-I^!lfe*<;:> ; 



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sprayed and tmsprayed trees.) In 

 order to be most effective, two spray- 

 ings each year should be given, 

 especially during the first season. If 

 the work is well done the trees may 

 not need another application for a 

 year or two. 



The first spraying should be made 

 while the leaves are unfolding and 

 expanding, to kill as many of the 

 adult beetles as possible before they 

 commit injury or lay their eggs. The 

 second spraying should be made about 

 the second week in June in this locality, 

 to kill the young grubs as soon as 

 they begin to feed. Since they feed 

 mainly on the lower surfaces of the 

 leaves the poison mixture should be 

 applied as much as possible to the undersides of the leaves. 





FIG. 8. Hand-spray^ng outfit. 



SPRAYING APPARATUS 



Low and medium-sized trees can be sprayed very well with certain 

 hand-spraying outfits, like the one in Fig. 8. A high step-ladder with 

 an extension rod to which the nozzle may be attached will facilitate 

 the work greatly. A nozzle capable of throwing a fine or coarse spray 

 will probably be best. 



For large trees a power spraying outfit will be necessary. There 

 are several makes of gasoline power sprayers on the market that can 

 be bought for $250.00 to $300.00 (Fig. 9). 



COST OF SPRAYING 



Available data on this subject 

 show that it costs twenty-five to 

 sixty cents for a single applica- 

 tion to a large tree if the work 

 is done privately. If the work is 

 performed on a large scale by a 

 contractor it can be done more 

 cheaply. If one can contract to 

 have his trees sprayed twice in 

 FIG. 9. Power-spraying out-fit. ne season for fifty cents a tree, 



