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Kentucky Apple Integrated Crop Management Manual
Appendix 11
San Jose Scale Degree Day Chart
| Max Temp |
Min
Temp |
53 |
55 |
57 |
59 |
61 |
63 |
65 |
67 |
69 |
71 |
73 |
75 |
77 |
79 |
81 |
83 |
85 |
87 |
89 |
91 |
| 21 |
0.2 |
0.6 |
1.1 |
1.6 |
2.2 |
2.8 |
3.5 |
4.2 |
4.9 |
5.6 |
6.4 |
7.1 |
7.9 |
8.7 |
9.5 |
10.4 |
11.2 |
12.0 |
12.9 |
13.7 |
| 23 |
0.2 |
0.6 |
1.1 |
1.6 |
2.2 |
2.9 |
3.6 |
4.3 |
5 |
5.7 |
6.5 |
7.3 |
8.1 |
8.9 |
9.7 |
10.6 |
11.4 |
12.3 |
13.1 |
13.9 |
| 25 |
0.2 |
0.6 |
1.1 |
1.7 |
2.3 |
3.0 |
3.7 |
4.4 |
5.1 |
5.9 |
6.7 |
7.5 |
8.3 |
9.1 |
9.9 |
10.8 |
11.6 |
12.5 |
13.4 |
14.2 |
| 27 |
0.2 |
0.6 |
1.2 |
1.7 |
2.4 |
3.1 |
3.8 |
4.5 |
5.3 |
6 |
6.8 |
7.6 |
8.5 |
9.3 |
10.1 |
11.0 |
11.9 |
12.7 |
13.6 |
14.5 |
| 29 |
0.2 |
0.7 |
1.2 |
1.8 |
2.5 |
3.1 |
3.9 |
4.6 |
5.4 |
6.2 |
7 |
7.8 |
8.7 |
9.5 |
10.4 |
11.2 |
12.1 |
13.0 |
13.9 |
14.7 |
| 31 |
0.3 |
0.7 |
1.3 |
1.9 |
2.5 |
3.3 |
4.0 |
4.8 |
5.6 |
6.4 |
7.2 |
8 |
8.9 |
9.7 |
10.6 |
11.5 |
12.4 |
13.3 |
14.2 |
15.0 |
| 33 |
0.3 |
0.7 |
1.3 |
1.9 |
2.6 |
2.4 |
4.1 |
4.9 |
5.7 |
6.6 |
7.4 |
8.3 |
9.1 |
10 |
10.9 |
11.8 |
12.7 |
13.6 |
14.5 |
15.3 |
| 35 |
0.3 |
0.8 |
1.4 |
2.0 |
2.7 |
3.5 |
4.3 |
5.1 |
5.9 |
6.8 |
7.6 |
8.5 |
9.4 |
10.3 |
11.2 |
12.1 |
13.0 |
13.9 |
14.8 |
15.7 |
| 37 |
0.3 |
0.8 |
1.4 |
2.1 |
2.9 |
3.7 |
4.5 |
5.3 |
6.1 |
7 |
7.9 |
8.8 |
9.7 |
10.6 |
11.5 |
12.4 |
13.3 |
14.2 |
15.2 |
16.1 |
| 39 |
0.3 |
0.9 |
1.5 |
2.2 |
3.0 |
3.8 |
4.7 |
5.5 |
6.4 |
7.3 |
8.1 |
9.1 |
10 |
10.9 |
11.8 |
12.7 |
13.7 |
14.6 |
15.6 |
16.4 |
| 41 |
0.4 |
0.9 |
1.6 |
2.4 |
3.2 |
4.0 |
4.9 |
5.7 |
6.6 |
7.5 |
8.5 |
9.4 |
10.3 |
11.2 |
12.2 |
13.1 |
14.1 |
15.0 |
16.0 |
16.9 |
| 43 |
0.4 |
1.0 |
1.8 |
2.5 |
3.4 |
4.2 |
5.1 |
6.0 |
6.9 |
7.9 |
8.8 |
9.7 |
10.7 |
11.6 |
12.6 |
13.6 |
14.5 |
15.5 |
16.4 |
17.3 |
| 45 |
0.4 |
1.1 |
1.9 |
2.8 |
3.6 |
4.5 |
5.4 |
6.4 |
7.3 |
8.3 |
9.2 |
10.2 |
11.1 |
12.1 |
13.1 |
14.0 |
15.0 |
16.0 |
17.0 |
17.9 |
| 47 |
0.5 |
1.3 |
2.1 |
3.0 |
3.9 |
4.9 |
5.8 |
6.8 |
7.7 |
8.7 |
9.7 |
10.7 |
11.6 |
12.6 |
13.6 |
14.6 |
15.6 |
16.5 |
17.5 |
18.5 |
| 49 |
0.6 |
1.5 |
2.4 |
3.4 |
4.4 |
5.3 |
6.3 |
7.3 |
8.3 |
9.3 |
10.2 |
11.2 |
12.2 |
13.2 |
14.2 |
15.2 |
16.2 |
17.2 |
18.2 |
19.1 |
| 51 |
1.0 |
2.0 |
3.0 |
4.0 |
5.0 |
6.0 |
7.0 |
8.0 |
9.0 |
10.0 |
11.0 |
12.0 |
13.0 |
14.0 |
15.0 |
16.0 |
17.0 |
18.0 |
19.0 |
19.9 |
| 53 |
2.0 |
3.0 |
4.0 |
5.0 |
6.0 |
7.0 |
8.0 |
9.0 |
10.0 |
11.0 |
12.0 |
13.0 |
14.0 |
15.0 |
16.0 |
17.0 |
18.0 |
19.0 |
20.0 |
20.9 |
| 55 |
n/a |
4.0 |
5.0 |
6.0 |
7.0 |
8.0 |
9.0 |
10.0 |
11.0 |
12.0 |
13.0 |
14.0 |
15.0 |
16.0 |
17.0 |
18.0 |
19.0 |
20.0 |
21.0 |
21.9 |
| 57 |
n/a |
n/a |
6.0 |
7.0 |
8.0 |
9.0 |
10.0 |
11.0 |
12.0 |
13.0 |
14.0 |
15.0 |
16.0 |
17.0 |
18.0 |
19.0 |
20.0 |
21.0 |
22.0 |
22.9 |
| 59 |
n/a |
n/a |
n/a |
8.0 |
9.0 |
10.0 |
11.0 |
12.0 |
13.0 |
14.0 |
15.0 |
16.0 |
17.0 |
18.0 |
19.0 |
20.0 |
21.0 |
22.0 |
23.0 |
23.9 |
| 61 |
n/a |
n/a |
n/a |
n/a |
10.0 |
11.0 |
12.0 |
13.0 |
14.0 |
15.0 |
16.0 |
17.0 |
18.0 |
19.0 |
20.0 |
21.0 |
22.0 |
23.0 |
24.0 |
24.9 |
| 63 |
n/a |
n/a |
n/a |
n/a |
n/a |
12.0 |
13.0 |
14.0 |
15.0 |
16.0 |
17.0 |
18.0 |
19.0 |
20.0 |
21.0 |
22.0 |
23.0 |
24.0 |
25.0 |
25.9 |
| 65 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
14.0 |
15.0 |
16.0 |
17.0 |
18.0 |
19.0 |
20.0 |
21.0 |
22.0 |
23.0 |
24.0 |
25.0 |
26.0 |
26.9 |
| 67 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
16.0 |
17.0 |
18.0 |
19.0 |
20.0 |
21.0 |
22.0 |
23.0 |
24.0 |
25.0 |
26.0 |
27.0 |
27.9 |
| 69 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
18.0 |
19.0 |
20.0 |
21.0 |
22.0 |
23.0 |
24.0 |
25.0 |
26.0 |
27.0 |
28.0 |
28.9 |
| 71 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
20.0 |
21.0 |
22.0 |
23.0 |
24.0 |
25.0 |
26.0 |
27.0 |
28.0 |
29.0 |
28.9 |
| 73 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
22.0 |
23.0 |
24.0 |
25.0 |
26.0 |
27.0 |
28.0 |
29.0 |
30.0 |
29.9 |
| 75 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
24.0 |
25.0 |
26.0 |
27.0 |
28.0 |
29.0 |
30.0 |
31.0 |
30.9 |
| 77 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
26.0 |
27.0 |
28.0 |
29.0 |
30.0 |
31.0 |
32.0 |
31.9 |
|
