. Chemical control of brush and trees in the lake states : a review of present knowledge. Shrubs Control; Brush Control; Herbicides. Ammate can be applied to cut surfaces either in a solution of 1 to 4 pounds per gallon of water or as crystals. For larger trees good results have been obtained by placing a tablespoonful of crystals in notches cut into the base of the tree and spaced about 6 inches apart around the circumference (70). Some workers have placed the notches closer together. On small stems that can easily be severed from the roots, a V-shaped cut is often made and about a tablespoon
. Chemical control of brush and trees in the lake states : a review of present knowledge. Shrubs Control; Brush Control; Herbicides. Ammate can be applied to cut surfaces either in a solution of 1 to 4 pounds per gallon of water or as crystals. For larger trees good results have been obtained by placing a tablespoonful of crystals in notches cut into the base of the tree and spaced about 6 inches apart around the circumference (70). Some workers have placed the notches closer together. On small stems that can easily be severed from the roots, a V-shaped cut is often made and about a tablespoon- ful of crystals placed on the stump. The deliquescent crystals rapidly absorb moisture from the wood and from the air and are dis- solved and absorbed by the tree (fig. 2). To reduce the volume of material that must be transported, experi- ments have been conducted using concentrations of 400 pounds of 2,4-D and 2,4,5-T (the concentration in which hormone-type herbi- cides are commonly sold) in frills. These treatments show promise of reducing costs, especially through use of the amines applied at the rate of 1 milliliter per inch of diameter (75). SEASON OF APPLICATION Season of application is important, for herbicides are translocated in the presence of carbohydrates. Therefore, best results are obtained in foliage spraying when the leaves are fully expanded and are synthesizing food beyond the needs of the leaves. At this time the food is being transported out of the leaf and the herbicide will move along with it (16). Presumably some will be transported to the roots. Furthermore, the ability of a plant to recover from kill- ing of foliage and stems depends upon the food reserves available to. ;.—Ammate Is are . in notches i large or in the f small. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work
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