Influence of temperature and humidity on survival, development period and adult sex ratio in Prostephanus truncatus (Horn) (Coleoptera, Bostrichidae)

Shires, S.W.

doi:10.1016/0022-474x(79)90018-3

Cited by 45 publications

(13 citation statements)

References 4 publications

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“…The sex ratio of the F1 was 1:1, which corresponds with the sex ratios stated for P. truncatus on maize (Shires, 1979;Vowotor et al, 1997). However, 64% of all beetles trapped with baited cobs were females.…”

Section: Discussionsupporting

confidence: 83%

Infestation of maize by Prostephanus truncatus initiated by male‐produced pheromone

Scholz¹,

Borgemeister²,

Meikle³

et al. 1997

Entomologia Exp Applicata

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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.

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Section: Discussionsupporting

confidence: 83%

Infestation of maize by Prostephanus truncatus initiated by male‐produced pheromone

Scholz¹,

Borgemeister²,

Meikle³

et al. 1997

Entomologia Exp Applicata

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“…comm.). Similar optimum temperatures have been reported for other aspects of the biology of P. truncatus; the optimum for development has been reported as between 27 ~ and 32 ~ (Shires, 1979), while Subramanyam et al (1987) reported more feeding by adult P. truncatus at 30 ~ than at other temperatures. Starvation seemed to have less effect at higher temperatures.…”

Section: Discussionsupporting

confidence: 75%

Flight initiation by Prostephanus truncatus in relation to time of day, temperature, relative humidity and starvation

Fadamiro

Wyatt

1995

Entomologia Exp Applicata

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Studies were carried out in the laboratory on the influences of time of day, temperature, relative humidity and starvation on flight initiation by Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae). Flight occurred throughout the 12 h photophase and at the beginning of the scotophase but peaked at 2–0 h before darkness. Temperature exerted a significant effect on flight. The frequency of flight take‐off increased with temperature over the range 20–30 °C but declined sharply at 35 °C. Flight activity increased with starvation up to a maximum at 2 days after which it began to decline.

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“…The pheromone lures used in these studies were the same as those used in the current study. It is not known whether females are more abundant than males in natural populations, but the sex ratio in laboratory cultures was found to be one: one by Shires (1979) and Vowotor et al (1997). It is therefore most likely our pheromone trap catches were dominated by females as well.…”

Section: Discussionmentioning

confidence: 84%

Sensitivity ofProstephanus truncatus(Coleoptera: Bostrichidae) Flight Activity to Environmental Variables in Benin, West Africa

et al. 2001

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Influence of temperature and humidity on survival, development period and adult sex ratio in Prostephanus truncatus (Horn) (Coleoptera, Bostrichidae)

Cited by 45 publications

References 4 publications

Infestation of maize by Prostephanus truncatus initiated by male‐produced pheromone

Infestation of maize by Prostephanus truncatus initiated by male‐produced pheromone

Flight initiation by Prostephanus truncatus in relation to time of day, temperature, relative humidity and starvation

Sensitivity ofProstephanus truncatus(Coleoptera: Bostrichidae) Flight Activity to Environmental Variables in Benin, West Africa

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