ONE-SPRAY METHOD FOE CODLING MOTH, ETC. 



133 



Table XI. — Places of entrance of fruit by total larvse for each tree of each plat. Crozet, 



Va., 1909. 



PLAT V. DEMONSTRATION. 





Total number of larvse of fruit for each tree, 

 first and second broods combined. 



Total 



for 

 plats. 



Percent- 

 ages of 

 larvse en- 

 tering at 

 calyx, 

 side, and 

 stem. 



Total 



Place of entrance. 



Tree 

 1. 



Tree 

 2. 



Tree 

 3. 



Tree 

 4. 



Tree 

 5. 



Tree 

 6. 



Tree 



7. 



Tree 



8. 



ber of 



larvae. 



First and second broods: 



8 



76 



6 



6 



105 



4 



5 



59 

 4 



13 

 159 

 19 



15 



148 

 10 



2 



46 



1 



4 



46 



4 



11 



68 

 8 



64 

 707 



56 



7.73 



85.49 



6.78 





Side 













Total 



90 



115 



68 



191 



173 



49 



54 



87 



827 



100.00 



827 







PLAT VI. ONE SPRAY. 



PLAT VIII. UNSPRAYED. 



First and second broods: 



35 

 443 



20 



12 



331 



24 



26 

 567 

 34 



7 

 150 

 11 



12 

 407 

 26 



23 

 319 



20 



17 



344 



30 



19 

 415 



28 



151 



2,976 



193 



4.55 



89-64 



5.81 





Side 













Total 



498 



367 



627 



168 



445 



362 



391 



462 



3,220 



100.00 



3,220 







First and second broods: 



Calyx , 



Side 



Stem 



Total. 



527 

 483 

 155 



1,165 



508 



107 



320 

 158 



07 



545 



258 

 231 

 71 



5(10 



878 



561 



•20'2 



677 

 620 

 147 



1,444 



512 

 439 

 138 



493 

 429 



1,001 



4,553 



3,429 

 1,056 



50.38 

 37.94 

 11.68 



100. 00 



The efficiency of the one-spray and demonstration treatments in 

 preventing worminess is shown in condensed form in Table XII. 

 Here it will be seen that the one-spray method was nearly as effective 

 as the demonstration in preventing calyx entrance, but gave little 

 benefit in regard to side infestation. 



Table XII. — Efficiency of the different treatments as shown by the percentages of wormy 

 apples. Crozet, Va., 1909. 





Percentage of wormy apples. 



Total 

 number 



of 

 wormy 

 apples. 



Total 

 number 



of 

 apples. 



Plat No. 



Calyx. 



' Side. 



Stem. 



Total. 



V. Demonstration 



Per cent. 

 0.45 

 0.73 

 23.67 



Per cent. 

 5.02 

 14.28 

 17.82 



Per cent. 

 0.40 

 0.92 

 5.49 



Per cent. 

 5.87 

 15.93 

 46.98 



827 

 3,320 

 9,038 



14,077 

 20,838 

 19,236 



VI. One-spray 



VIII. Unsprayed 





THE PLUM CURCULIO. 



The effect of the treatments in the W. S. Ballard orchard in con- 

 trolling the plum curculio on Plats V, VI, and VIII is shown in Table 

 XIII. Egg and feeding punctures are combined in the table under 

 1 'No. punctures." 



