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CONDITIONS GOVERNING THE DISTRIBUTION OF INSECTS IN THE FREE ATMOSPHERE*: PART IV DISTRIBUTIVE PROCESS OF ECONOMIC SIGNIFICANCE

Published online by Cambridge University Press:  31 May 2012

W. G. Wellington
W. G. Wellington
Affiliation:
Meteorological Service of Canada, Toronto, Ont.
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Extract

The economic entomologist is concerned with the eradication or control of insect infestations, or with the restriction of spread of pest-species. In the course of such work, he is often confronted with the appearance of new infestations in cleared or virgin areas. These infiltrations from other source regions originate, in part, from the gradual extensions of other foci by flights or migratory movements, and, also from the intervention of air currents.

Type
Articles
Information
The Canadian Entomologist , Volume 77 , Issue 4 , April 1945 , pp. 69 - 74
Copyright
Copyright © Entomological Society of Canada 1945

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References

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