ON MILDEW* 345 



When copings of walls are so constructed 

 that the drip from them falls upon the trees, 

 it will likewise frequently cause the mildew. 

 But if the directions given in this work in 

 reference to a proper soil for each kind of 

 fruit tree, making of the borders, and in 

 watering the tops and roots of the trees, be 

 carefully attended to, they will very rarely 

 be attacked with either mildew, curled, or 

 blotched leaf. 



The following practice is what I have 

 adopted with great success as a preventive 

 of mildew, &c. Just before the bloom ex- 

 pands, the tree is sprinkled with water* 

 after which it is dusted all over (parti- 

 cularly the young shoots) with common 

 sulphur mixed with a little Scotch snuff or 

 tobacco dust. The beneficial effects of this 

 practice I have satisfactorily realised for 

 many years. However when a tree is af- 

 fected by mildew, let it be immediately 

 sprinkled with soap suds and then be dusted 

 over with sulphur and snuff as before de- 

 scribed. It is the practice of many persons 

 to wash those trees that are affected with 

 mildew, frequently with soap suds and urine 

 and other mixtures, which repeated washings 

 tend to promote, instead of destroying it. 



It is also the practice of others to renew 

 the soil of the border, but although this is 

 advantageous in some respects, it w T ill not 

 bean entire preventive of mildew, because 



