Pest management strategies for<i>Prostephanus truncatus</i>(Horn) (Coleoptera; Bostrichidae) as a pest of stored maize grain: Present status and prospects

McFarlane, J. A.

doi:10.1080/09670878809371226

Cited by 23 publications

(10 citation statements)

References 14 publications

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“…This agrees with casual observations from both the laboratory and field (Hodges, 1986). However, there are few studies on the flight behaviour of P. truncatus and this has been cited as an area for further research (McFarlane, 1988). Precise in-formation on flight in relation to the pheromone mixture may help in the planning of the release of T. nigrescens and the use of traps for general monitoring.…”

Section: Introductionsupporting

confidence: 84%

Flight periodicity of Prostephanus truncatus and longevity of attraction to synthetic pheromone

Tigar

Key

Flores-S

et al. 1993

Entomologia Exp Applicata

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Double‐sided sticky traps were baited with polythene vials containing synthetic components of the aggregation pheromone of Prostephanus truncatus (Horn) and used to investigate the effect of time of day on capture of this insect. P. truncatus exhibited a bimodal pattern of flight activity with a major peak between 18.00 and 21.00 h, and a smaller peak between 07.00 and 09.00 h. The effective life of the pheromone bait was also investigated over 33 days. The highest numbers of P. truncatus were caught during the first 8 days and the majority of the beetles were caught within 14 days. Catches then showed a steady decline. Captures of the predatory histerid Teretriosoma nigrescens Lewis, were much lower than those of P. truncatus and showed fluctuations which did not appear related to numbers of its prey. Environmental factors such as rainfall, temperature, wind and trap positioning appeared to influence results, especially when considered over a short time scale.

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Section: Introductionsupporting

confidence: 84%

Flight periodicity of Prostephanus truncatus and longevity of attraction to synthetic pheromone

Tigar

Key

Flores-S

et al. 1993

Entomologia Exp Applicata

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“…In many of the outbreak countries, the beetle has become the most serious pest of farm-stored maize and dried cassava (e.g. McFarlane, 1988;Markham et al, 1991). Since P. truncatus belongs to a family of wood-boring beetles (Freude et al, 1969) and has been found to reproduce in certain woody plants in laboratory experiments (Nang'ayo, 1996) and in the field (RamirezMartinez et al, 1994;Borgemeister et al, 1998a), the pest may only be facultatively associated with these stored commodities.…”

Section: Introductionmentioning

confidence: 98%

Flight initiation and flight activity in Prostephanus truncatus (Coleoptera: Bostrichidae)

Scholz¹,

Borgemeister²,

Markham³

et al. 1998

Bull. Entomol. Res.

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In an outdoor experimental set-up, the number of Prostephanus truncatus (Horn) flying from maize cobs was recorded over 38 observation weeks. Flight activity in the field was recorded for 50 weeks with three pheromone traps, each placed at c. 100-300 m from the first experimental set-up. Multiple regression analyses revealed that both flight initiation and flight activity were partly influenced by mean temperatures, but were not directly related. Flight initiation was mainly dependent on population density. An additional experiment showed that sex ratios among pheromone trap catches were not correlated with the number of beetles caught; sex ratios were female-biased throughout the year. Seasonal fluctuations in flight activity recorded with pheromone traps are mainly dependent on changes in the number and sizes of beetle populations in a given area, as well as on breeding site availability and suitability.

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“…In Africa, where subsistence grain production supports the livelihood of majority of the population, grain loss caused by storage insect pests such as species of Sitophilus (Curculionidae) and Tribolium (Tenebrionidae) can be critical (GOLOB and TYLER, 1994). Recently, another major stokage beetle pest, the larger grain borer, Prostephanus truncatus (Horn) (Bostrichidae), native to Mexico and Central America, has become established in East and West Africa (MCFARLANE, 1988;MARKHAM et al, 1994). This beetle is currently a more serious pest of stored maize and cassava in parts of sub-Saharan Africa than its native Central America (DICK, 1988).…”

Section: Introductionmentioning

confidence: 99%

Biological activity of 1,8 cineole, a major component of essential oil of Ocimum kenyense (Ayobangira) against stored product beetles

Obeng‐Ofori

Reichmuth

Jembere

et al. 1997

J Applied Entomology

158

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The efficacy of I ,8 cineole as repellent, toxicant and grain protectant against Sitopldus granarius, S. zeamuis, Triholium castaneunz and Prostephanus truncatus was investiaged in the laboratory using contact toxicity, grain treatment and repellency assays. 1,8 cineole applied topically or imprenated on filter paper, whole wheat as well as maize grains was highly toxic to all the four beetle species. Beetle mortality was dose-dependent with the highest dose of 10 pl/insect evoking 100% mortalities in the beetles after 24 h exposure. 1,8 cineole was more toxic in grain than on filter paper since the lowest dosage of 0.5 pl/kg controlled all beetles exposed. There was, however, a highly significant loss of toxicity after only 24 h following treatment, irrespective of dosage applied. Development of eggs amd immature stages within grain kernels as well as progeny emergence were completely inhibited in treated grain. 1,8 cineole evoked strong repellent action against S. granarius and S. zeamuis but was moderately repellent to T. castanum and P. truncatus. The protectant potential of products derived from 0. kenyense against insect damage in traditional grain storage in Africa is discussed.

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Pest management strategies forProstephanus truncatus(Horn) (Coleoptera; Bostrichidae) as a pest of stored maize grain: Present status and prospects

Cited by 23 publications

References 14 publications

Flight periodicity of Prostephanus truncatus and longevity of attraction to synthetic pheromone

Flight periodicity of Prostephanus truncatus and longevity of attraction to synthetic pheromone

Flight initiation and flight activity in Prostephanus truncatus (Coleoptera: Bostrichidae)

Biological activity of 1,8 cineole, a major component of essential oil of Ocimum kenyense (Ayobangira) against stored product beetles

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