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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K9723-1

Left: Red flour beetle larvae exposed to concrete treated with the insect growth regulator hydroprene failed to grow to adulthood. Right: Healthy adults on untreated concrete.

Photo by Peggy Greb.



640 pixels wide: (k9723-1.jpg)




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Last Modified: 5/23/2006
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