. Pig. ^1. Distribution of barley in the United States. (Map prepared in the Office of Farm Management.) in Virginia was reduced 2%; and Taubenhaus estimated that the loss in Texas was about the same. The loss in Montana was also about 2%, according to Jennison. The disease did not cause more than 1% loss in any other state from which reports were received and in most of than tiie loss v/as only a trace, although the percentage of reduction in some individual fields was high. The loss in Arkansas was placed at 5% "but practically no barley is grown in that state, according to Elliott. In
. Pig. ^1. Distribution of barley in the United States. (Map prepared in the Office of Farm Management.) in Virginia was reduced 2%; and Taubenhaus estimated that the loss in Texas was about the same. The loss in Montana was also about 2%, according to Jennison. The disease did not cause more than 1% loss in any other state from which reports were received and in most of than tiie loss v/as only a trace, although the percentage of reduction in some individual fields was high. The loss in Arkansas was placed at 5% "but practically no barley is grown in that state, according to Elliott. In Kansas, according to Melchers there was as much as 50% of smut in some fields, v/hile in Missouri ^0% of the heads in some fields were affected, and in Indiana the highest percentage of smut in any individual field was I5. In Coahuila, Mexico, according to Christopher and Stalcman, smut was very general. The percentage of infected heads in various fields ranged from 5 to 20. For distribution and losses see the map, Pig. 5i2. The disease is controlled easily by ordinary seed treatment, including the modified hot v/ater treatment for loose The results of experiments to determine varietal resistance apparently were disappointing. The following comment from the Cereal Courier summarizes the work done at Arlington Farm, Virginia in I92I: The experiments for testing the behavior of varieties of barley tov/ard infection by the covered smut fungus were as usual unsuccessful. So far, practically all attempts at getting infection by smutting the seed at the time of sov;ing have m^et vdth little or no success. varieties shon a slight increase in the percentage of infection when the seed is anutted, v/hile others do not. Seed of most varieties
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