220 DISEASES. 



blue vitriol' dissolved in hot water, and then 

 mixed with four gallons of cold soft water ; the 

 leaves sprinkled with it night and morning. 



In some soils, a species of red fungus attaches 

 itself to the bark in bright orange-red blotches. 

 This species of fungus is not very common ; the 

 cure is to wash the stems and shoots with Grishurst 

 compound ; if in winter and early spring, 6 oz. to 

 the gallon of soft water ; if in summer, 3 oz. to 

 the gallon will be sufficient. If the blotch does 

 not heal, the red bark should be pared off with a 

 sharp knife, applying to the wound the Forsythic 

 mortar — cow-dung, lime, sand, and wood-ashes ; 

 equal quantities, made into a thick paste and 

 spread on the wound with a spatula. 



There is yet another red or rather orange- 

 coloured fungus, peculiar to dry soils, which often 

 makes its appearance in August on the under 

 surface of the leaves of roses, more particularly 

 those of the Moss and Provence Eoses. I have 

 seen thousands of young and old plants of these 

 two old favourite sorts with the under surface of 

 every leaf covered with a thick coat of impalpable 

 bright orange- coloured dust. No cure has yet 

 been found for this disease ; all the fungus reme- 

 dies have failed. There is a preventive — the roses 

 should be lifted and replanted every autumn, 

 giving them at the same time plenty of manure 

 and stirring the soil three feet deep ; rotation in 

 cropping should also be attended to, so as to give 



