A laboratory simulation of residual populations of stored product pests and an assessment of their susceptibility to a contact insecticide

Pinniger, David

doi:10.1016/0022-474x(74)90009-5

Cited by 20 publications

(8 citation statements)

References 6 publications

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“…Generally, laboratory studies show excellent results with all compounds. However, Þeld populations may be able to avoid pesticide contact in time and space (Pinniger 1974, Barson 1991 or feed on untreated media after pesticide exposure, thereby increasing the probability of recovery (Arthur 2000a, b). Our data suggest that crack and crevice applications, unless applied to known refugia, are not an effective T. castaneum management strategy.…”

Section: Discussionmentioning

confidence: 99%

Monitoring Tribolium castaneum (Coleoptera: Tenebrionidae) in Pilot-Scale Warehouses Treated with Residual Applications of (S)-Hydroprene and Cyfluthrin

Toews

Campbell

Arthur

et al. 2005

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Pilot-scale warehouses, artificially infested with all life stages of Tribolium castaneum (Herbst), were used to evaluate the efficacy of two contact insecticides, (S)-hydroprene and cyfluthrin, and to determine the effect of insecticide treatments on insect captures in food- and pheromone-baited pitfall traps. Two application strategies were compared; insecticides were applied at the labeled rate either around the inside perimeter of the warehouse or in a band around the base of shelf units containing discrete food patches (10 g of wheat flour) infested with T. castaneum. Insect populations were assessed weekly for 6 wk by recording number of dead adults on the warehouse floor; number of larvae and adults captured in pitfall traps; and number of larvae, pupae, and adults recovered from food patch samples. There were significantly more dead adults in warehouses treated with cyfluthrin than with (S)-hydroprene or water (control treatment). However, food patch samples showed no detectable differences in quantity of larvae, pupae, or adults among any treatments. Pitfall traps detected fewer larvae starting the fourth week of the study in the warehouses treated with cyfluthrin around the shelf perimeter. Rate of larval capture in traps increased overall with increasing larval populations, but it was more pronounced in traps located closer to the food patches. Number of adults captured in pitfall traps reflected adult mortality in cyfluthrin-treated warehouses. Capture of larvae and adults was greater near the source of the infestation than elsewhere in the warehouse, suggesting that trapping data should be considered when precision targeting insecticide applications in the field.

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Section: Discussionmentioning

confidence: 99%

Monitoring Tribolium castaneum (Coleoptera: Tenebrionidae) in Pilot-Scale Warehouses Treated with Residual Applications of (S)-Hydroprene and Cyfluthrin

Toews

Campbell

Arthur

et al. 2005

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“…The provision of a harbourage in insecticidetreated arenas is known to substantially increase the time that beetles can survive exposure (Pinniger, 1974;Wildey, 1977). In these studies this increase of survival time in treated arenas was linked with the relatively small proportion of beetles to be observed wandering outside the harbourage in controls.…”

Section: Discussionmentioning

confidence: 99%

“…The lowest average number in the present experiments was about eight for the LD 15 : 9 h arenas with all food in the refuge. Both Pinniger (1974) and Wildey (1977) held their beetles in continual darkness but with the metal refuge more or less filled with wheat instead of containing only twenty grains. This would have influenced the tendency of beetles to wander.…”

Section: Discussionmentioning

confidence: 99%

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A circadian rhythm influencing foraging behaviour in the saw‐toothed grain beetle Oryzaephilus surinamensis

Bell

Kerslake

1986

Physiological Entomology

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Adults of Oryzaephilus surinamensis (L.) (Coleoptera, Silvanidae) placed in an open arena containing a refuge showed a cyclic pattern of activity in light, dark (LD) cycles when food in the form of damaged wheat grains was placed in the arena outside the refuge. Placing food in the refuge reduced cyclic change and lowered the general activity of the beetles. Batches of fifty insects conditioned in LD 9 : 15 h or 15 : 9 h at 25"C, 65% r.h., and transferred to continuous darkness (DD) at the end of a photophase, showed a circadian rhythm of foraging activity of periodicity near 24 h. Those transferred to continuous light at the end of a scotophase showed a 6 h delay in the onset of the next peak of activity, but subsequent peaks, although damped, revealed a periodicity near that in DD. The mean number of beetles wandering in the arena ranged from about eight in LD 15:9 h with all food in the refuge to about twenty-one in LD 9:15 h with all food in the arena.

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“…These may subsequently act as a source of reinfestation (Jacobson & Pinniger, 1982). The time required to eliminate laboratory populations of susceptible beetles on a fenitrothion-treated surface was increased by up to 10-fold when beetles could avoid continuous insecticide exposure by moving into food-filled refuges (Pinniger, 1974).…”

Section: Introductionmentioning

confidence: 99%

Population biology of the saw-toothed grain beetle, Oryzaephilus surinamensis (Coleoptera: Silvanidae), in an experimental model of a fabric treatment

Mason

1996

Bull. Entomol. Res.

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The response of populations of the saw-toothed grain beetle, Oryzaephilus surinamensis (Linnaeus) (7022/1 strain), to insecticide treatments of different extent and standard concentration was studied over 16 weeks (no more than two generations) in experimental bins containing a wheat bulk and 16 kibbled wheat-filled refuges. Populations comprised initially low frequencies of resistant phenotypes, as would occur in natural populations where resistant alleles had newly arisen. The degree of control achieved was related to the extent of treatment. Distribution of adult beetles was greatly influenced by the effects of insecticide treatment superimposed on intrinsic microhabitat preferences. Live beetles were recovered from all bins, although numbers sampled from wheat bulks of treated bins were 1-6% of that of the untreated bin. More live beetles were sampled from wheat bulks than were recovered from all respective refuges, except in one treated bin. Live beetles were more numerous in refuges in corners and in those furthest from refuges on treated walls. Beetles were more likely to die in refuges in corners and lower down in the bins or in refuges on treated walls adjacent to untreated walls. Although treatments produced heavy mortality, the frequencies of resistant individuals did not increase significantly. This could either be because treatments were equally successful in eliminating homozygous susceptible and heterozygous individuals, or because selection in favour of resistant individuals was too weak to be detectable, especially if there were negative correlations between viability and fecundity. Significant genetic structuring of refuge subpopulations with respect to the resistance phenotypes was noted and appeared to be related to behavioural preferences for microhabitat.

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A laboratory simulation of residual populations of stored product pests and an assessment of their susceptibility to a contact insecticide

Cited by 20 publications

References 6 publications

Monitoring <I>Tribolium castaneum</I> (Coleoptera: Tenebrionidae) in Pilot-Scale Warehouses Treated with Residual Applications of (<I>S</I>)-Hydroprene and Cyfluthrin

Monitoring <I>Tribolium castaneum</I> (Coleoptera: Tenebrionidae) in Pilot-Scale Warehouses Treated with Residual Applications of (<I>S</I>)-Hydroprene and Cyfluthrin

A circadian rhythm influencing foraging behaviour in the saw‐toothed grain beetle Oryzaephilus surinamensis

Population biology of the saw-toothed grain beetle, Oryzaephilus surinamensis (Coleoptera: Silvanidae), in an experimental model of a fabric treatment

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