DISEASES OF APPLES ON THE MARKET. 
11 
Table 7. — Summary, box crop, by varieties, 
1917 to 
1920— 
Continued. 
Variety. 
Total 
cars. 
Rots. 
Scald. 
Other 
diseases. 
Disease 
index. 
Long-storage varieties: 
8 
35 
66 
71 
191 
27 
7 
12 
1 
269 
58 
37 
1,656 
264 
3.7 
4.7 
7.6 
7.0 
8.3 
8.0 
10.8 
3.0 
3.0 
5.8 
4.2 
7.5 
7.1 
6.1 
17.1 
11.2 
2.6 
( 2 ) 
( 2 ) 
2.4 
1.8 
( 2 ) 
( 2 ) 
22 7 
16 2 
10 5 
Delicious ... .. . .. _ . 
7.3 
( 2 ) 
8 5 
Gano.- .. .-- -. - — -. -. - - 
10.4 
10 8 
Ortlev. 
10.2 
13 3 
Ralls (Gencton) 
3.0 
Rome Beauty .. .. .. . . . . . 
10.8 
5.7 
8.8 
4.8 
12.2 
( 2 ) 
6.1 
( 2 ) 
h) 
( 2 ) 
17.2 
16 4 
17 
12 4 
18 6 
2,702 
6.9 
5.8 
( 2 ) 
13.2 
669 
4 
7.4 
3.7 
( 2 ) 
1.7 
11.8 
Unknown varieties 
2 2 
2 Less than 1 per cent. 
BARREL CROP: DISEASE BY VARIETIES. 
As in the box crop, trie percentage of scald and the disease index 
(Table 8) are seen to increase as the length of the storage period 
increases. The percentage of rots is least in varieties ordinarily not 
stored at all, but is slightly smaller in long-storage than in short- 
storage varieties. The percentage of "other diseases" increases 
slightly as the length of the storage period increases. 
Table 8. — Summary, barrel crop, by varieties, 1917 to 1920 
Variety. 
Total 
cars. 
Rots. 
Scald. 
Other 
diseases. 
Disease 
index. 1 
1 
Varieties usually not stored at all : 
2 
5 
49 
8 
24 
Per cent. 
18.5 
7.2 
3.7 
6.0 
3.7 
Per cent. 
Per cent. 
( 2 ) 
3.0 
( 2 ) 
18.5 
10.2 
4.6 
Twenty Ounce.. . __ . . .. .. 
6.0 
1.0 
( 2 ) 
5.5 
88 
4.3 
( 2 ) 
( 2 ) 
5.6 
Short-storage varieties: 
Grimes Golden _ .. _ 
30 
61 
14 
10 
7 
5.6 
11.2 
11.7 
20.1 
4.1 
2.6 
3.3 
( 2 ) 
9.5 
11.6 
11.6 
"Russet" . --. __. 
( 2 ) 
6.0 
20.7 
26.1 
Wealthy 
4.1 
Total or average. ._ - 
122 
10.2 
1.2 
1.9 
13.4 
Long-storage varieties: 
6 
217 
177 
4 
11 
9 
55 
5 
11 
18 
65 
36 
162 
10.5 
7.4 
9.5 
2.0 
11.9 
7.3 
13.8 
13.4 
6.1 
21.2 
7.9 
2 
9.1 
25.0 
4.3 
5.4 
3.7 
5.1 
5.0 
2.7 
3.0 
40.5 
14.6 
18.0 
5.7 
4.8 
21.9 
7.3 
6.C 
(-) 
1.0 
2.7 
1.1 
3.5 
h 
20.9 
14.4 
17.3 
26. 2 
22.3 
Winesap -- - 
15.8 
7.3 
8.6 
." 1 
18.1 
18.3 
776 
9.3 
6.9 
2.1 
18.4 
536 
23 
3 
13. 2 
15.6 
8.6 
1.7 
8. 1 
23.3 
1.7 
5.3 
5.0 
16.6 
29.0 
37.0 
i See footnote to Table 3. 
2 Less than 1 per cent. 
