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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K7983-3

In an isolated test plot seeded with engorged adult female ticks, parasitologist Dolores Hill sprays infective juvenile Steinernema nematodes as a biological control.

Photo by Keith Weller.



640 pixels wide: (k7983-3.jpg)




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Last Modified: 5/23/2006
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