Elkins, R.B., Van Steenwyk, R.A., Varela, L.G., & Pickel, C. 2000 Pests of pear.. UC Pest Management Guidelines 1999
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Notes: [http://www.ipm.ucdavis.edu/PMG/selectnewpest.pears.html]. This update to the University of California IPM Pest Management Guidelines contains descriptions and control recommendations for insects, arthropod and nematode diseases of pear in the U.S., including Epidiaspis leperii, Pseudococcus maritimus, P. obscurus and Quadraspidiotus perniciosus.
