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USFS Logo Research Data Archive
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Caption reads: "Typical cup made at ground line on a root, for treating tree with cupric sulphamate. Crystals were placed in the cup."
more info/bigger image
Collection: Southern Research Station Historical Documents and Images
Keywords: experimental forest
hardwood
Location: Crossett Experimental Forest; Ashley County; Arkansas
Description: Caption reads: "Typical cup made at ground line on a root, for treating tree with cupric sulphamate. Crystals were placed in the cup."
Date: 8/19/1951

Caption reads: "Sections showing pruned branch stubs, 18 years after thinning." Photo taken in 1951, probably by Wilbur F. Mattoon, likely in the Urania, Louisiana area.
more info/bigger image
Collection: Southern Research Station Historical Documents and Images
Keywords: branch
pruning
Organisms: pine
Location: Urania, Louisiana
Description: Caption reads: "Sections showing pruned branch stubs, 18 years after thinning." Photo taken in 1951, probably by Wilbur F. Mattoon, likely in the Urania, Louisiana area.
Date: 1951