RESULTS. | 23 
and possibly apple scab, these results would indicate that bitter-rot 
yields more completely to treatment than any other disease known to 
the writer. The infection period of bitter-rot being much longer, a 
greater number of applications are required to secure protection 
throughout the season, but it would seem that an apple coated with 
Bordeaux mixture would not be attacked by bitter-rot even under 
conditions otherwise most favorable to the fungus. 
TABLE II.—Scheme of spraying at Avon, Va., during the season of 1905, and its results. 
+4. 
| Treatment with pope caus mixture (5-5-50 | Picked Sept. 19 to 23. 
Plot numbers (2 trees to | | = ee ioe ; | 
ee ~All Nir lois SEN ees Percent- 
each plot). Con i lece S | x | a ~ = = i Sound | Rotten | age of 
EC aeally sil See esen sel etal ea fruit: fruit. | sound 
eS es eS aen eene eee tease fruit. 
| me eat ea | 
| | Bushels. | Bushels. | 
1 EE Lia eke RE Ae on eS Spe ctr Ce Mt AES Uhr le es Ps Nee eee |----|----|---- 18.50 30. 25 | 37.9 
Date Ws Ape REAL ee RE oe ee Mt GN Ue. We TU Sa EES a eal (cleat Reel see | 47.50 22-50% 67.8 
Ba ee a ees ee Ei acearatn rae Meares Beas | ES A Ley Mi, TUNED A TDN HE Nee eS aN | 56.00 | 2.00 | 96.5 
(1a PANS RST LS SRD eit Se aed FAP NE NEN TE ale ID ND TDS ee aH 54. 00 1.75 | 96.8 
Ey Ree ernie ee Rte ce yc ene ENTIRE 4} Np \\ = =| lad /t ‘I // | 32.75 peaks) || 96.6 
(Rees es Cla Ws ede ek Ie Se een yr | ” | a TENET A eh ae a yy 68. 50 70 98.9 
EIN iat Se ee acl ne ee Check—one untreated tree. . 00 10. 00 200.0 
USR SSeS eRe es ee ee nee HH de wd se ce|[eeclice oo| Ud Le Ms GE) 56. 50 14. 00 80.1 
Soe Sera) See nN Pa RRA eae op etd uw Wl, LIS Vs a S| pe po [aac apna OLY Me Li 7.00 6.50 51.8 
Re ee pene aM SA oO SPR es hl ees EE eal | aad Sead antler Wee AS NN a 28.50 6. 00 82.6 
TES Pas enn ee eee tern lt Nya Check—one untreated tree. . 00 17.00 a00.0 
Ts ahs eH ah Steen, § sea nie eames) (Mirae | pe evan eames Sl OAR AE li A AP or ere 59. 00 6.50 | 90.0 
DSSS Se A Rae epee te Marts Rene o Say eee eke ay area Sl A OEM OR UE 42. 25 6.50 | 86.6 
TORS ees asi aR Sate Rie cee eA Pte ORC an eae | ee Te eae el tee ees | SU? Ly Md 28. 50 24.75 HSaO 
(0) oo AS Fer ate ieaeiccte  arigty nt s Check—one untreated tree . 00 13. 00 00. 0 
1D) Fo Oa Ree ee ie eens) Check—one untreated tree. | . 00 20.75 a (0.0 
TDA is 6 Shes ee ae a ee eae RL omer Ves epetell besser lee Ves Ue, Hash 52.25 95) 90.8 
WSs Sak ear Sete ee pepigee ana aang Pe ae Nee 2 |r -e[ee| 52. 50 3.75 93.3 
TUG SES OG Re a Eee ea RS este REY gai eee al oa lien 40200 5. 00 88.8 
Barwon epee AEA SI ae Re Check—one untreated tree. | PAD) 16. 25 1.5 
a Of the check trees, A had 1 sound apple, B 6, and D 2, but the percentages were too small to show 
in the table. 
In the first column on the left of this table the numbers of the sprayed 
plots are given in figures and the unsprayed trees are indicated by let- 
ters. The dates of the applications are given at the heads of succeeding 
columns, and the ditto marks after each plot number refer to these 
dates. For example, the marks after Plot No. 1 indicate that this plot 
was sprayed April 8, May 1, and May 9; while Plot No. 12 was sprayed 
July 25, August 7 and 22, and September 4. The three columns on the 
right show the results in bushels of sound fruit, bushels of rotten 
fruit, and percentage of sound fruit for each plot, as determined when 
the crop was picked, September 19 to 23. The check plots are placed 
in the table about as they occurred in the orchard, Plot A being 
located near the lower side, while Plot E is at the upper side. 
Plot 1, as will be seen from the table, received but three applica- 
tions (those usually given in the treatment of apple scab), on April 8, 
May 1, and May 9, with the result that only 37.9 per cent of the fruit 
was saved from bitter-rot, showing that the treatment was stopped too 
eathy-e Ce lV «tio. 1) 
