ONE-SPRAY METHOD FOR CODLING MOTH, ETC. 

 THE CODLING MOTH. 



105 



Table XVI shows the results of treatments of Plats I, II, and III, 

 compared with the unsprayed plat (Plat IV) as to injury from the 

 codling moth. 



Table XVI. — Number of sound and wormy apples for each tree from lime-sulphur, 

 Bordeaux, one-spray, and unsprayed plats. Wichita, Kans., 1911. 



PLAT I. LIME-SULPHUR DEMONSTRATION. 



Condition of fruit. 



Tree 1. 



Tree 2. 



Tree 3. 



Tree 4. 



Tree 5. 



Tree 6. 



Total 

 for 

 plat. 



Total 

 per cent 

 of sound 



fruit. 





Ill 

 2,993 



194 

 3,214 



157 

 3,409 



177 

 3,079 



127 



2,867 



204 

 4,013 



970 

 19,575 













Total 



3,104 

 96.42 



3,408 

 94.30 



3,566 

 95.59 



3,256 

 94.56 



2,994 

 95.75 



4,217 

 95.16 



20, 545 







95.28 







PLAT II. BORDEAUX DEMONSTRATION. 



Wormy. 

 Sound . . 



Total 



Per cent sound . 



579 

 3,139 



3,718 

 84.42 



457 

 2,324 



2,781 

 83.56 



6.51 



4,040 

 83.88 



3,267 



3.727 



87.65 



474 

 3,475 



3,949 

 87.99 



2,525 



3.215 

 18,119 



3,119 21,334 

 80.95 



PLAT III. ONE-SPRAY METHOD. 



Wormy. 

 Sound . . 



Total 



Per cent sound. 



285 

 2,168 



2,453 

 88.38 



397 



3,552 



3,949 

 89.94 



193 

 630 



823 

 76.54 



213 



602 



815 



2.s7 

 721 



1,008 

 71.52 



168 

 529 



75. 



1,543 



8.202 



9,745 



84.16 



PLAT IV. UNSPRAYED. 



Wormy . 

 Sound . . 



Total 



Per cent sound. 



1,769 

 1,114 



2, 883 

 38.64 



3,056 

 38.15 



2,232 



3,192 

 30.07 



2,709 

 1,000 



3,709 

 26.96 



2,072 

 704 



2,776 

 25.36 



2. 245 

 645 



2. 890 

 22.31 



12.917 

 5,589 



18,506 



By again comparing the one-spray method (Plat III) with the 

 commercial lime-sulphur plat (Plat I) , as has been done in the fore- 

 going experiments, it will be noted that Plat I shows 95.28 per cent 

 of fruit free from codling-moth injury as against 84.16 per cent free 

 from this insect on Plat III. Plat IV, the unsprayed plat, shows 

 only 30.20 per cent fruit free from codling-moth injury. Thus the 

 commercial lime-sulphur demonstration plat shows an increase of 

 sound fruit over the unsprayed plat of 65.08 per cent, while the one- 

 spray plat shows an increase of 53.96 per cent over the unsprayed 

 plat. The number of apples counted on the four plats, respectively, 

 were 20,545, 21,334, 9,745, and 18,506, making a total of 70,130 for 

 the four plats. One point in favor of the demonstration plat is that 



