Knight, A.L., Christianson, B.A., & Unruh, T.R. 2001 Impacts of seasonal kaolin particle films on apple pest management.. Canadian Entomologist 133(3): 413-428.

Notes: The impact of multiple applications of the kaolin-based particle him M96-018 on the population density of selected pests of apple, Malus domestica (Borkh) (Rosaceae), and their natural enemy populations were measured in several Washington State orchards from 1997 to 1999. Fruit infestation by San Jose scale, Quadraspidiotus perniciosus (Comstock) (Hemiptera: Diaspididae), was significantly higher in treated plots than in untreated plots. No differences in pest densities occurred in plots treated for one versus two consecutive years.