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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number D823-1

At an APHIS quarantine facility near Weslaco, Texas, ARS technician Ann Vacek measures growth of Arundo donax plants exposed to the Tetramesa romana wasp (left enclosure) and plants not exposed (right enclosure).


Photo by John Goolsby.

640 pixels wide: (d823-1.jpg)

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Last Modified: 6/28/2007
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