POTATO DISEASES. 209 



wrinkled warts or scabs over the tuber, and render it quite 

 unfit to eat. The same disease is said to attack beet and 

 mangolds, and the spores remain dormant in the soil for 

 several years. 



Remedies. — It is the bounden duty of every grower who 

 finds tubers covered with the black warts to send a speci- 

 men or two to the Secretary, Board of Agriculture, 4, 

 Whitehall Place, London, S.W., accompanied by his full 

 name and address. The Board will then deal with the 

 disposal of the' infected crop and advise as to treatment 

 of the soil. Failure to report the disease renders the 

 grower liable to a penalty of £10. See Chapter V., Part 

 VII. 



