Origin:
Uncertain, as it is found commonly throughout the world in warm climates. However, since 10 species in the genus Ferrisia are found in the U.S. it is believed that this species may be native to North America.
Biology:
This species attacks a wide variety of crops and ornamental plants, and is found throughout the warmer climates in the U.S. as well as Hawaii and most of the Pacific region. It feeds on all parts of a plant including the roots, particularly in dry weather when the soil provides needed moisture. The insects are mobile, but tend to remain in localized groups so that large populations accumulate together. Females produce living nymphs next to them and their young often develop in the same general location. Development from egg to adult is about 40 days.
Identification:
An easily identified mealybug, with 2 dark stripes running front to back on the top of the body in the adult female. The margins of the body are nearly without wax protrusions, but two medium-length filaments protrude from the posterior end. The entire body is lightly coated with white powdery wax.
Characteristicts Important to Control:
A large number of parasites and predators attack this mealybug, and on ornamental plantings may be sufficient to keep the numbers at a tolerable level. If control is necessary a soil-applied systemic insecticide can be effective for mealybugs feeding on foliage. Horticultural oils and insecticidal soaps may be useful for those on stems or bark.
