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Pest Information

Gelatinous Whitefly

Gelatinous Whitefly

  • Latin Name: Aleuroplatus gelatinosus
  • Common Name: Gelatinous Whitefly
  • Latin Family Name: Aleyrodidae
  • Other Names: N/A

Pest Details

Gelatinous Whitefly
Gelatinous Whitefly
Gelatinous Whitefly


Likely native to the western U.S.


A western species found only on oaks, and of minor importance. Typical whitefly life cycle of eggs laid over the surface of the leaf hatching to the mobile first instar nymph. As this moves to the second instar the legs are lost and the insect becomes sessile, feeding in one place through the next nymph stages and the pupa.


The pupa stage is the distinctive stage of this species. It is oval, flattened, and shiny black on top without any tufts or patches of white wax. There are 3 distinctive needle-like filaments of wax protruding from the margin of the body, 2 at the posterior sides and 1 in front. The name of the species is given due to the wide fringe of clear, shiny wax that surrounds the pupa, being nearly as wide as the body of the insect itself.

Characteristicts Important to Control:

Initiating control as soon as a few whiteflies are noticed will increase the chances of success. Contact insecticides often provide very little control due to the repellency of the wax on the insect and the occurrence of resistance to may insecticides. A systemic product that can penetrate the plant’s tissues may be most effective. Horticultural oils also will help by coating the insects and smothering them. Reapplications at 5 to 7 day intervals may be needed, and any sprays should be directed at the lower surface of the leaf and applied thoroughly.

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