Journal of Economic Entomology (1995) 88, 1106-1112

Stephen Goodwin, Grant Herron, Neil Gough, Tony Wellham, Jeanette Rophail and Russell Parker (1995)
Relationship between insecticide-acaricide resistance and field control in Tetranychus urticae (Acari: Tetranychidae) infesting roses
Journal of Economic Entomology 88 (5), 1106-1112
Abstract: Field populations of the twospotted spider mite, Tetranychus urticae Koch, were collected and tested to determine levels of resistance. Resistance was detected to fenbutatin-oxide (resistance factor [RF], 2:6-464 at LC₉₅), propargite (RF, 3.9-135 at LC₉₅), and fluvalinate (RF, 11-51 at LC₉₅). Field populations of T. urticae were then sprayed with each acaricide and numbers of mites present monitored weekly to determine the efficacy of the spray. Field control failure of propargite and fluvalinate was detected between RFs 88-135 and 23-51, respectively, at the LC₉₅ level. There was no clear relationship between fenbutatinoxide resistance and field control. Field control of T. urticae with fenbutatin-oxide appeared to be influenced by factors other than resistance.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Grant A. Herron

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tetranychus urticae