Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-24T18:58:29.413Z Has data issue: false hasContentIssue false

SOME EFFECTS OF WIND ON THE EUROPEAN RED MITE, PANONYCHUS ULMI (ACARINA: TETRANYCHIDAE)1

Published online by Cambridge University Press:  31 May 2012

Wm. L. Putman
Affiliation:
Research Station, Canada Department of Agriculture, Vineland Station, Ontario

Abstract

Larger populations of the European red mite, Panonychus ulmi (Koch), developed on artificially infested young peach trees protected by screen windbreaks than on unprotected trees. In the laboratory rather high air velocities were required to blow mites off the leaves. Agitation of leaves without contact between them had no effect on the mites. Whipping of leaves back and forth caused appreciable mortality of mites on them, and mortality was further increased when the leaves could beat together. It was concluded that wind causes considerable mortality of mites in peach orchards mostly through friction between leaves.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1970

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Putman, W. L., and Herne, D. H. C.. 1966. The role of predators and other biotic agents in regulating the population density of phytophagous mites in Ontario peach orchards. Can. Ent. 98: 808820.CrossRefGoogle Scholar
Whitehead, F. H. 1962. Experimental studies of the effect of wind on plant growth and anatomy. II. Helianthus annuus. New Phytol. 61: 5962.CrossRefGoogle Scholar
Whitehead, F. H., and Luti, R.. 1962. Experimental studies of the effect of wind on plant growth and anatomy. I. Zea mays. New Phytol. 61: 5658.CrossRefGoogle Scholar