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United States Department of Agriculture

Agricultural Research Service

Image Number D1586-5

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Image Number D1586-5

Using high-performance liquid chromatography, entomologists Michael Reding (left) and Christopher Ranger analyze geranium extracts with paralytic activity against Japanese beetles to identify the active phytochemicals.


Photo by Stephen Ausmus.

640 pixels wide: (d1586-5.jpg)

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Last Modified: 2/25/2010
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