REPORT OF THE STATE ENTOMOLOGIST I()I2 



Results of one spray applied late 



25 





SERIES 



YEAR 



TOTAL 

 FRUIT 



CLEAN 



FRUIT 





WORMY FRUIT 







PLOT 



Total 



Per 

 cent 



Total 



Per 

 cent 



End 

 wormy 



End 



and 



side 



wormy 



Side 



wormy 



Per 



cent 



end 



wormy 



3 



4 



4 



2 



I 



2 



tal and p 



1910 

 I9II 

 I9II 



er cent. 



7594 



8969 



16815 



4355 



8393 



I3H3 



57.35 

 93-57 



77.98 



3239 



576 



3702 



42.65 



6.43 



22.02 



148S 



186 



1422 



326 



95 



578 



1428 



295 



1702 





Grand to 



33378 



25861 



77-47 7517 



22.53 



3093 



999 



3425 



12.26 



The three plots receiving one late application during 1910 and 

 191 1 gave an average percentage of sound fruit of only 7747, 

 there being a range for individual plots from 57.35 to 93.57. The 

 average percentage of sound fruit is approximately midway between 

 that obtained from one spraying and the yield of the check trees, 

 namely, 77.47. The average benefit accruing from this one spray 

 is approximately 10 per cent of the entire yield. The large per- 

 centage of end wormy, namely, 12.26, shows that this treatment 

 lacks efficiency because of the failure to destroy caterpillars enter- 

 ing at the blossom end of the apples. 



Results obtained from two sprayings. This means a treatment 

 during the first period, that is within a week or ten days after the 

 blossoms fall, and another spraying in the second period, namely, 

 about three weeks after the blossoms drop. 



Results obtained from two sprayings 





SERIES 



YEAR 



TOTAL 

 FRUIT 



CLEAN FRUIT 



WORMY FRUIT 



PLOT 



Total 



Per 

 cent 



Total 



Per 



cent 



End 



wormy 



End 



and 



side 



wormy 



Side 



wormy 



Per 

 cent 

 end 



wormy 



2 



5 



2 



2 



2 



2 



1 



1 



1 



2 



1 



2 



tal and j 



1909 

 1909 

 1910 

 1910 

 I9II 

 I9II 



er cent. 



IO316 

 19275 

 2846 

 7316 

 19994 

 34019 



10206 

 19084 



2756 



6105 



19903 



33510 



98.93 

 99-01 

 96.84 

 83.45 

 99-54 

 98.50 



no 



191 



90 



I2II 



91 



509 



1.07 

 • 99 



3.16 



16.55 



.46 



1.50 



4 

 10 



6 

 127 



5 

 53 



7 

 9 



I 

 10 



3 

 54 



99 

 172 



83 

 1074 



83 

 402 





Grand to 



93766 



91564 



97.65 



2202 



2.35 



205 



u 



1913 



.308 



The six plots receiving two sprayings during 1909-11 produced 

 from 83.45 to 99.54 per cent of sound fruit or an average of 97.65, 



