Wolfenbarger, D.O. 1951 Dictyospermum scale control on avocados.. Florida Entomologist 34(2): 54-58.

Notes: Chrysomphalus dictyospermi is reputed to be the most important scale insect pest on avocado in Florida. Oil emulsion sprays tend to cause heavy leaf fall and are only partially effective. This paper reports on successful experiments with parathion for scale control.