The Take- all Disease of Cereals and Grasses 41 



be practicable here. Nevertheless, from the point of view of take-all 

 control, the practice of adding lime to the soil before planting wheat 

 should be discontinued. 



IMMUNIZATION 



From the evidence presented under Varietal Susceptibility, it is probable 

 that such varieties of wheat as Forward and Dawson will be found resist- 

 ant to the disease under field conditions and may be recommended for 

 planting in areas where take-all is most severe. 



