2?! 



TABLE 22. — Estimated Cro? Reduction from 

 Crown Rust op Oats 



TABLE 23. — Comparison of Variation in Crown-Rust Infection 

 OF Oats and Estimated Crop Reductions in 1922 and 1923 



TABLE 25. — Estimated Crop Reductions from Corn 

 Diseases 



• In 1917 smut alone was estimated, 

 root-rots were reported as doing damage. 



but ear-rots and 



