April, -13] 



HUNGERFORD: TWO-SPRAY CALENDAR 



167 



SPRAY RELATION TO CROP PRODUCTION 

 Chart No. 1: 81,457 Apples Counted 



Gano 



Jonathan 



Winesap 



M.B. Twig 



Jonathan, 2 trees. . . 

 M.B. Twig, 1 tree. 

 Winesap, 2 trees. . . 

 Grimes G., 2 trees. . 



58.30 

 39.65 

 64.55 

 14.60 



4,436 

 5,656 

 8.741 

 15,681 



2,063 

 2,841 

 1,433 

 5,880 



36.50 

 5.47 

 5.73 

 9.47 



2,363 I 63.50 



2,814 94.53 



7,287 94.27 



9.791 90.53 



B „ Ben Davis. 2 trees. . 

 o s Mo. Pippin, 2 trees. 

 5 ^ Gano, 2 trees 



2,331 

 2,270 

 3,690 



15.80 



5.02 



25.28 



5,296 

 11,737 

 6,366 



84.20 

 94.98 

 74.72 



more drops in the unsprayed block than in the sprayed. This was 

 true throughout the remainder of the season, for it is to be noted that 

 the numbers in the sprayed blocks represent the drops from two trees 

 while in the unsprayed block the fall is from single trees. In the 

 September drop the Jonathan of both spraj^ed and unsprayed ran 

 high. This w^as attributed, the country over, to the weather condi- 

 tions. In our country, however, the Jonathan seems to have the bad 

 habit of letting fall its partly ripened fruit. Spraying tends to check 

 this, for while the unsprayed tree dropped 1,612 apples, the sprayed 

 only dropped 554. In the case of the Black Twig 84.4 per cent of 

 the fruit that started out to grow fell by the way, while only 5.4 per 

 cent of the sprayed fruit dropped 



EFFICIENCY OF SPR.IYING IN THE PRODUCTION OF SOUND FRUIT 

 ChabtNo. 2: 81,457 Apples CoTiNTED ^ 



Total T... . Total Total _ , , 



, . Thinning , , , r Per cent of 



number of , number of number of , 



drop — , , sound 



apples ,, unsound sound 



set 



Mav 



apples 



apples 



* Cause of drop undetermined and therefore not figured in the percentage of sound apples. 



