. Diseases of cereal and forage crops in the United States in 1921. Grain Diseases and pests United States; Forage plants Diseases and pests United States. 2lG OATS - Smuts. Fig. 55- Percentage reduction in yield caused by smuts of oats. 4% in I.'ontana, according to Jennison. The highest percentages of smut found in individual fields are as follows: In V/ashington 40%, Indiana 35%, Kansas and Arkansas 30%; Vermont 20%, Maryland 20%.,, Connecticut, Kentucky, and South Dakota 15%. It is notev/orthy that collaborators volunteer the information that in some states where the smut is very prevalent
. Diseases of cereal and forage crops in the United States in 1921. Grain Diseases and pests United States; Forage plants Diseases and pests United States. 2lG OATS - Smuts. Fig. 55- Percentage reduction in yield caused by smuts of oats. 4% in I.'ontana, according to Jennison. The highest percentages of smut found in individual fields are as follows: In V/ashington 40%, Indiana 35%, Kansas and Arkansas 30%; Vermont 20%, Maryland 20%.,, Connecticut, Kentucky, and South Dakota 15%. It is notev/orthy that collaborators volunteer the information that in some states where the smut is very prevalent seed treatment is rarely ever practiced. For instance, both Valleau and Elliott comment on the fact that seed treatment is rather rate in their respective states. The percentage of anut in Kentucky was 8, while Elliott and Rosen state that it was 10% in Arkansas. Collaborators report that seed treatment is practiced commonly in New York, North Carolina, Ohio, Michigan, and Oregon. Barss says that seed treatment is so generally used in Oregon that smut is not commonly troublesome. Apparently soil conditions determine to a certain extent the amount of sm»ut which develops in a crop. The relation of temperature, soil moisture and oxygen to the germination of the spores of Ustilago avenae and U. levis are given by Edith Seymour Jones in a brief summary, pubii£;;hod m abstract form. (Abstract). Phytopath. 12:• 45. Jan. 1922, The results of experiments v/ith chlorophol, a new disinfectant, are summarized by Tisdale as follows (Cereal Courier I3: 280-284- Dec. 3'^-^' "Chlorophol, a nev/ disinfectant which vtr-a& tested on smutted seed of A. nuda for controlling both oat smuts, gave almost perfect control with very little or no seed injury.* Other work on seed treatment is reported by Lambert and Bailey (2), and by Howitt and Stone (l); and L. J. Stadler writes in the Cereal Courier as follows:. Please note that these images are extracted from scanned page images that may
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1920, bookyear1922
