FUNGI AFFECTING CLOVER 



The Clover Rust 



Uromyces trifolii 



Although this disease has been known in Europe as 

 a clover enemy for a long time, it has only recently been 

 noticed in this country. It is now widely distributed, 

 however, occurring from Connecticut, in the east, to 



FIG. 89. 



a, White clover leaf showing £eciclium stage; b, red clover leal showing urecio 



stages. 



Colorado, in the west. It is occasionally so abundant 

 as to injure seriously fields of red clover. Leaves affected 

 by the disease are more or less thickly covered with 

 well-defined, oblong, brown powdery spots, as shown in 

 Fig. 89. 



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