USDA Forest Service:
1913. Example of tree surgery on valuable cultivated chestnut trees affected by the Chestnut Bark Disease. Westchester, Pennsylvania.
USDA Forest Service:
1933. Civilian Conservation Corps (CCC). Spraying Ribes (wild currant) with atlascide for blister rust control. Boy is from Camp F42. St. Joe National Forest, Idaho.
USDA Forest Service:
1933. Civilian Conservation Corps (CCC). Spraying Ribes (wild currant) with atlascide for blister rust control. Enrollee is from Camp F-42. St. Joe National Forest, Idaho.
USDA Forest Service:
1933. Civilian Conservation Corps (CCC) removing Ribes. Camp F-44. Blister rust control. Merry Creek, Idaho.
USDA Forest Service:
1935. CCC work. Boys uprooting large gooseberry bush from ground. In background hanging up bushes under limbs of trees, to protect trees from blister rust. Worlds End Park, Pennsylvania State Forest, Pennsylvania.
USDA Forest Service:
1937. Twig blight eradication. Civilian Conservation Corps (CCC). Prescott National Forest, Arizona.
USDA Forest Service:
1937. Twig blight eradication. Civilian Conservation Corps (CCC/ERA). Prescott National Forest, Arizona.
USDA Forest Service:
1940. A dilute solution of sulphuric acid is spread evenly over the seed beds after seeding and rolling in order to sterilize the soil to prevent damping-off disease from infecting the new seedlings. Chippewa National Forest, Michigan.
USDA Forest Service:
1945. Worker from Scales Blister Rust Control Camp digging out Ribes plant. Plumas National Forest, California.
USDA Forest Service:
1951. Blister rust control (BRC) crewman spraying Ribes plants with 2,4,5-T on Upper Sands Creek. Deception Creek Experimental Forest, Idaho.
USDA Forest Service:
c.1952. Locating disease control areas on a map. Washington.
USDA Forest Service:
1952. A blister rust canker was excised from this sugar pine one year ago. All infection seems to have been removed, the tree is thrifty and the wound is healing nicely. South Umpqua Experimental Forest, Umpqua National Forest, Oregon.
USDA Forest Service:
1952. Blister Rust Control (BRC) disease survey tag. Rogue River National Forest, Oregon.
USDA Forest Service:
1952. Drawing and measuring sulphuric acid for disinfecting seedbeds. Chittenden Nursery. Lower Michigan National Forest, Michigan.
USDA Forest Service:
1952. Disinfecting seedbeds with sulphuric acid after sowing to control damping off. Chittenden Nursery. Lower Michigan National Forest, Michigan.
USDA Forest Service:
1955. Truck mounted power sprayer for supplying four to six crewmen with 2,4,5T solution to destroy wild currant and gooseberry, host plants for blister rust. Coeur D'Alene National Forest, Idaho.
USDA Forest Service:
1958. A dwarf mistletoe infected stand of young ponderosa pine that has been thinned and pruned under the (Agricultural Conservation Program (ACP). Near Cheney, Washington.
USDA Forest Service:
1959. Basal stem application of antibiotics for white pine blister rust control. Idaho.
USDA Forest Service:
1960. Hand spraying equipment adapted for blister rust control; Smith Model 25 G.F. two gallon, and Parco Model 1803S, 4.5 gallon, both with modified hoses, clamps, shut-off valves, wands, and nozzle assemblies. Franklin County, New York.
USDA Forest Service:
1960. Standard production model 25 G.F. two gallon Smith sprayer complete with tank, hose, wand, control valve, and nozzle assembly. Unit used in Region 7, Area II Blister Rust Control project for the eradication of Ribes. Greenfield, Massachusetts.
USDA Forest Service:
1960. Standard production model 25 G.F. two gallon Smith sprayer complete with tank, hose, wand, control valve, and nozzle assembly. Unit used in Region 7, Area II Blister Rust Control project for the eradication of Ribes. Greenfield, Massachusetts.
USDA Forest Service:
1960. Using a KIEKENS Whirlwind Mist Blower for spraying Ribes (glandulosum) in the Tupper Lake area just south of Paul Smith's. Note the heavy concentration of skunk currants on the stump of the overturned tree. Franklin County, New York.
USDA Forest Service:
1960. A crewman applying the antibiotic fungicide cycloheximide to the trunk of a young western white pine in an attempt to arrest damage caused by white pine blister rust. Coeur D'Alene National Forest, Idaho.
USDA Forest Service:
1960. Spraying white pine with Actidione to kill blister rust infection and immunize tree from disease. Superior National Forest, Minnesota.
USDA Forest Service:
1960. Spraying white pine with Actidione to kill blister rust infection and immunize tree from disease. Superior National Forest, Minnesota.
USDA Forest Service:
1960. Blister rust canker treated with Actidione. Control spray test at Oregon State University, Corvallis, Oregon.
USDA Forest Service:
1960. Treating blister rust with Actidione. Control spray test at Oregon State University, Corvallis, Oregon.
USDA Forest Service:
1960. Backpack sprayer used to treat blister rust with Actidione. Control spray test at Oregon State University, Corvallis, Oregon.
USDA Forest Service:
1960. Backpack sprayer used to treat blister rust with Actidione. Control spray test at Oregon State University, Corvallis, Oregon.
USDA Forest Service:
1961. Timekeeper and recorder on mistletoe economics of control study. Dwarf mistletoe sanitation. Deschutes National Forest, Oregon.
