INSECTS, DISEASES, AND SPRAYING 69 



To prepare: place the copper sulphate in 

 a bag, suspended in a barrel or other wooden 

 receptacle holding four gallons of water. 

 In another barrel slake or mix six pounds 

 of lime with six gallons of water. When 

 time to spray, take the solution of copper 

 sulphate and pour into the spray barrel, add 

 forty gallons of clean water, then strain in 

 the six gallons of the lime water (milk of lime 

 as it is sometimes called). The extra lime 

 will counteract possible injury from excess 

 strength of the copper sulphate. This is a 

 fungicide. 



The addition to this mixture of three 

 pounds of arsenate of lead, for leaf-eating 

 insects, makes a good all-purpose spray 

 mixture. 



In the cases where the fruit is set and 

 there is danger from poisoning if any of the 

 arsenic forms are used, hellebore or pyre- 

 thrum powders, both being non-poisonous, 

 may be employed. Apply these powders 

 early in the morning with the dew still on 

 the leaves, either using a bellows sprayer or 

 better still the powder hammer, which is 

 nothing more than a large, cheaply con- 

 structed shaker attached to a short handle. 



