2IO CROP PRODUCTION 



Crop Rotation 



Learn what crop rotations are practiced by local 

 wheat growers. 



Which rotations seem to bring the largest yields per 

 acre? 



Fungous Diseases 



Which wheat rusts can you find in your locality? If 

 both are present which is more destructive? Read 

 pages 235-237, Farm Friends and Farm Foes. 



Are some varieties of wheat more subject to rust than 

 others in your region? What varieties are most nearly 

 rust proof? 



Can you find both kinds of Wheat Smut in your 

 locality? Which is more destructive? 



Do any farmers in your region treat their seed to 

 prevent Smut? If so what is the result? 



If the loss from wheat diseases in your township is 

 ten per cent of the crop, what is the money loss? 



Hessian Fly 



Inquire of farmers who grow wheat whether the crop 

 has been injured by Hessian flies in recent years. 



If any field is now infested bring specimens of injured 

 stalks to school so that each pupil can see the insects. 



If examples of the flax-seed stage are found, keep alive 

 in a covered jelly glass or similar receptacle to rear the 

 adult flies. 



Learn what preventive measures are in use against the 

 Hessian fly. Read pages 123-124, Farm Friends and 

 Farm Foes. 



