Preserving Seed. 



As the potato disease remains in a dormant condition 

 in the tubers through winter, and assumes activity in 

 summer, the importance of selecting, so far as possible, 

 seed which is free from disease, is easily recognised. 

 Badly attacked tubers are easily detected, but where 

 there is a slight attack it is difficult to trace its 

 presence. All reasonable precaution should be taken 

 when selecting it, and an endeavour should be made 

 to choose it from stocks which have not shown signs 

 of disease when growing. Mr. Jensen recommended 

 that the seed should be subjected to a temperature of 

 from 100 deg. F. to 105 deg. F. for four or five hours, 

 as by that means the hybernating mycelium was killed. 

 The disinfection was to be carried out in an oven, so 

 that they would be under the influence of dry heat. 

 This recommendation was made several years ago, but 

 has not come into practice, and is not likely to. 



