PLATE 20. 











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Bacterial disease of broomcorn. (Hothouse, U. S. Department of Agriculture, spring of 1905.) 



Disease not complicated by aphides. The sijns consist of gradually elongating red or red-brown stripes on a green background. In later stages the stnpes coalesce 

 and the leaves shrivel. Under surface of diseased areas often covered by red crusU — the dried-down, bacterial ooze from intenor of leaves. The infections were 

 by way of the stomaU and these spots are about six weeb old. 



