ENEiVIES OF THE CROP. 69 



had once made its appearance. Changing the location of 

 the patch to a new plot is probably the safest plan of 

 fighting the rust. By practicing the " new onion culture," 

 however, we have it in our power to prevent this disease 

 altogether, or at least a serious attack by it. The earlier 

 varieties, White Victoria, Yellow Dutch, and other 

 ordinary standard sorts reach their full size and maturity 

 long before the advent of the rust, and even the later 

 foreign onions usually are too far advanced to be much 

 harmed by it. 



The smut, according to Prof. Bailey, attacks the first 

 leaf or leaves of seedling onions, producing dark, irreg- 

 ular spots, and killing or weakening the plants. Drill a 

 mixture of sulphur and lime, equal parts, into the ground 

 with the seed ; about an ounce of the mixture to 50 feet 

 of drill, as a preventive. 



