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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number D689-7

Lettuce aphid, Nasonovia ribisnigri. This pest (about 1-3 millimeters long) of lettuce appeared in California’s Salinas Valley in 1998 and is now found in all lettuce-production areas of that state and Arizona.

Photo by Stephen Ausmus.



640 pixels wide: (d689-7.jpg)




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Last Modified: 1/30/2007
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