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ARS Home Office of Communications Images Photos Feb07





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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)   Please visit our Image Gallery


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