ONE-SPRAY METHOD FOR CODLING MOTH, ETC, 135 
The demonstration plat (XIII) received in all three treatments of a 
combined Bordeaux mixture and arsenate of lead spray. Plat XV 
(one-spray method) received only one arsenate of lead treatment just 
after the falling of the petals, but two additional applications of 
Bordeaux mixture were given to protect the fruit and foliage from 
fungous diseases. Plat XVII was left unsprayed throughout. The 
Ben Davis variety of apple was used entirely in the experiments. 
y 
S 
Ss 
Ss 
is 
Z 
Z 
Z 
(= 
Z 
Zz 
Sourh 
YORH S/M1PER/IAL BEW CAV/S 
Sis sae 
&bOoIN RRR HG 
Sd O@B@d gjo o 
HHH HHIDIDN O 
‘Th HO HOO 
HH HHH OHH 
HOH HAHARARARAR 
HHH G/F OS OOSGd4 o 
HHH OAHARRRARARAN 
HHH YW GY 
HOH YH KR 
BOW SOARAARARAR A RK 
HHA HAHARRRRRA KR YH YG 
WOH WH RARARRAR RK 
6 9H HIS HOD 
SHH HOI 
49H 46/45 Od OOO 
HH YH HIDOIN O 
HHH HHIO OH 
HHH HH/IO VOD 
HOH HWHITK DOS 
6 OH HHS KHKRHS 
8H 4H HIF HHHY OH 4 44 GH 
HHH 4 HH OHH V]H 4 ® G HY 
HHH HHO ODDO YH HH G 
Ko 
Fic. 36.—Diagram showing arrangement of plats and trees in the orchard of the Strathmore Orchard Co., 
near Mount Jackson, Va. Trees marked S sprayed by the owner; trees marked Z used for experiments 
with lime-sulphur wash. Circles indicate count trees, the numbers agreeing with those in the tables. 
(Original.) 
THE CODLING MOTH. 
The results of the respective treatments in the control of the codling 
moth are shown in Table XIII. 
TaBLE XIt1.—Number of sound and wormy apples for each tree from one-spray, demon- 
stration, and unsprayed plats. Mount Jackson, Va., 1909. 
PLAT XIII. DEMONSTRATION. 
Total Total 
for per cent 
Tree.| Tree | Tree | Tree | Tree | Tree | Tree | Tree 
5 : 
plats. | sound. 
Condition of fruit. 1. 2. 3. 4. 5. 6. 7. 8. 
VW Catt) a ae eC ORe Ee ee Sees 200 | 186) 155 S3ul melon LESS LOE 150) ed 1840 ee sasce 
SCREIIN CL eee oleate ere am homie farsi is area ley= 1,666 {1,172 |8,311 | 625 |1,494 |3,618 | 944 |2,278 | 15,108 |.......... 
4 ns 
Moree ease eee sete cee 1,866 {1,308 |38,466 | 708 |1,667 |3,786 |1,063 |2,428 | 16,292 |......_... 
Per cent sound.....-.- Sea EOE 89. 29 |89.61 |95.53 |88.28 |89.69 |95.57 |88.81 |93.83 |.....--- 92.74 
PLAT XV. ONE SPRAY. 
WWOnMiiss ss ao oa aoa ee ete | 250 253, 86 186 250 
SOUNG: st seeds sae Oe ae ete nie tp \3, 577 3, 404 589 730 |1,429 |3, 
Motal 225.84 vee pat eee 3,827 |3,657 | 675 | 916 |1,679 |¢ 
Recent Soule ss'cn ss sot oo 93.49 |93.09 |87.26 |79.70 |85. 12 
PLAT XVII. UNSPRAYED. 
WUC fae et = Sceeetat RN a get ee 1,913 |1, 425 865 983 |1,5388 |1,792 |2,027 |1,247 | 11,790 |.......... 
POUNCE Monee eee ne ska e 2,013 |1, 684 965 524 |1,651 |2,361 |3,0904 |1,548 | 13,840 |.......... 
“ity oyts) Le as NP a AR Od Sale Raat 3, 926118.109) 0) 830! 1,507 185.189) 14; 15s 512) |2).795.) 25). 680). . 222. 22. 
Pemcenmpsounden. «22s sce aks ae 51.23 |54.17 |52.19 |84.78 [51.78 |56.86 |60.42 [55.42 |........ 54.00 
