December, 1909.] THE CODLING MOTH. ' 93 



CAN YOU AFFORD NOT TO SPRAY ? 



Profit from spraying an orchard of 100 trees : 

 Average gross profit per tree, as a result of 



spraying for codling moth only .$12o.(>0 



Two sprayings at $0.09 each, per tree $18.00 



20 per cent, on $35 invested in best outfit. ... 7.00 



25.00 



Net profit $100.00 



Less cost of outfit 35.00 



Net profit for first year, over 100 per cent, 

 on investment. $65.00 



Were Bordeaux also used the net profit would have been $5 

 less. 



Can 3^ou make money more easilyl 



IV. CO-OPERATIVE EXPERIMENTS IN 1909. 



At the request of citizens of Henniker, Derry and Chester, 

 cooperative demonstration experiments in spraying were made 

 at several points in each town the past season. The Station 

 furnished the apparatus and materials and a member of its staff 

 did the spraying. From ten to twenty trees were sprayed on 

 each place by the Station's representative, and the owner of the 

 orchard then used the pump for spraying the rest of his trees. 

 One spraying was given just after the blossoms dropped with 

 two pounds of arsenate of lead to a barrel of water. The owners 

 of the orchards were requested to note the relative amount of 

 dropped and picked fruit, and wormy and non-wormy fruit, on 

 the sprayed trees as compared with those not sprayed, and report 

 to us the commercial value of the apples secured from sprayed 

 and unsprayed trees. These reports are as follows: — 



At Henniker, J. W. Emery: 



Four trees sprayed — 



Picked 77 bushels (92 per cent.) 



Dropped 6\(, bushels ( 8 per cent.) 

 One tree not sprayed — 



Picked 8 bu.shels (57 per cent.) 



Dropped 6 bu.shels (43 per cent.) 



(or 35 per cent, of the dropped fruit was held on the sprayed 



trees). 



