Pest Management Science (2014) 70, 819-826

Sibel Yorulmaz-Salman and Recep Ay (2014)
Determination of the inheritance, cross-resistance and detoxifying enzyme levels of a laboratory-selected, spiromesifen-resistant population of the predatory mite Neoseiulus californicus (Acari: Phytoseiidae)
Pest Management Science 70 (5), 819-826
Abstract:
BACKGROUND
Neoseiulus californicus of the family Phytoseiidae is an effective predatory mite species that is used to control pest mites.
RESULTS
The LC₅₀ and LC₆₀ values of spiromesifen were determined on N. californicus using a leaf-disc method and spraying tower. A laboratory selection population designated SPR13 was found to have a 52.08-fold resistance to spiromesifen following 13 selection cycles. This population developed low resistance to hexythiazox and moderate cross-resistance to propargite, clofentezine, spirodiclofen, etoxazole and milbemectin. PBO, IBP and DEM synergised resistance 3.75-, 2.54- and 1.93-fold respectively. Crossing experiments revealed that spiromesifen resistance in the SPR13 population was intermediately dominant and monogenic. In addition, detoxifying enzyme activities were increased 2.74-fold for esterase, 3.09-fold for glutathione S-transferase and 2.17-fold for cytochrome P450 monooxygenase in the SPR13 population.
CONCLUSIONS
Selection for spiromesifen under laboratory conditions resulted in the development of spiromesifen resistance in the predatory mite N. californicus. Predatory mites that are resistant to pesticides are considered valuable for use in resistance management programmes within integrated pest control strategies.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Recep Ay

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance to pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Neoseiulus californicus (predator)