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A Water-Trap for Detecting Insects in Stored Grain1

Published online by Cambridge University Press:  31 May 2012

F. L. Waiters  and
G. A. Cox
F. L. Waiters
Affiliation:
Entomology Laboratory, Winnipeg, Manitoba
G. A. Cox
Affiliation:
Entomology Laboratory, Winnipeg, Manitoba
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Extract

Much of the losses due to insects in stored grain occur when infestations remain unnoticed because of infrequent or inadequate sampling, There is clearly a need for a simple, sensitive method of indicating the presence of insects in stored grain before they become sufficiently numerous to occur in grain samples.

At the Winnipeg laboratory, jars of water are sometimes used to increase the relative humidity above wheat containing cultures of rhe rusty grain beetle, Laemophloeus ferrugineus Steph. The fact that adults were often trapped in the water suggested a method of detecting insect infestations in stored grain. This paper reports field and laboratory experiments on the general usefulness of a water-trap to detect insects in stored grain.

Type
Articles
Information
The Canadian Entomologist , Volume 89 , Issue 4 , April 1957 , pp. 188 - 192
Copyright
Copyright © Entomological Society of Canada 1957

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References

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