. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. ASCOMYCETES 225 Following a moist early summer I have found the perithecia abun- dant on old leaves in the shade during a very dry period in late summer (Fig. 90). Control. Thorough dusting with flowers of sulfur every ten days is often sufficient. Ammoniacal copper carbonate is also Fig. 90. Rose Mildew, Perithecia Present Sulfuric acid 1 to 1000 has recently been recommended. No ex- periments have been reported respecting the use of the " self- cooked " lime
. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. ASCOMYCETES 225 Following a moist early summer I have found the perithecia abun- dant on old leaves in the shade during a very dry period in late summer (Fig. 90). Control. Thorough dusting with flowers of sulfur every ten days is often sufficient. Ammoniacal copper carbonate is also Fig. 90. Rose Mildew, Perithecia Present Sulfuric acid 1 to 1000 has recently been recommended. No ex- periments have been reported respecting the use of the " self- cooked " lime-sulfur for the rose mildew, but there is reason to believe that it may be far more effective than sulfur in this 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 Duggar, Benjamin M. (Benjamin Minge), 1872-1956. Boston ; New York : Ginn
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