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LABORATORY STUDIES OF A DEVICE TO DETECT INSECTS IN GRAIN, AND OF THE DISTRIBUTION OF ADULTS OF THE RUSTY GRAIN BEETLE, CRYPTOLESTES FERRUGINEUS (COLEOPTERA: CUCUJIDAE), IN WHEAT-FILLED CONTAINERS1

Published online by Cambridge University Press:  31 May 2012

S. R. Loschiavo
S. R. Loschiavo
Affiliation:
Research Station, Canada Department of Agriculture, Winnipeg, Manitoba
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Abstract

Various models of a device for detecting insects in stored grain were effective for trapping adults of the rusty grain beetle, Cryptolestes ferrugineux (Stephens), in laboratory experiments in which the insect population was known. At 30 ± 1 °C and 65 ± 5% relative humidity the number of beetles trapped increased with the time the traps were immersed in the grain. The number of beetles caught was affected by population density, duration of trapping period, position and contour of the trapping surface, location of the trap, size and shape of the container, and chemotactic stimuli. The distribution of beetles in wheat-filled containers was influenced by the shape and size of the container, duration of the sampling period, and geotactic factors. More beetles were recovered from wheat nearest the floor of filled containers of 3.8-1. capacity than from higher levels. In similar containers held in darkness, as many beetles were found near the surface as near the floor up to 14 days, but at 21 days nearly 41% were found near the floor. Drums of 105-1. capacity kept in darkness contained approximately equal numbers of beetles in the top and bottom one-third portions of wheat. More beetles were found in traps baited with rotting grain than in unbaited traps. Males and females were found in equal numbers in baited traps, or near the floor of wheat-filled containers.

Type
Articles
Information
The Canadian Entomologist , Volume 106 , Issue 12 , December 1974 , pp. 1309 - 1318
Copyright
Copyright © Entomological Society of Canada 1974

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References

Dolinski, M. G. and Loschiavo, S. R.. 1973. The effect of fungi and moisture on the locomotory behavior of the rusty grain beetle, Cryptolestes ferrugineus (Coleoptera: Cucujidae). Can. Ent. 105: 485–490.CrossRefGoogle Scholar
Dolinski, M. G., Loschiavo, S. R., and Hanec, W.. Field studies of some factors affecting the detection and distribution of the rusty grain beetle Cryptolestes ferrugineus (Stephens). Coleoptera: Cucujidae. (In preparation.)Google Scholar
Linsley, E. G. 1944. Natural sources, habitats, and reservoirs of insects associated with stored food products. Hilgardia 16: 187–222.CrossRefGoogle Scholar
Loschiavo, S. R. Field tests of devices to detect insects in different kinds of grain storages. Can. Ent. (in press).Google Scholar
Loschiavo, S. R. and Atkinson, J. M.. 1967. A trap for the detection and recovery of insects in stored grain. Can. Ent. 99: 1160–1163.CrossRefGoogle Scholar
Loschiavo, S. R. and Atkinson, J. M.. 1969 (unpub.). A trap for detecting insects in grain. Brochure Manitoba Dept. Agric.Google Scholar
Loschiavo, S. R. and Atkinson, J. M.. 1973. An improved trap to detect beetles (Coleoptera) in stored grain. Can. Ent. 105: 437–440.CrossRefGoogle Scholar
Loschiavo, S. R. and Sinha, R. N.. 1966. Feeding, oviposition and aggregation by the rusty grain beetle, Cryptolestes ferrugineus (Coleoptera: Cucujidae) on seed-borne fungi. Ann. ent. Soc. Am. 59: 578–585.CrossRefGoogle Scholar
Watters, F. L. 1969. The locomotor activity of Cryptolestes ferrugineus (Stephens) (Coleoptera: Cucujidae) in wheat. Can. J. Zool. 47: 1177–1182.CrossRefGoogle Scholar