144 



DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 



Table XXHT. — Injury by the plum curculio for entire season, Plats I, II, and III. 

 SaugatucJc, Mich., 1909 — Continued. 



PLAT I. UNSPRAYED— Continued. 





Number of punctured and sound apples, etc., 

 per tree in each plat. 



Total 



per cent 



fruit 





Tree 

 16. 



Tree 

 20. 



Tree 

 21. 



Tree 

 26. 



Tree 

 33. 



Total 

 for plat. 



free 



from 

 injury. 



No. punetures 



1,108 



454 



2,361 



2,815 



83.87 



883 



426 



2,857 



3,283 



86.96 



530 



329 



1,351 



1,680 



80.42 



1,265 

 644 

 2,718 

 3,362 

 80.85 



1,197 

 462 

 1,508 

 1,970 

 76.55 



9,843 



4,764 



33,111 



37,875 



















87 42 







PLAT II. DEMONSTRATION. 





Number of punctured and sound apples, 

 each plat. 



etc., per tree in 





Tree 

 101. 



Tree 

 102. 



Tree 

 105. 



Tree 

 106. 



Tree 



108. 



Tree 

 115. 



Tree 



117. 





24 



11 



1,614 



1,625 



99.38 



37 

 13 



1,752 

 1,765 

 99.26 



32 



15 

 2,145 

 2,160 

 99.31 



128 



60 



1,790 



1,850 



96.76 



169 



61 



5,658 



5,719 



98.93 



12 



5 



4,017 



4,022 



99.88 



102 





62 





5,734 





' 5, 796 





98.93 









Number of punctured and sound apples, etc., 

 per tree in each plat. 



Total 



per cent 

 fruit 





Tree 

 118. 



Tree 

 127. 



Tree 

 132. 



Tree 

 135. 



Tree 

 136. 



Total 

 for plat. 



free 



from 



injury. 





112 



32 



5,181 



5,213 



99.39 



89 



50 



4,377 



4,427 



98.87 



139 



58 



4,240 



4,298 



98.65 



398 



153 



4,070 



4,223 



96.38 



10 

 3 



1,717 

 1,720 

 99.83 



1,252 

 523 



42,295 

 42,818 









No. sound fruit 











98.77 









* PLAT III. ONE SPRAY. 















Number of punctured and sound apples, 

 each plat. 



etc., per tree in 





Tree 



224. 



Tree 

 225. 



Tree 

 232. 



Tree 

 236. 



Tree 

 237. 



Tree 

 238. 



Tree 

 239. 



No. punctures 



1,015 

 374 

 3,239 

 3,613 

 89.92 



278 



117 



4,588 



4,705 



97.51 



108 



35 



3,422 



3,457 



98.99 



198 



85 



3,011 



3,096 



97.25 



64 



30 



2,867 



2,897 



98.96 



67 



33 



3,518 



3,551 



99.07 



45 





19 



No. sound fruit 



3,105 





3,124 





99.39 









Number of punctured and sound apples, etc., per 

 tree in each plat. 



Total 



per cent 



fruit 





Tree 

 244. 



Tree 

 245. 



Tree 

 246. 



Tree 

 249. 



Tree 

 252. 



Tree 

 266. 



Total 

 for plat. 



free 



from 



injury. 





228 



65 



4,494 



4,559 



98.57 



255 



102 



4,239 



4,341 



97.65 



238 



91 



2,817 

 2,908 

 96.87 



194 



43 



3,400 



3,443 



98.75 



42 



20 



1,118 



1,138 



98.24 



143 



40 



1,995 



2,035 



98.03 



2,875 



1,054 



41,813 



42,867 





No. fruit punctured 





No. sound fruit 





No. fruit 





Per cent free from injury 



97.54 







