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United States Department of Agriculture

Agricultural Research Service

Image Number D2783-8

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Image Number D2783-8

In a lab test, this lone star tick nymph (Amblyomma americanum) was exposed to a citrus rind chemical, placed upside down inside an untreated filter paper cylinder, and observed to see whether it could right itself.


Photo by Stephen Ausmus.

640 pixels wide: (d2783-8.jpg)

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Last Modified: 2/28/2013