3^ 



NEW YORK STATE MUSEUM 



Webster orchard, checks (unsprayed), 1915 







NO. 



PERFECT 



SCAB 



LEAF 

 ROLLER 



OR 

 GREEN 

 FRUIT 

 WORM 



CODLING MOTH, WORMY j 



TREE 



Total 



End 



Side 

 July 



1 



Siie 



August 



1 



1 



X 



Y 



Drops 



Picked 



Total 



Per cent .... 



Drops 



Picked 



Total- 



Per cent 



246 



1 892 



2 138 



352 



2 929 



3 281 



119 



499 



618 



28.90 



78 

 440 

 S18 



IS -78 



91 

 I 295 



1 386 

 64.82 



187 



2 479 

 2 666 

 81.25 



24 

 133 



IS7 



7-34 



50 



196 



246 



7-49 



45 



81 



126 



5 -89 



92 



127 



219 



6.67 



4 



I 

 5 



II 



I 

 12 



40 



78 



118 



S-Si 



77 



122 



199 



6.06 



I 

 . 3 



4 



I 



7 



' 8 



Grand total. . . . 

 Per cent 



5 419 



I 136 

 20.96 



4 052 

 74-77 



403 

 7-43 



345 

 6.36 



17 

 ■ 31 



317 

 S.84 



, 12 



: .22 



The two check trees bore 2138 and 3281 apples, the percentage; of 

 wormy fruit being 5.89 and 6.67 respectively. Most of the affected 

 apples bore the side injury of late-hatching worms of the first brood, 

 though there is a perceptibly larger percentage of end-wormy fniit. 

 The extremely low percentage, for check trees, of wormy apples is 

 surprising and can be accounted for only by the very thorough and 

 systematic spraying of earlier years. This view is further supported 

 by the fact that examinations under nearby trees just across the road 

 from the experimental orchard showed that 7 5 per cent of the apples 

 lying on the ground were badly injured by the codling moth. This 

 plainly indicates that the insect, if left to itself, would have been 

 extremely abundant, and at least suggests that there may be great 

 value in annual treatments whether the trees be in fruit or not. 



Webster orchard, summary of plots, 1915 





NO. 



PERFECT 



SCAB 



LEAF 

 ROLLER 



OR 

 GREEN 

 FRUIT 

 WORM 



CODLING MOTH, WORMY 



PLOTS 



Total 



End 



Side 

 July 



Side 

 August 



I Total 



23 503 

 15 604 

 22 039 



61 146 

 5 419 



II 291 



48.04 



10 529 



67.47 



16 701 



75.77 



38 521 

 62.99 



I 136 

 20.96 



10 835 



46. ID 



4 082 

 26.15 



3 671 

 16.65 



18 588 

 30.39 



4 052 



74-77 



I 337 



5-68 



I 087 

 6.97 



I 038 



4.70 



3 462 

 5.66 



403 



7.43 



1 224 



5.20 



Sn 



3.27 



863 

 3.91 



2 598 



4.24 



345 

 6.36 



28 

 .11 



13 

 .08 



ID 



.04 



SI 



.08 



17 

 -31 



1 188 

 5 05 



, 496 

 3-17 



853 

 3.87 



2 537 

 4-14 



317 

 5-84 



29 



. 12 



8 



Per cent 



2 Total 



Per cent 



3 Total 



■ 05 

 6 



Per cent 



Total sprayed 

 Plots 



.02 



43 

 -07 



12 



Per cent 



Checks, total 









