ONE-SPRAY METHOD FOR CODLING MOTH, ETC. 121 
of apples counted from this plat was 43,152. Plat III received the 
drenching mist spray with Vermorel nozzle and shows for the indi- 
vidual trees a range in percentage of fruit free from the codling moth 
of 83.79 to 91.99, with an average for all trees of 90.03. There were 
26,534 apples examined. Plat IV, which received the demonstration 
treatment of five applications, shows a total from the 11 trees of 
98.12 per cent of fruit free from the codling moth, with a range for 
individual trees of 96.58 to 99.31 per cent, and the total number of 
apples counted was 32,451. Plat V (the unsprayed block) shows, for 
the 13 trees from which counts were made, 66.74 per cent of fruit free 
from the codling moth, the range being from 53.45 to 78.20 per cent, 
the total number of apples counted being 24,428. Demonstration 
plat, No. IV, shows an increase over the unsprayed trees of 31.38 per 
cent of uninjured fruit and an increase of 5.36 per cent of uninjured 
fruit over the one-spray block (Plat I). 
The percentages of sound fruit from Plats I and IIT show very little 
difference in favor of a coarse spray over a mist spray; that is, 2.73 
per cent in favor of the former. 
In Table III are shown the places of entrance into apples of the 
total larvee for the season for each tree of each plat and also the per- 
centages, by plats, entering the fruit at the calyx, side, and stem. 
These data have been given in order to show what effect the methods 
of spraying might have upon the places of entrance into fruit by 
larvee. The unsprayed plat (Plat V) may be taken to indicate the 
normal behavior of the larve and shows that of the first brood 76.84 
per cent and of the second brood 80.34 per cent entered the apples 
at the calyx ends. 
TaBLeE III.—Places of entrance into fruit by total larvx of the codling moth for each tree of 
each plat. Siloam Springs, Ark., 1909. 
PLAT I. ONE SPRAY (BORDEAUX NOZZLES). 
Total number of larvee and places of entrance of fruit for each tree, by broods. 
Place of entrance. Tree 1. | Tree 2. | Tree 3. | Tree 4. | Tree 5. | Tree 6. | Tree 7. | Tree 8. 
First brood: 
GAINS Soc aadiohoroodeoodsatincoceeed | Seeacac| sae terre bAces sil clei se [Aen aed hl Rie aaletttrd be Ameo 1 
I Gree eee ne ee cence tanen 5 4 1 3 1 2 1 2 
SHRM ooste acoped dasaaessnome coud paeeesoal BEOReeed Se costd Meena Riemer mem (eR RISEA lord coe wear 
Potala wens eee esas 2 ee 5 4 1 3 1 2 1 3 
Second brood: 
CAliyacie er tee see ne ey ae eo 91 70 69 20 32 31 54 55 
S) GT ie oe eee ete enna 557 400 323 77 137 172 198 235 
Stents pe ae me ete a at 53 48 27 18 12 24 34 25 
