. Diseases of economic plants . Plant diseases. 10 DISEASES OF ECONOMIC PLANTS of Denmark improved upon these methods by develop- ing his hot-water treatment, which has since proved of - - great value, not so much for its primary use, in which it has been superseded by formalin, but ow- ing to its appUcability to those loose smuts which cannot be suc- cessfully treated by surface disin- fection. Similar seed treatments I have been extended to the potato l)y BoUey, and to cabbage by i Harding.^ The production, by breeding, of new and disease-resistant varieties is one of the latest and most pro
. Diseases of economic plants . Plant diseases. 10 DISEASES OF ECONOMIC PLANTS of Denmark improved upon these methods by develop- ing his hot-water treatment, which has since proved of - - great value, not so much for its primary use, in which it has been superseded by formalin, but ow- ing to its appUcability to those loose smuts which cannot be suc- cessfully treated by surface disin- fection. Similar seed treatments I have been extended to the potato l)y BoUey, and to cabbage by i Harding.^ The production, by breeding, of new and disease-resistant varieties is one of the latest and most prom- ising methods of combating plant diseases. Grapes resistant to Phyl- loxera were produced by Mil- lardet; others resistant to coulure by Pierce; cotton, cowpeas, and watermelons resistant to mlt by Orton. No small part in the progress that has been made in the prevention of plant disease is due to the improvement of appliances, dusters, pumps, nozzles, etc., for distributing the disinfectants upon the plants. This progress is well illustrated by comparing the broom of Millardet with the knapsack, barrel, or power sprayer of Fig. 2.—An improved brush for distributing Bordeaux mixture. After Lodeman. ' Harding, H. A. pp. 62-78. and others, N. Y. (Geneva) Agr. Exp. Sta. Rpt. 23,. 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 Stevens, Frank Lincoln, 1871-1934; Hall, John Galentine, 1870-. New York : Macmillan
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Keywords: ., bookauthorstevensf, bookcentury1900, bookdecade1910, bookyear1910
