ONE-8PRAY METHOD FOR CODLING MOTH, ETC. 135 
The demonstration plat CXIII) 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. 
s 
s 
s 
¢ 
é 
2 
é 
z 
Zz 
4 
V/s 
~ 4G 
BLEW 
RR RRR 
hr ooo ow 
AHHH HH AH 
South 
S 
4APERIAL 
YNHHHOHORRRAR RRR ARH GY 
HON HOR RR RAKRR “E 
S 
s 
& 
HHH HGS HOD 
HHH SHIH OH DH OHH 44H 
QOH SOO HAARAARARARAKA 
HHO YHHARRARARA SN 
PAH HY 
HH WA SSORARAARKRRR ARO 
6H HO HUHIBID 9 
HHH HOHIS KH EHD 
HH WHY HI1OH OHH Y]IHHN HGH 
SHH HHO HODNH YH4%H G 
od 
YORH 
HH HA HHIO OH 
HHH WHHIKS KS 
XQ OH OG 
HHL YHA RRR RRS 
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. 
THE CODLING MOTH. 
The results of the respective treatments in the control of - codling 
moth are shown in Table XV. 
TaBLe XV.—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 
Condition of fruit. tees ie aaee Tree | Tree ane Tee ary for per cent 
7 2 5 5 * | plats sound 
WiGTmty a sa5 ne vinicn a dodwenicere ee 200 | 136) 155 83) ee AS) 1) 16851) TDG)» W50 py tesa eee: - 
SOU Ee eeteeee ene nance cemes cas 1,666 }1,172 )8,311 | 625 |1,494 |8,618 | 944 |2,278 | 15,108 |.......... 
PRO bAeeenttne Cain ula ace ae 1,866 |1,308 |3,466 | 708 |1,667 |3,786 |1,063 |2,428 | 16,292 |.......... 
Percent Sound. 2) ae: saa lke 89.29 |89.61 |95.53 |88.28 |89.69 |95.57 88.81 |93.83 |........ 92.74 
PLAT XV. ONE SPRAY. 
WOT Yio ei vae 5 as oan ee ce 250 | 253 86) 186) 250] 219) 122) 257) 1,623 |.......... 
SOONG eee sere cee cena cies Souk 3,577 |3,404 | 589 | 730 |1,429 |3,261 | 847 |4,042 | 17,879 |.......... 
Totals Fes cso-ceseel~ see eas 3,827 |3,657 | 675 | 916 |1,679 |3,480 | 969 [4,299 } 19,502 |.......... 
Percent sound 22-5 ocuseoee salen 93.49 |93.09 |87.26 |79.70 |85.12 |93.71 |87.41 |94.03 |........ 91.68 
PLAT XVII. UNSPRAYED. 
WON Y sac cmee scree ceeientee eee os 1,913 |1,425 | 865 | 983 538 1,792 |2,027 |1,247 | 11,790 |.......... 
Sound ReSabeLmeecenaor ss5coe kere (2,013 |1,684 | 965.) 524 |1,651 |2,361 |3,094 |1,548 | 13,840 |.......... 
Dotalesoseccs eden sacs paca. 3,926 |3,109 {1,830 |1,507 [3,189 /4,153 |5,121 |2,795 | 25,630 |.......... 
Per cent Soundss5. 8 fos aaa 51.28 [54.17 [52.19 |384.78 [51.78 |56.86 [60.42 |55.42 |........ 54.00 
30490°—Bull. 80—12 
