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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K7637-7

Entomologist James Hagler views results of an ELISA test. Bluish-colored wells indicate the presence of whitefly remains in the stomach of predator insects.

Photo by Jack Dykinga.



640 pixels wide: (k7637-7.jpg)




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Last Modified: 5/23/2006
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