Hostname: page-component-77c89778f8-rkxrd Total loading time: 0 Render date: 2024-07-21T02:12:54.243Z Has data issue: false hasContentIssue false
  • English
  • Français

SEX RATIO OF THE EUROPEAN RED MITE, PANONYCHUS ULMI (ACARINA: TETRANYCHIDAE), IN APPLE ORCHARDS IN NOVA SCOTIA1

Published online by Cambridge University Press:  31 May 2012

H. J. Herbert  and
K. P. Butler
H. J. Herbert
Affiliation:
Research Station, Canada Department of Agriculture, Kentville, Nova Scotia
K. P. Butler
Affiliation:
Research Station, Canada Department of Agriculture, Kentville, Nova Scotia
Get access Rights & Permissions [Opens in a new window]

Abstract

The number of male and female first generation Panonychus ulmi (Koch) were recorded from 13 apple orchards representing widely different levels of mite infestation on four different varieties. The average percentage of males was 27.5. Statistically significant differences were found among orchards, varieties, observers, and their interactions. No relationship between sex ratio and population density was evident.

Type
Articles
Information
The Canadian Entomologist , Volume 107 , Issue 8 , August 1975 , pp. 825 - 828
Copyright
Copyright © Entomological Society of Canada 1975

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

Blair, C. A. and Groves, J. R.. 1952. Biology of the fruit tree red spider mite, Metatetranychus ulmi Koch in southeast England. J. hort. Sci. 27: 14–43.Google Scholar
Fienberg, S. E. 1970. The analysis of multidimensional contingency tables. Ecology 51: 419–433.Google Scholar
Herbert, H. J. 1970. Limits of each stage in populations of the European red mite, Panonychus ulmi. Can. Ent. 102: 64–68.Google Scholar
Putman, W. L. 1970. Some aspects of sex in the European red mite, Panonychus ulmi. Can. Ent. 102: 612–617.Google Scholar
Ross, W. A. and Robinson, W.. 1922. Notes on the plum spider mite or European red mite. Rep. ent. soc. Ont. for 1921, 52: 33–42.Google Scholar
Snedecor, G. W. and Cochran, W. G.. 1967. Statistical methods, 6th ed. Iowa State University Press, Ames.Google Scholar