Photos from the WFIWC Archives:
Equipment and Methodology

DDT was tested against the spruce budworm on the Umatilla N.F., OR in 1948 after which millions of northwest forests were sprayed to control this defoliator. Buck marked aerial-spray plot corners with an aluminum paint bomb that was raised to the top of a tree after a projectile, having a line attached, was shot from this line gun. The gun was a .40-70 army rifle jokingly said to be left over from the Indian wars. Buck adapted the gun for this purpose and though of short stature, he was the only person who could stand the gun's kick repeatedly. (Furniss 2000, Fig. 12). WFIWC Archives.

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