Yokoyama, V.Y, Miller, G.T., & Crisosto, C.H. 2001 Pest response in packed table grapes to low temperature storage combined with slow-release sulfur dioxide pads in basic and large-scale tests.. Journal of Economic Entomology 94(4): 984-988.

Notes: The effect of low temperature storage combined with slow release sulfur dioxide pads was determined in basic laboratory and large-scale commercial tests on western flower thrips, Frankliniella occidentalis Pergande; grape mealybug, Pseudococcus maritimus (Ehrhorn); Pacific spider mite, Tetranychus pacificus McGregor; two-spotted spider mite, Tetranychus urticae Koch; and omnivorous leafroller, Platynota stultana Walshingham, Temperatures within the foam containers among the packed clusters decreased from ambient to 2 degreesC within approximately 1 d and ranged from 0.4 to 1.7 degreesC in all tests. Sulfur dioxide concentrations in the foam containers ranged between 0.2 and 1.6 ppm during the 1- to 6-wk storage period in basic tests and 0.5-1.1 ppm during the 1- to 8-wk storage period in the large-scale test. Western flower thrips was completely controlled by a :l-wk exposure. Grape mealybug mortality was greater than or equal to 93% after 2-5 wk exposures and 100% after a 6-wk exposure in basic tests. Mortality of grape mealybug and two-spotted spider mite increased significantly at greater than or equal to 3-wk exposures and Pacific spider mite mortality increased significantly at greater than or equal to4-wk exposures. The treatment resulted in <8% survival of grape mealybug and <1% survival of Pacific spider mite in the large-scale test. The combination treatment offers an economical method to attain quarantine control of certain insects and mites.