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United States Department of Agriculture

Agricultural Research Service

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Image Number D849-1

The new low-volume spray technique developed by ARS entomologist Alan Knight delivers active materials to a tree canopy in a stream and reduces water use from 100 gallons per acre (for the old method, air-blasting) to just 1.25 gallons.


Photo by Stephen Ausmus.

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Last Modified: 8/12/2016
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