Carter, W. 1952 Organic phosphates as systemic insecticides on pineapple plants.. Journal of Economic Entomology 45(6): 981-984.

Notes: The use of the organic phosphate insecticide, parathion, has become standard practice in Hawaii against the pineapple mealybug (Pseudococcus brevipes (Ckl.)). As a leaf spray, parathion is effective at low dosages, but shares with other leaf sprays the inability to reach and destroy colonies of mealybugs which may be established on the butts of the plants or on the base leaves below the soil surface. This paper describes some preliminary experiments on the use of parathion, systox and malathion as contact and systemic insecticides for the control of the pineapple mealybug.