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United States Department of Agriculture

Agricultural Research Service


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  Image Number D3051-2

An adult hoverfly on an alyssum flowerhead. Hoverflies are a natural enemy of aphids that can infest lettuce, and the flies are attracted to fields by alyssum interplanted with the lettuce.

 

Photo by Stephen Ausmus.


640 pixels wide: (d3051-2.jpg)




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Last Modified: 8/13/2016
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