Flight initiation and flight activity in <i>Prostephanus truncatus</i> (Coleoptera: Bostrichidae)

Scholz, D.; Borgemeister, Christian; Markham, R.H.; Poehling, Hans‐Michael

doi:10.1017/s0007485300026067

Cited by 8 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar peaks in catch have been reported previously from Mono province in Benin (Borgemeister et al, 1997b) but not from the coastal zone where there is a single annual rise and fall, presumably because humidities there do not drop below 50% during the period of the Harmattan. In the case of the Benin coastal zone, P. truncatus trap catch was related only to mean temperature (Borgemeister et al, 1997b;Scholz et al, 1998), a finding consistent with the current study in years when humidity is not limiting. The observed response of the beetle to low humidity conditions confirms previous reports.…”

Section: Discussionsupporting

confidence: 90%

“…Furthermore, it has been shown that there is a significant positive correlation between trap catch and the likelihood that stored food becomes infested (Birkinshaw et al, 2002). This indicates that traps give an effective measure of the dispersing population that threatens stored food, although this population is skewed by sex, because 60-70% is female (Hodges et al, 1998;Scholz et al, 1998), and by age, because young beetles are more likely to fly and are more active fliers (Fadamiro, 1996;Scholz, 1997). However, pheromone traps are expensive and time consuming to deploy so their long-term use by extension services in developing countries is unlikely to be sustainable.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Can observation of climatic variables be used to predict the flight dispersal rates of Prostephanus truncatus?

Hodges¹,

Addo²,

Birkinshaw³

2003

Agri and Forest Entomology

View full text Add to dashboard Cite

1 Attack by Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae) on the maize and cassava stored by small-holder farmers in Africa is sporadic, varying considerably within and between years. The risk that food in store will become infested is related to the number of beetles dispersing by flight. A means of predicting years with high dispersal rates is needed to warn farmers when to be vigilant. 2 The relationship between climatic variables and pheromone trap catches was observed in a forest-savannah transition zone in Ghana. These observations were used to devise a model using a mix of biological and empirical rules that operate on temperature and humidity data. The predicted and actual trap catch deviated by only þ5% to À1% in years when there were high dispersal rates. 3 The first part of the model estimates the numbers of beetles with potential for dispersal. The second part predicts the proportion likely to disperse. This is based on the apparent effect that those P. truncatus developing under low temperature conditions (about 24 C) have a lowered propensity for flight, a response previously observed in a related species. 4 The model was validated using climate data and trap catches from a woodlandsavannah zone and a short grass steppe zone. With minor adjustment, the model worked well for these two habitats.

show abstract

Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Can observation of climatic variables be used to predict the flight dispersal rates of Prostephanus truncatus?

Hodges¹,

Addo²,

Birkinshaw³

2003

Agri and Forest Entomology

View full text Add to dashboard Cite

show abstract

“…The spread of another Bostrychid, the larger grain borer Prostephanus truncatus, which was accidentally introduced with maize imports to Africa, was also monitored successfully with pheromone traps for enabling better control methods of this invasive species (Richter & Biliwa 1991, Scholz et al 1998. In its native habitats in South-and Central-America like Mexico (Hodges 1986), mark-release-recapture studies revealed maximum natural dispersion capabilities of P. truncatus to be 250 to 340 m in 24 hours depending on the wind speed and direction (Rees et al 1991, Farell & Key 1992.…”

Section: Present Situationmentioning

confidence: 99%

“…Now that P. truncates is present in the African zoogeographic zone it is important to know whether this insect is tight to the post-harvest situation with possible dispersion following grain trade or whether the beetle establishes as a new faunaelement in African forests just like in its Central-American geographic origin. Pheromone-baited trapping of the larger grain borer in forest areas of Benin proved the presence of this pest in natural habitats (Borgemeister et al 1998), indicating its faunistic integration, although the non-agricultural host plants for feeding and breeding are not yet identified (Nansen et al 2002).…”

Section: Present Situationmentioning

confidence: 99%

More than a pest management tool — 45 years of practical experience with insect pheromones in stored-product and material protection

Plarre

2013

J Plant Dis Prot

View full text Add to dashboard Cite

The application of pheromone-baited traps to control pest insects in stored food or materials has become well established over the past decades. The main pheromone components of all major stored-product and material pests have been identified. Pest monitoring with pheromone traps is a key factor in integrated pest management to estimate population density build-ups and they may be used to define economic threshold levels. Male-attracting sex pheromones, e.g. for stored-product pyralids, the clothes moths, and some anobiid beetles, are especially effective in this aspect.Monitoring pest population can facilitate optimal spatial and temporal control strategies, including efficacy evaluation of the implemented control measures. In addition to the sex pheromones, some beetles, such as grain and flour beetles, utilize aggregation pheromones, which attract both sexes. Implementation of these pheromones for mass trapping, which works well for the control of bark beetles in the forest environment, has been less successful for stored-product protection for various reasons and is thus not an established means of control.When the monitoring tools are used in landscape areas, scrublands, forests, and away from anthropogenic influenced environments, natural reservoirs of a pest species and sources of new infestations can be identified. In addition to an economically driven adoption of pheromone traps, they may also provide information of a pest´s general biology. Because stored-product and material pests must be considered neozoons in most parts of the world, their occurrence in natural habitats indicates a species' autecological capability to successfully compete with native species and to become faunistically established in non-synanthropic environments outside their zoogeographic origin. This review focuses on the use of pheromone traps for monitoring in outdoor situations.

show abstract

“…Synthetic pheromone traps catch predominantly young, mated females, though males are also attracted (Scholz et al, 1997a(Scholz et al, ,b 1998a. The proportion of the population of a maize store that disperses is related to population density and the status of the food substrate (Scholz et al, 1998b). Flying adults can be found all year round, but there are strong peaks of flight activity that have been correlated with rainfall and other weather events (Nang'ayo et al, 1993;Borgemeister et al, 1997b;Nansen et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Biological control of the larger grain borer Prostephanus truncatus (Coleoptera: Bostrichidae) in Kenya using a predatory beetle Teretrius nigrescens(Coleoptera: Histeridae)

Hill

Nang’ayo

Wright

2003

Bull. Entomol. Res.

View full text Add to dashboard Cite

The establishment of the predatory histerid beetle, Teretrius nigrescens Lewis, following its field release in south eastern Kenya in 1992, and its impact on populations of the larger grain borer, Prostephanus truncatus (Horn), in woodland habitats is evaluated. Pheromone trap catch data show a single strong peak of P. truncatus from November to January, coincident with the short rains. Comparisons of P. truncatus pheromone trap catches before and after predator establishment, and in areas with and without T. nigrescens, show a sustained decline of over 80% in P. truncatus abundance over a 5-year period, following the establishment T. nigrescens. Concurrent laboratory studies of the impact of T. nigrescens on populations of P. truncatus raised on a wood substrate showed a 77% reduction in the growth of the pest population. These results are compared with published findings of the impact of T. nigrescens as a biological control agent of P. truncatus in west Africa.

show abstract

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

Cited by 8 publications

References 20 publications

Can observation of climatic variables be used to predict the flight dispersal rates of Prostephanus truncatus?

Can observation of climatic variables be used to predict the flight dispersal rates of Prostephanus truncatus?

More than a pest management tool — 45 years of practical experience with insect pheromones in stored-product and material protection

Biological control of the larger grain borer Prostephanus truncatus (Coleoptera: Bostrichidae) in Kenya using a predatory beetle Teretrius nigrescens(Coleoptera: Histeridae)

Contact Info

Product

Resources

About