GEMRICH, E. G., II, and E. VANDE STREEK. 1980. Effectiveness of Bacillus uniflagellatus in controlling plant diseases. Plant Disease 64:382-384. Under varied laboratory conditions, dry spore powder of Bacillus uniflagellatus failed to control Meloidogyne incognita, Alternaria solani, Erysiphe cichoracearum, Fusarium solani, Pythium ultimum, Rhizoctonia solani, and Verticillium albo-atrum when the spores were incorporated in the soil in which plants were grown. The bacterial powder did not markedly improve foliar development of corn or wheat grown under stress. A readily produced, storable, easily applied microbial for controlling organisms that produce plant disease would have obvious commercial and biologic benefits. In recent years, bacteria and active substances from bacterial cultures have been used successfully to control several crop pathogens, most notably Fusarium, Rhizoctonia, and Pythium