WHEAT. 



131 



doubtless, favorable to the growth and distribution of 

 the red spores, thus augmenting the trouble where 

 it already exists. There is no such thing as a rust 

 proof variety of wheat. Although in a given season 



Loose Smut of Wheat. 



Smut of Oats. 



some varieties rust more than others it cannot be 

 said that the same will be true of the same varieties 

 another year. 



The wheat plant is infected by the rust after the 



