so 



NEW YORK STATE MUSEUM 

 Kendall orchard, checks (unsprayed), 1915 







NO. 



PERFECT 



SCAB 



LEAF 

 ROLLER 



OR 

 GREEN 

 FRUIT 

 WORM 



CODLING MOTH, WORMY 



TREE 



Total 



End 



Side 

 July 



Side . 

 August 



X 

 Y 



Drops 



Picked 



Total 



Per cent .... 



Drops 



Picked 



Total 



Per cent .... 



34 

 169 

 203 



99 

 349 



448 



2 



17 



19 



9.35 



3 



41 



44 

 9.82 



12 



115 



127 



62.56 



44 



24S 



292 



65.17 



12 



56 



68 



33.49 



21 



89 



IIO 



24-55 



34 



89 



123 



60. 59 

 95 



212 



307 

 68.52 



5 

 

 5 



12 



I 



13 



28 



81 



109 



53.69 



83 



181 



264 



58.92 



I 

 8 

 9 







24 

 24 



Grand total. . . . 

 Per cent 



651 



63 

 952 



419 

 62.82 



178 

 27.34 



430 

 67.58 



18 

 2.76 



373 



57.29 



33 

 5.06 



The check trees bore 203 and 448 apples, the percentage of worm.y 

 fruit being 60.59 and 68.52, respectively. The end-worm.y apples 

 are relatively very few and by far the greater portion of the injury 

 in this orchard, as on the unsprayed trees, was due to late-hatch- 

 ing larvae, practically all but 10 per cent of the affected fruit for the 

 two trees being affected in this way. 



Kendall 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 



5 598 

 2 847 

 I 683 

 4 219 

 14 347 

 6si 



2 107 

 37.63 



I 092 

 38.35 



589 

 34-99 



I 521 

 36.05 



5 309 



37. 



63 

 9-52 



2 042 

 36.4s 



343 

 12.04 



195 



11.52 



I 637 

 38.80 



4 217 

 29.39 



419 

 62.82 



I 680 

 30.01 



I 194 

 41-93 



697 



41.41 



I 208 

 28.63 



4 779 

 33.31 



178 

 27.34 



I 549 

 27.67 



901 

 31.64 



582 

 34-52 



I 015 

 24.05 



4 047 

 28.20 



430 

 67-58 



28 

 -50 



15 



.52 



5 

 .29 



.04 



50 



■ 34 



18 

 2.76 



I 419 

 25.34 



837 

 29.39 



564 

 33.51 



963 



22.82 



3 783 

 26.29 



373 

 57.29 





Per cent 



2 Total 



2.25 

 55 



Per cent 



3 Total 



1.93 

 6 



Per cent 



special, total 



Per cent 



Total, sprayed plots 

 Per cent 



Checks, total 



Per cent 



.35 



50 

 1. 18 



237 

 1.65 



33 

 5 06 



A study of the summary of the plots gives in brief compass an idea 

 of the results obtained. It will be noted first of all that the yields 

 of plots 1 , 2 and 3 decreased, each being about one-half sm.aller than 



