Whitefly
Overview
 
The whiteflies, comprising only the family Aleyrodidae, are small hemiptera
Hemiptera
Hemiptera is an order of insects most often known as the true bugs , comprising around 50,000–80,000 species of cicadas, aphids, planthoppers, leafhoppers, shield bugs, and others...

ns. More than 1550 species have been described. Whiteflies typically feed on the underside of plant leaves.
The ability of the whitefly to carry and spread disease is the widest impact they have had on global food production. In the tropics and subtropics, whiteflies have become one of the most serious crop protection
Crop protection
Crop protection is the branch of horticulture concerned with protecting crops from pests, weeds, disease and theft.It encompasses:* Pesticide-based approaches such as herbicides, insecticides and fungicides...

 problems. Economic losses are estimated in the hundreds of millions of dollars.

While several species of whitefly cause crop losses through direct feeding, a species complex, or group of whiteflies in the genus Bemisia are important in the transmission of plant diseases.
 
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