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in place name: "United States - Oklahoma - Pontotoc County - Ada"  
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Land Clearance, Cultivation & Brush and Weed Control

Description: Photograph of a John Bean power sprayer equipped to make basal-bark applications on brush and trees. The person in the picture is Harry M. Elwell, Research Agronomist for Field Crop Research, US Department of Agriculture [USDA], located at the Red Plains Conservation Experiment Station, Guthrie, OK. OK-11-10.
Date: March 1, 1955
Creator: Gamble, M. D.
Item Type: Refine your search to only Photograph
Partner: Oklahoma Conservation Historical Society

Land Clearance, Cultivation & Brush and Weed Control

Description: Photograph of basal-bark application using 2¾ gallon of a low-volatile 2-4-5T ester (4 pounds acid per gallon of material used) in 100 gallons of diesel oil. The spray is applied so as to completely encircle and wet the lower 12 inches of each plant even to the point of run-off onto the soil. The equipment used was a John Bean-powered sprayer. The brush and trees were blackjack, post and white oak, hickory, elm, persimmon and dogwood. OK-11-7.
Date: March 1, 1955
Creator: Gamble, M. D.
Item Type: Refine your search to only Photograph
Partner: Oklahoma Conservation Historical Society

Land Clearance, Cultivation & Brush and Weed Control

Description: Photograph of basal-bark application using 2¾ gallon of a low-volatile 2-4-5T ester (4 pounds acid per gallon of material used) in 100 gallons of diesel oil. The spray is applied so as to completely encircle and wet the lower 12 inches of each plant even to the point of run-off onto the soil. The equipment used was a John Bean-powered sprayer. The brush and trees were blackjack, post and white oak, hickory, elm, persimmon and dogwood. OK-11-8.
Date: March 1, 1955
Creator: Gamble, M. D.
Item Type: Refine your search to only Photograph
Partner: Oklahoma Conservation Historical Society

Trees, Tree Farms, Woodlands, and Forests

Description: Photograph of basal-bark application using 2¾ gallon of a low-volatile 2-4-5T ester (consisting of 4 pounds acid per gallon of material used) in a solution of 100 gallons of diesel oil. The spray is being applied so as to completely encircle the lower 12 inches of each plant and wet them to the point of runoff onto the soil. The equipment used was a John Bean-powered sprayer. The brush and trees were blackjack, post, white oak, hickory, elm, persimmon and dogwood. OK-11-7.
Date: March 1, 1955
Creator: Gamble, M. D.
Item Type: Refine your search to only Photograph
Partner: Oklahoma Conservation Historical Society

Basel Bark Treatment

Description: Photograph of Basel-bark application, using 2 3/4 gallon of low volatile 2-4-5, T ester (4 lbs. acid per gallon material used) in 100 gallon of diesel oil. The spray being applied so as to completely encircle and wet the point of runoff onto the soil the lower 12 in. of each plant. Equipment used was a John Bean powered sprayer. The brush and trees were blackjack, post and white oak, hickory, elm, persimmon and dogwood.
Date: March 1, 1955
Creator: Gamble, M. D.
Item Type: Refine your search to only Photograph
Partner: Oklahoma Conservation Historical Society
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