298 



TTTE MONTHIjY BULLKTIN. 



Preparation. — Dissolve the acetate of lead (sugar of lead) in 4 gal- 

 lons of water in a wooden container; in another pail dissolve the 

 arsenate of soda in 2 gallons of water. These two solutions poured 

 together will make 100 gallons of spraying material. 



», 



iWt\ 





\^ 



Fig. 296. — Top picture shows the young apples .just right to spray for 

 the codling moth — the caly.v lobes are open. The lower picture shows 

 apples too far advanced to spray for this pest — the calyx lobes are closed. 

 'After Slingerland. ) 



ARSENATE OF LEAD AND BORDEAUX MIXTURE. 



It is often desirable to use a combination arsenical spray with a 

 fungicide for scab and codling moth. With Bordeaux mixture use 

 four pounds of arsenate of lead to one hundred gallons of the prepara- 

 tion when ready to apply to the trees. 



