Oct, 27, 1923 
A Bacterial Stripe Disease of Proso Millet 
159 
killed by the disease. In many plants the youngest leaves and growing 
point of the stem were brown and water-soaked. Many plants showed 
infection at the crown, being discolored and readily pulling away from 
the roots. 
It seems probable that in both the 1921 and 1922 plots the initial 
infections came from the seed and in 1922 the rainy weather was responsi¬ 
ble for the rapid spread of the disease. Methods of seed disinfection 
have not been worked out. 
SUMMARY 
Proso or broom com millet showing brown, water-soaked streaks on 
the leaves, sheaths, and culms has been collected at Brookings, S. Dak., 
and Madison, Wis. These lesions are one to several millimeters wide and 
from one-fourth to several inches long and show numerous thin white 
scales of exudate. 
A white polar flagellate organism has been isolated from these lesions 
which readily reproduces the disease when sprayed onto healthy plants. 
This organism differs culturally and morphologically from organisms 
attacking related plants and the name Bacterium panici is given. 
The disease is probably transmitted by seed. No methods of control 
have been worked out. 
LITERATURE CITED 
(1) Burrill, T. J. 
1887. a disease of broom-corn and sorghum. In Proc. 8th Ann. Meeting 
Soc. Prom. Agr. Sci., p. 30-36. 
1887. “DISEASE germs. ” ANOTHER ILLUSTRATION OF THE FACT THAT BACTERIA 
cause disease. In The Microscope, v. 7, p. 321-331, illus. 
(3) Crozier, A. A. 
1894. millet. Mich. Agr. Exp. Sta. Bui. 117, 64 p., illus. 
(4) Martin, John H. 
1920. proso, or hog millet. U. S. Dept. Agr. Farmers’ Bui. 1162, 15 p., 
4 fig- 
(5) Smith, Erwin F. 
1905. BACTERIA IN RELATION TO PLANT DISEASES. V. I. METHODS OF WORK 
AND GENERAL LITERATURE OF BACTERIOLOGY EXCLUSIVE OF PLANT 
diseases, xii, 285 p., 146 fig., 31 pi. Washington, D. C. Bibliography, 
^ p. 203-265. 
I91I. BACTERIA IN RELATION TO PLANT DISEASES. V. 2. HISTORY, GENERAL 
CONSIDERATIONS, VASCULAR DISEASES, viii, 368 p., 148 fig., 20 pi. 
Washington, D. C. Literature, p, 353. 
(7)- an d Hedges, Florence. 
1905. BURRILL’S BACTERIAL DISEASE OF BROOM CORN, 
p. 502-503. 
In Science, n. s., v. 21, 
