Journal of Pest Science (2017) 90, 379-387

Salehe Abbar, M.W. Schilling, R. Jeff Whitworth and Thomas W. Phillips (2017)
Efficacy of selected pesticides against Tyrophagus putrescentiae (Schrank): influences of applied concentration, application substrate, and residual activity over time
Journal of Pest Science 90 (1), 379-387
Abstract: Dry-cured ham is protected from arthropod infestations using the fumigant methyl bromide. Tyrophagus putrescentiae (Schrank), known as the cheese or ham mite, decreases the quality and quantity of dry-cured hams during the aging process and is a serious economic threat to dry-cured ham companies. Methyl bromide is a strong ozone-depleting substance that is scheduled to be phased out from most uses in the near future. Consequently, developing effective, feasible, and economic alternatives to methyl bromide is the main purpose of the current project. More than ten registered residual pesticides were assessed for toxicity with glass vials treated with different concentrations. Twenty mites were transferred to each vial for 24 h of exposure on contact. Persistence of three of these residual pesticides was evaluated over a 2-month period by applying the recommended label rates to different surfaces. Results indicated that the commercial products of deltamethrin plus chlorpyrifos-methyl, chlorphenapyr, and malathion showed promising results for contact toxicity against mites, and chlorphenapyr was highly effective at very low concentrations. Chlorphenapyr was the only pesticide applied to metal, concrete, and wood that was effective at controlling ham mites for 8 weeks. These pesticides are currently registered for use in similar contexts, so they could be considered as new potential control measures for ham mites in ham plants.
(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): Thomas W. Phillips

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tyrophagus putrescentiae	Stored animal products