xxi 



MINISTEY OF AGRICULTURE AND FISHERIES. 



(Miscellaneous Publication Xo. 31.) 



WART DISEASE OF POTATOES; ORDER, 1919. 



List of Growers of Certified Immune Varieties of 

 Potatoes in England and Wales, Season 1920. 



The object of this List is to indicate to purchasers of seed 

 potatoes the sources of supply in England and Wales of potatoes of 

 varieties certified to be immune from Wart Disease. The crops 

 of all the growers given in the List were examined in the field in 

 1920 by Inspectors of the Ministry of Agriculture and Fisheries, 

 and certified as true to type and reasonably free from " Eogues." 



Price 2s. net, Post Free. JUST PUBLISHED, 



(Miscellaneous Publication No. 28.) 



ORMSKIRK POTATO TRIALS. 



Annual Report for 1919 of the Trials of Varieties 

 of Potatoes Immune from Wart Disease. 



This Pieport includes also a descriptive list of certain immune 

 varieties, a complete list of named varieties tested at Ormskirk 

 from 1915 — 1919, and miscellaneous notes on the purity of stocks, 

 degrees of susceptibility, the question of types, soil fungicides, 

 steam sterilisation, and cooking qualities. 



Pkice Is. Qd. net, Post Free. 



The above publications may be obtained from the OJices of the 

 Ministry . 3, St. James s Square, London, S.W.I. 



