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United States Department of Agriculture

Agricultural Research Service

Image Number D689-7

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Image Number D689-7

Caption for July 2012 Agricultural Research magazine article, "Oxygenated Phosphine Fumigation for Pest Control on Harvested Fruits and Vegetables." Close-up of a lettuce aphid. This pest (about 1-3 millimeters long) appeared in California’s Salinas Valley in 1998 and is now found in all lettuce-production areas of that state and Arizona.

Caption for February 2007 Agricultural Research magazine article, "Putting the Crunch on Lettuce's Worst Enemies." 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.


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Last Modified: 7/19/2012