Blumberg, D., Gross, S., Steinberg, S.H., Carvalho, C.J., Franco, J.C., & Mendel, Z. 1997 Biological control of the citrus mealybug (Homoptera: Pseudococcidae) in outdoor crops - still a challenge.. 11th International Entomophagous Insects Workshop
Notes: Conference held on July 12-16, 1997 in Madison, Wisconsin; more than 60 species of natural enemies were recorded from Planococcus citri; discussion of reasons for inefficient control by these enemies.