.1905.] 



"White Rot" of Vines. 



495 



one-quarter to one-third of the crop may be destroyed within 

 the space of a few hours. 



The best remedy is to remove and burn all diseased bunches 

 of fruit, and spray every part thoroughly once every five days 

 with a rose- red solution of permanganate of potash. If the 

 disease is of recent origin and confined to the bunches of fruit, 

 the above treatment will suffice. 



"White Rot " of Vines. 



If, however, the disease has spread to the branches, its presence 

 will be indicated by the slightly depressed pale-coloured patches 

 on the bark already mentioned. All such diseased branches 

 should be cut out, as spraying will not check the disease on 

 permanent parts of the vine, where the mycelium of the fungus 

 spreads rapidly in the tissues. 



Where the disease has existed, every part of the vines, and 



