James Johnson

1886 – 1952

• Behavior of the ordinary tobacco mosaic virus in the soil
• Concerning the mosaic disease of tobacco
• Fusarium-wilt of tobacco
• Host plants of Thielavia basicola
• Influence of soil environment on the rootrot of tobacco
• Relation of water-soaked tissues to infection by Bacterium angulatum and Bact. tabacum and other organisms
• The overwintering of the tobacco mosaic virus
• Tobacco in Wisconsin
• Tobacco wildfire in Wisconsin
• Wisconsin studies upon the relation of soil temperature to plant disease