikle, W.G.
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Markham, R.H.
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Poehling, H.M.
,
[Infestation of maize by Prostephanus truncatus initiated by maleproduced pheromone]
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Infestation of maize by Prostephanus truncatus initiated by maleproduced pheromone