16 



of time on the foliage, that is Bordeaux mixture, cannot 

 be used on Rose bushes in gardens, &c., as it imparts a 

 whitewashed appearance to the plants. Those solutions 

 that can be used without imparting an unsightly 

 appearance to the plants will be given in the proper 

 place. 



Certain periods of time between successive sprayings 

 will be indicated, such periods, however, as will be 

 readily understood, can only be suggestive. All spray 

 solutions are washed off foliage by rain, consequently if 

 you spray on a given day, and a sharp shower follows the 

 operation, you must necessarily spray again at once, 

 although it may be stated that spraying every fourth day 

 is sufficient. The statement only means that spraying 

 at intervals of four days will prove effective, on the 

 understanding that the solution is not removed from the 

 foliage by rain or heavy dew. 



In like manner the amount of material to be used 

 in the preparation of a spraying solution will be given. 

 This, again, can only be relative. Scorching of the 

 foliage invariably follows the use of too strong a 

 solution. This depends on the relative " hardness " of 

 the foliage. The same solution that acts properly on a 

 plant growing in the open will scorch the foliage of a 

 plant growing in a damp shady place. Commence 

 spraying with a solution diluted with more water than is 

 indicated in the formula given, and increase the strength 

 as experience dictates. 



I am afraid that the above reading may be con- 

 sidered somewhat dogmatic, but experience has proved 

 that it is necessary. 



