GARDEN PESTS 



2. Arsenate of Lead 



(known in the trade as Disparene). 

 Formula: 3 ounces of crystallized Arsenate of 

 Soda. 



7 ounces of crystallized Acetate of 



Lead. 

 10 gallons of water. 



Dissolve the crystals, each kind separately, 

 in a small amount of water — the lead will 

 dissolve more readily if the water is warmed 

 — unite them, and reduce by adding the 

 remainder of the water. A milky mixture 

 will result; straining is not necessary if the 

 poison is thoroughly dissolved and thor- 

 oughly stirred with the water. 



A prepared paste or dust of this combina- 

 tion may be purchased but it is better to 

 mix as needed. Keep always the propor- 

 tion of I ounce of poison to i gallon of water. 

 It may be used stronger without harming 

 the plants, but this is a safe general strength, 

 effective and not risky. 



Arsenate of Lead remains suspended in 

 water better than any other poison, is less 

 likely to burn foliage, and sticks to all that 

 the spray reaches. The filmy coating which 

 it deposits shows consequently just what 

 has been , sprayed. Of all the arsenicals 

 it is the safest for tender foliage; and it may 

 be combined with Bordeaux Mixture, using 

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