OCCURRENCE OF CYHEXATIN AND DICOFOL RESISTANCE IN THE EUROPEAN RED MITE, PANONYCHUS ULMI (KOCH) (ACARI: TETRANYCHIDAE), IN SOUTHERN ONTARIO

Author:

Pree D.J.,Wagner H.W.

Abstract

AbstractLaboratory bioassays showed the occurrence of 8.5-fold resistance to cyhexatin and ca. 15-fold resistance to dicofol in laboratory-selected populations of European red mite (Panonychus ulmi (Koch)). Surveys, in 1984, of 45 orchards, using field-collected mites exposed to discriminating concentrations of cyhexatin or dicofol, detected resistance to cyhexatin in ca. 29% of the populations. Resistance to dicofol was identified in 2 of 45 assays.

Publisher

Cambridge University Press (CUP)

Subject

Insect Science,Molecular Biology,Physiology,Ecology, Evolution, Behavior and Systematics,Structural Biology

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