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Image Number D753-1

Jerry Hogsette (left), entomologist, and Dave Carlson, retired chemist, discuss the placement of air curtains at a doorway to prevent entry of insects into the room just inside. Depending on their location, the air curtains can prevent insects from entering the building or prevent them from leaving.


Photo by Peggy Greb.

640 pixels wide: (d753-1.jpg)

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