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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...


Vowotor, K.A.Meikle, W.G.Ayertey, J.N.Borgemeister, C.Markham, R.H.[Intraspecific competition in larvae of the larger grain borer, Prostephanus truncatus (Horn) with maize grains]Intraspecific competition in larvae of the larger grain borer, Prostephanus truncatus (Horn) with maize grains

The biology of Sitophilus zeamais Motschulsky, an important pest of stored commodities, is well described in the literature. To integrate current knowledge and to understand better the population dynamics of this species in rural maize, Zea mays L., stores, we developed a distributed-delay, demog...


Meikle, W.G.Holst, N.Markham, R.H.[Population simulation model of Sitophilus zeamais (Coleoptera: Curculionidae) in grain stores in West Africa]Population simulation model of Sitophilus zeamais (Coleoptera: Curculionidae) in grain stores in West Africa

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.Meikle, W.G.Borgemeister, C.Camara, M.Markham, R.H.[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)]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)

A fungal entomopathogen, Beauveria bassiana, was used to treat maize ears placed in traditional grain stores against Prostephanus truncatus in a field experiment conducted from September 1997 to March 1998 in the Benin Republic, West Africa. Treatments included oil-based spray with and without co...


Meikle, W.G.Cherry, A.J.Holst, N.Hounna, B.Markham, R.H.[The effects of an entomopathogenic fungus, Beauveria bassiana (Balsamo) Vuillemin (Hyphomycetes), on Prostephanus truncatus (Horn) (Col: Bostrichdae), Sitophilus zeamais (Col: Curculionidae) and grain losses in stored maize in the Benin Republic]The effects of an entomopathogenic fungus, Beauveria bassiana (Balsamo) Vuillemin (Hyphomycetes), on Prostephanus truncatus (Horn) (Col: Bostrichdae), Sitophilus zeamais (Col: Curculionidae) and grain losses in stored maize in the Benin Republic

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.Borgemeister, C.Meikle, W.G.Markham, R.H.Poehling, H.M.[Infestation of maize by Prostephanus truncatus initiated by maleproduced pheromone]Infestation of maize by Prostephanus truncatus initiated by maleproduced pheromone

Weekly Prostephanus truncatus (Horn) ßight activity, measured as the density of captured beetles in pheromone baited traps, was monitored for 76 consecutive weeks at 16 sites inside the Lama forest in southern Benin and at four sites in maize farmland just outside the forest. Prostephanus truncat...


Nansen, C.Meikle, W.G.Korie, S.[Spatial analysis of Prostephanus truncatus (Horn) (Coleoptera:Bostrichdae) flight activity near maize stores and in different forest types in southern Benin, West Africa]Spatial analysis of Prostephanus truncatus (Horn) (Coleoptera:Bostrichdae) flight activity near maize stores and in different forest types in southern Benin, West Africa
Adda, C.Borgemeister, C.Meikle, W.G.Markham, R.H.Olaleye, I.Abdou, K.S.Zakari, M.O.[First record of the larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae), in the Republic of Niger]First record of the larger grain borer, Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae), in the Republic of Niger

. A distributed-delay, demographic simulation model of Prostephanus tnmcatus (Horn) populations in rural maize (Zea mays L.) stores was developed and validated. Developmental and mortality parameters for eggs, larvae, and pupae, and the life span and fecundity data for adult insects, were estimat...


Meikle, W.G.Holst, N.Scholz, D.Markham, R.H.[Simulation model of Prostephanus truncatus (Coleoptera: Bostrichidae) in rural maize stores in the Republic of Benin]Simulation model of Prostephanus truncatus (Coleoptera: Bostrichidae) in rural maize stores in the Republic of Benin

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