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 larve for the season for each tree of each plat and also the per- 
centages, by plats, enterig 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 
larve. The unsprayed plat (Plat V) may be taken to indicate the 
normal behavior of the larvee 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 II1.—Places of entrance into fruit by total larvex of the codling moth for each tree of 
each plat. Siloam Springs, Ark., 1909. 
PLAT I. ONE SPRAY. 
Total number of larvae 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: 
Cayenne ete eres |ninicene el aaoes lek eeo Alene ce ce[e Su coe e| le cmedasecasacee 1 
IGP eet rete seme emo 3 Reb. ostecctan 5 4 1 3 1 2 1 2 
SLE noe eee ate ie ea Cie tal (Nemes S Waste eee eee Nes 5) Abs Se sek looove Seba cceccteeeckc oe 
= = S| | 
Mota Peer © feared n= ees 5 4 1 3 1 2 1 3 
Second brood: " 1 ie waies 
Calyx Spe Cee Sint eters SASS Sie 91 70 69 20 32 31 4 55 
BIGGS Aeon ee eee 557 400 323 77 137 172 198 235 
PCRS Foo kala SST eee moe eee 53 48 27 18 12 24 34 25 
