Shade Trees : Characteristics, Adaptation, Diseases And Care
The book Shade Trees : Characteristics, Adaptation, Diseases And Care was written by author George E George Edward Stone Here you can read free online of Shade Trees : Characteristics, Adaptation, Diseases And Care book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Shade Trees : Characteristics, Adaptation, Diseases And Care a good or bad book?
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Exp. Sta. Kept. 15, 1905. ' Mass. (Hatch) Agr. Exp. Sta. Bui. 25, 1894. SHADE TREES. 81 this trouble with Bordeaux mixture many years ago. This rust affects the lower foliage, usually when the dew is most abundant. Infection is sometimes so severe that it destroys the twigs and branches. However, the use of Bordeaux mixture as a spray for ornamental trees is objection- able on account of the discoloration of the foliage, and some prefer the fungus to the unsightly foliage. If possible, some les...s objectionable spraying material should be employed for ornamental trees and shrubs. Although Bordeaux mixture has proved after many years' trial to be the best all-round summer spray for leaf spots, of late the diluted lime and sulfur solution is being substituted for it with more or less good results. Lime and sulfur applied to dormant trees for the San Jos6 scale has proved invaluable as a means of controlUng leaf spots, and in some cases it can undoubtedly be used to advantage for certain fungi, such, for example, as the Gkeosporium infection of the oak and sycamore.
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