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1955. Ford tri-motor spraying DDT. Western spruce budworm control project. Powder River control unit, Oregon.
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Published by:
Creazilla
Author:
R6, State & Private Forestry, Forest Health Protection
Source:
R6, State & Private Forestry, Forest Health Protection on Flickr.com
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forest
aircraft
airplane
insects
ford
oregon
insecticide
1955
defoliation
usda
usfs
forest service
ddt
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