Caprile, J.L., Varela, L.G., Pickel, C., Coates, W.W., Bentley, W.J., & Vossen, P.M. 2002 UC IPM Pest management guidelines: Apple.. Publication (University of California Cooperative Extension) 3432.

Notes: [http://www.ipm.ucdavis.edu/PDF/PMG/pmgapple.pdf; accessed February 2005.] Technical guidelines are provided for control of Diaspidiotus (Quadraspidiotus) perniciosus and Epidiaspis leperii as well as other insects and pests, diseases and weeds.