What Do Whiteflies Look Like?


Author: Gabrielle Marks
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Summary: Discover what whiteflies look like and how to identify this garden pest by characteristics and body parts.

Tags: What do whiteflies look like, characteristics of whitefly, how to identify whiteflies

Whiteflies are smaller than 7 mm long, more often 2-3 mm, and are usually covered with a white waxy film.

Stages: Whiteflies go through an incomplete metamorphosis beginning as an egg that moves through a nymphal stage before becoming an adult.

Mouthpart: Like all members of the order Homoptera, the whitefly has a pierce-sucking mouthpart that is located at the back of the head.

Wings: The order Homoptera is characterized by a set of four transparent wings with visible veins.  The wings of the whitefly appear opaque because they are covered in the white waxy scales that give this insect its color.  The forewings are characterized by a simple major vein.

Unlike other insect orders that have wings that lay against the body when not in flight, the wings of the order Homoptera create a roof-like structure over the insect.

Though very weak, whiteflies have the ability to fly and are known to travel short distances when the host plant is disturbed. They also undertake a migratory flight and have been known to travel a distance greater than three miles.

Antennae: During the larval stage the legs and the seven segmented antennae appear unusually long in relation to the size of the body.  They will ultimately grow into both as they molt into adulthood.

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Works Cited

McGraw-Hill Concise Encyclopedia of Science and Technology
Homoptera
New York: McGraw-Hill, 2006. print

UA Whitefly
About Whiteflies
http://whiteflytax.biosci.arizona.edu

| University of Minnesota
Radcliffe's IPM World Textbook
http://ipmworld.umn.edu







Expert Opinion 

Quote: "Adult whiteflies look like tiny white moths, but are more closely related to scale insects. They are only about 1/16 inch long and have four wings. The wings and body are covered with a fine white powdery wax. The immature stages (nymphs) which are found on the underside of leaves are flat, oval in outline, and slightly smaller than a pin head. They are light green to whitish and somewhat transparent. "

SourceWhiteflies on Landscape Ornamentals
U.S. Department of Agriculture, Cooperative Extension Service, University of Florida

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"What Do Whiteflies Look Like?." Sophisticated Edge. N.p., n.d. Web. . <http://www.sophisticatededge.com/what-do-whiteflies-look-like.html>.  

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