164 FRUIT FARMING 



up in the young foliage, when the arsenical spray 

 must be used. A convenient formula is as follows : 



Arsenate of Soda (pure) . . 3! ozs. 

 Acetate of Lead . . . . 7 ,, 



Water . . . . . . . . 10 gallons. 



Mix the Salts and dissolve in clear water, adding i-lb. 

 of treacle. Spray with a fine spray, and stop as soon 

 the leaves drip. The preparation known as Swift's 

 Paste is convenient, but our experiments lead us so 

 far to prefer the home-made article. The paste 

 requires merely mixing with water. 



The extremely dangerous nature of this wash must 

 be constantly impressed upon the workmen. No man 

 with a small wound on his hands or elsewhere should 

 be allowed to spray with it, and a wash with strong 

 soap is necessary before the workman takes food, and 

 its use should as far as possible be avoided, as an 

 overdose continued many years may quite possibly 

 kill the trees outright. All live stock and chicken 

 must be excluded for two months from feeding beneath 

 the arsenate sprayed trees, as many cases of death of 

 sheep, etc., are reported from the dropping of the 

 spray in grass orchards. 



In view of these remarks, it is hardly necessary to 

 reiterate the need for careful and constant attention to 

 grease banding as being a safer and most efficient way 

 of dealing with these pests. 



Another good plan is to tie old sacking or straw 

 round the tree, about two feet from the soil, in April. 

 Many chrysalids will be found therein later, and the 

 bands should be collected in October and burnt before 

 the greasing is done. 



