20 



Table IX. 



Comparison of Paris Green and Arsenic, two trees each, sprayed 



three times, 1886. 



Fruit. 



When 

 Examined. 



No. OP Apples 

 Examined. 



Injuries by Codling Moth. 



Paris Green. 



Arsenic. 



Paris 

 Green. 



Ar- 

 senic. 



No. 



Eatio. 



Cor- 

 rected. 



No. 



Ratio, 



Cor- 

 rected. 





June 8 



92 

 144 

 1,072 



130 



33 

 558 

 234 

 345 



56 

 594 

 300 



0 

 0 

 6 







1 

 0 

 2 

 45 

 111 

 23 

 242 

 134 



.01 



.01 





June 25 









July 20 



August 18 



.01 



.01 



.66 

 .19 

 .32 

 .41 

 .41 

 .45 



.66 

 .20 

 .20 

 .40 

 .30 

 .33 



i I 

 ( ( 



Picked 



August 31 , 

 September 8. .. 

 September 20.. 

 October 4 



337 

 230 

 600 

 400 



120 

 60 

 154 

 120 



.36 

 .26 

 .26 

 .30 



.24 

 .20 

 .15 

 .18 



3,074 

 200 



2, 550 

 214 



484 

 14 



.16 

 .07 



.11 



.09 



558 

 40 



.22 

 .19 



.17 

 .22 



Table X. 



London Purple, one tree eight times sprayed, and one tree as 



Check, 1886. 



Fruit. 



When 

 Examined. 



"No. OF Apples 

 Examined. 



Injuries bt Codling Moth. 



Bene] 



Check Tree. 



Poisoned. 







Check 

 tree. 



Pois'nd 

 tree. 



No. 



Ratio. 



No. 



Ratio. 



Cor- 

 rected. 



Fallen 



Picked 



Grand total 



July 16 



Jii'.y 24 



927 

 366 

 146 

 84 

 243 



444 

 165 

 88 

 68 

 243 

 40 



486 

 165 

 73 

 47 

 207 

 62 



.52 

 .45 

 .50 

 .56 

 .85 

 1.00 



154 

 82 

 35 

 27 



171 

 26 



.35 

 .50 

 .40 

 .40 

 .70 

 .65 



.25 

 .54 

 .33 

 .29 

 .36 

 .02 



.52 



July 31 



Augusts? 



September 3. .. 



.34 

 .48 

 .58 

 .98 



1,828 

 208 

 2,036 



1,048 

 157 

 1, 206 



1,040 

 158 

 1,198 



.57 

 .76 



.59 



495 

 96 

 591 



.47 

 .61 



49 



.37 

 .67 



.35 

 .12 

 .17 







