a1 
TABLE 4.—Showing total number of clusters on each plat July 7, number of perfect 
clusters, number of part-perfect clusters, number of diseased or worthless clusters, and 
per cent of perfect clusters. 









Total No.| No. of eo No. of | Per cent 
Plat. Kind of treatment. of perfect ere diseased | of perfect 
clusters. | clusters. 5 tare clusters. | clusters. 
| . 
} | 
2) -Ammoniacal solution 2. -2-------.---< 346 Bade ere 2 99 
Se le NOcrGabM ent aa. 92 wise yO eee 340 240 71 29 70 
4 eModified'ean’ celeste-< 222 «=.2--<-..22==: 315 314 Le” see ees. 99 
De |e NOLUreaGMeMue soccaan see se ae ee oe cea 35d 236 69 50 66 
6 | Precipitated carbonate of copper solu- 
LOL nce BS oe eS Ee Oe ee ee 322 290 17 15 90 
fee NO tne ahMmenGusenses eee ce anes ee 317 172 96 49 54 
S 4| (Copper saccharates t= 2-.5-2- 222. sere 343 BY EN Ty (see eee eee cet oe 100 
O92 (NOTE SUID ON tease ae ae ne soe ae 267 151 48 | 68 56 
10 SIDES A ATTReE BE ees, See lee ee teh 315 =i 15 alah fae ee ae 100 
11 INosiReahmiente===—.5-=- be re Oe ee ee ee 289 160 78 51 55 
12 BoLd Gate mUSGUMGatsseeet- - sc < o>. ee | 363 362 je Se Sate 99 
13 INGxineduIMme muses ee ene ane oe oe 244 144 59 41 59 
14 | Copper acetate solution:~.-...--.----- 316 304 7 5 96 
15%, || SNGsGLetuMmeNtesse sco... 52 268 376 211 89 76 56 
16) | Copper chloride mixture... -..=---<- 326 315 8 3 96 
Lie SNGsiRenuMenibea 2526.56.85 ieee eS 344 185 67 92 53 
18 | Potassium sulphide solution.....-..-- 291 281 8 2 96 
TOME NGUCeAhMOnGs 4-5-2540 - 2. aos am nere 289 185 53 51 64 
/20-21| Sodium hyposulphite solution. ....-.- 179 126 31 29 70 
(22, Sees THREE OCC Ree ee ene ee Se 157 100 35 22 By} 
| 



A study of the foregoing table reveals the fact that the percentage 
of perfect clusters on the treated plats was 94.5, while on the untreated 
it was 61.4, a difference of 33.1 in favor of the treated. As regards 
preventives against rot the various preparations stand as follows: 
Per cent. 
PC Oppce SAcenarape, a Mieinixbure 22 2.250 502 2S oo dk hte ok eee 100 
II. Bordeaux mixture, ammoniacal solution, modified eau celeste ......---- 99 
Il. Copper acetate solution, copper chloride mixture, potassium sulphide 
SUES COST eS 2 SS ee Oe ene Re Ee ot Ra a es a aes a IRE Py 96 
iY Precetpitated carbonate of copper solution =... -.. 2:.'...-2.22<-. 2.4! ee. 90 
Pee sotimuriy posulplite solution + 5... 2-2 so. fees bocce bo 8s eke ee 70 
Nothing further was done in the vineyard until September 1, when 
all the vines were carefully examined and observations made on the 
following points: 
(1) Injury to foliage and wood by the treatments. 
(2) Condition of foliage and wood of treated plats with respect to 
disease. 
(3) Number of fruit clusters on each plat. 
(4) Number of perfect clusters. 
(0) Number of part-perfect clusters. 
(6) Number of diseased or worthless clusters. 
(7) Per cent of perfect clusters. 
After making these observations the fruit was gathered and Sepa- 
rated according to the classification already given. Each lot was then 
weighed and classified as follows: 
(1) Total weight of fruit on each plat. 
(2) Weight of perfect, part-perfect, and worthless fruit. 
(3) Per cent of perfect fruit. 
