VEGETABLE GAEDEN PESTS 55 



Its appearance is shown by the brown spots on the 

 leaves, which in a bad attack soon turn mildewy, then 

 black, the leaves curling up, emitting a strong, pungent 

 smell as they decay or die. 



Plant strong healthy tubers, as sets, of varieties which 

 have been proved to be the least susceptible to the 

 disease. Give plenty of air-space between the rows and 

 the tubers in the rows. 



The ' Burgundy Mixture ', if timely applied and the 

 season is not too showery, will keep the disease in check 



X'lOO- 



Fungus of Pea-Mildew (Erisiphe Martii). 



[Copyright S. & 8. 



and promote a long period of growth, thereby gaining 

 an increased yield of crop. 



Two and sometimes three syringings may be neces- 

 sary to really check the disease. 



The approximate cost of each dressing, inclusive of 

 labour and materials, is 10s. per acre. 



Do not allow diseased haulm and tubers to rot on 

 the ground, but see they are destroyed by burning. 



* Burgundy Mixture ' is made from sulphate of copper 

 1 ft>., and washing soda 1 J lb., to 10 gallons of water. 

 Dissolve the copper sulphate in a wooden vessel, in 

 1 gallon of water, and the washing soda in 9 gallons, in 



