. The care of trees in lawn, street and park. With a list of trees and shrubs for decorative use. Trees; Trees. CHAPTER V CONTROL OF PHYSIOLOGICAL DISEASES AND TREATMENT OF MECHANICAL INJURIES — GENERAL CARE OF TREES UST as in all other cases, the ills to which trees are exposed are best met with the prescrip- tion of the old adage: "An ounce of prevention is worth a j)Ound of ; Just as the physician insists upon sanitary conditions, as a means of preventing disease, so the tree doctor should insist upon securing the most favorable conditions of growth for his charges. These may
. The care of trees in lawn, street and park. With a list of trees and shrubs for decorative use. Trees; Trees. CHAPTER V CONTROL OF PHYSIOLOGICAL DISEASES AND TREATMENT OF MECHANICAL INJURIES — GENERAL CARE OF TREES UST as in all other cases, the ills to which trees are exposed are best met with the prescrip- tion of the old adage: "An ounce of prevention is worth a j)Ound of ; Just as the physician insists upon sanitary conditions, as a means of preventing disease, so the tree doctor should insist upon securing the most favorable conditions of growth for his charges. These may be achieved by looking after soil conditions, mainly with reference to air and water-sup- ply; by providing a satisfactory amount of light, and, above all, by timely and judicious surgery—pruning, by which the consumption of supplies from the root can be regulated sometimes more easily than the supply in the soil itself. These tw^o means, then, regulation of foliage development by pruning and soil impro\'ement, are compensating and should usually go hand in hand. Timely attention to these requirements will prevent many of the troubles to which trees are liable, and, when trouble has come, half the battle is won, if these conditions of favorable nutrition are estab- lished and the tree has been kept in vigor to fight otT the disease. We shall devote this chapter, therefore, entirely to the discussion of proper care in soil conditions and in pruning, 76. 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 Fernow, B. E. (Bernhard Eduard), 1851-1923. New York Holt
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