ONE-SPRAY METHOD FOR CODLING MOTH, ETC. 



91 



Table III. — Places of entrance of fruit by total larvx of the codling moth for each tree of 

 each plat. Fishersville, Va., 1910. 



PLAT I. LIME-SULPHUR DEMONSTRATION. 



Total number of larvae and place of entrance of fruit for each tree, first and second 





Per- 









broods combined. 













cent- 

 age of 













| 















larvae 



Total 























Total 



enter- 



num- 























for 



ing at 

 calyx, 



ber of 



Place of entrance. 



Tree 



Tree 



Tree 



Tree Tree 



Tree 



Tree 



Tree 



Tree 



Tree 



plats. 



larvae. 





1. 



2. 



3. 



4. ! 5. 



6. 



7. 



8. 



9. 



10. 





side, 

 and 

 stem. 





First and second 



























broods: 



























Calyx 



49 



6 



14 



25 



5 



10 



16 



32 



4 



3 



164 



33.06 





Side 



60 

 32 



20 

 3 



26 



7 



40 

 15 



22 



8 



12 

 5 



11 

 4 



14 

 26 



12 

 6 



9 

 



226 



106 



45.57 

 21.37 





Stem 









Total 



141 



29 



47 



80 



35 



27 



31 



72 



22 



12 



496 



100. 00 



496 



PLAT II. ONE-SPRAY METHOD. 



First and second 

 broods: 



Calyx 



Side 



Stem 



Total 



8 



11 



6 



7 



1 



4 



12 



45 



49 



42 



30 



4 



14 



17 



29 



28 



15 



26 



1 



11 



4 



82 



88 



63 



03 



6 



29 



33 



11 



40 ! 

 26 ! 



77 



4 



4 



68 



13.46 



26 



13 



280 



55.45 



11 



6 



157 



31.09 



41 



23 



505 



100. 00 



505 



PLAT III. UNSPRAYED. 



First and second 

 broods: 



Calyx 



Side 



487 

 132 

 162 



252 

 78 

 93 



297 ! 296 

 88 ! 100 

 102 84 



244 

 00 

 51 



196 

 58 

 42 



561 

 93 

 158 



111 

 43 

 34 



251 



62 

 108 



1 



510 13,205 

 105 819 

 161 995 



63.86 

 16.32 







19.82 







Total 



781 



423 



487 480 



355 



296 



812 



188 



421 



776 15,019 



1 



100.00 



5,019 



Table IV. — Efficiency of the demonstration and one-spray treatments as shown by the 

 percentage of wormy apples . Fishersville, Va., 1910. 



Plat No. 



I. Demonstration 



II. One spray 



III. Unsprayed 



Percentage of wormy apples. 



Calyx. 



0.19 

 .13 



9.89 



Side, 



Stem. 



Total. 



0.26 



.54 



2.53 



0.12 



.31 



3.07 



0.57 



.98 



15.49 



Total 

 number 



of 

 wormy 

 apples. 



496 



505 



5,019 



Total 

 number 



of 

 apples. 



86, 467 

 51,150 

 32,384 



THE PLUM CURCULIO. 



Table V shows the effect of the treatments in the W. F. Gilkeson 

 orchard in controlling the plum curculio on the three plats. Egg 

 and feeding punctures are combined in the table under " Number of 

 punctures." 



55743°— Bull. 115, pt 2—12 2 



