Entomologia Experimentalis et Applicata (1997) 83, 53-61

D. Scholz, C. Borgemeister, W.G. Meikle, R.H. Markham and H.-M. Poehling (1997)
Infestation of maize by Prostephanus truncatus initiated by male-produced pheromone
Entomologia Experimentalis et Applicata 83 (1), 53-61
Abstract: 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 significantly different. Sixty-four percent of the trapped P. truncatus were females. Females attracted during the one-week trapping period produced a mean of 6.9 progeny during the seven days. The sex ratio of the progeny was 1:1. Trap catches with the infested cobs were on average 13 times lower than catches with 2 mg of the artificial pheromone. Estimation of P. truncatus densities in a maize store at the beginning of the storage period (based on laboratory data) revealed that small initial numbers of P. truncatus, possibly attracted by a single male, sufficed to initiate high infestation rates later in the storage season.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Christian Borgemeister, Hans-Michael Poehling, William G. Meikle, Richard H. Markham

Research topic(s) for pests/diseases/weeds:
pheromones/attractants/traps

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Prostephanus truncatus	Stored grain	Benin