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United States Department of Agriculture

Agricultural Research Service

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Image Number K9351-1

Agricultural engineer Danel Haile, research leader John Welch, and Panamanian technician Mario Vasquez collect screwworm flies from a vertical sticky trap to monitor sterile fly activity in the Panama Canal zone.

Photo by Peggy Greb.

640 pixels wide: (k9351-1.jpg)

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Last Modified: 6/27/2017
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