This is the final version of the 1997 Fireblight prediction using the MaryBlyt model for the Peach Ridge Weather Station in Sparta, Michigan.
Apple & Pear Fireblight Predictions
Philip Schwallier & Amy Brown
1997 Peach Ridge Data, June 18, 1997
Month
Day
Bloom Stage
Ave
Temp.
Precip.
Pear
EIP
Crab
EIP
Early
EIP
Mid
EIP
Late
EIP
Risk
Comments
 
 
 
 
 
 
 
 
 
 
 
 
May
13
1st Bloom, Pears
40
 
0
 
 
 
 
Low
 
 
14
 
45
.14
0
 
 
 
 
Mod
 
 
15
 
43
.09
0
 
 
 
 
Mod
 
 
16
 
42
.08
0
 
 
 
 
Mod
 
 
17
Pears, 10% Bloom
47
 
0
 
 
 
 
Low
 
 
18
1st Bloom, Crab & Ida
53
.31
0
0
0
 
 
Mod
Strikes should show on 6-7
 
19
 
49
.01
0
0
0
 
 
Mod
 
 
20
 
48
 
0
0
0
 
 
Low
 
 
21
 
48
 
0
0
0
 
 
Low
 
 
22
1st Bloom, Mid
49
 
0
0
0
0
 
Low
 
 
23
 
55
 
0
0
0
0
 
Low
 
 
24
1st Bloom, Late
Full Bloom, Early
65
 
48
48
48
48
48
Moderate
 
 
25
 
52
 
32
32
32
32
32
Low
 
 
26
 
49
 
16
16
16
16
16
Low
 
 
27
Full Bloom, Mid
59
 
16
16
16
16
16
Low
 
 
28
 
57
 
28
28
28
28
28
Low
 
 
29
Full Bloom, Late
Petal Fall, Pears
56
.19
Drizzle
19
19
19
19
19
Moderate
Strikes should show on 6-10
 
30
Petal Fall, Early
59
.06
Humid
10
10
10
10
10
Moderate
 
 
31
End Bloom, Pears
Petal Fall, Mid
62
Light Dew
Light Fog
22
22
22
22
22
Low
 
June
1
 
60
 
34
34
34
34
34
Moderate
 
 
2
Petal Fall, Late
64
 
70
70
70
70
70
Moderate
 
 
3
 
65
 
107
107
107
107
107
High
 
 
4
End Bloom, Ida
62
 
143
143
143
143
143
High
 
 
5
 
62
 
 
 
179
179
179
High
 
 
6
End Bloom, Paulared
65
.07
 
 
216
216
216
Infection A.
 
 
7
End Bloom, 
Fuji, Braeburn
65
 
 
 
 
252
252
High
Strikes from 5-18.
 
8
 
62
 
 
 
 
361
361
High
 
 
9
End Bloom, 
Jons, Jonagold, 
Golden Del, Rome, Gala
67
 
 
 
 
446
446
High
 
 
10
 
70
 
 
 
 
 
 
 
Strikes from 5-29.
 
11
 
69
 
 
 
 
 
 
 
 
 
12
 
67
 
 
 
 
 
 
 
 
 
13
 
67
 
 
 
 
 
 
 
 
 
14
 
60
 
 
 
 
 
 
 
 
 
15
 
62
 
 
 
 
 
 
Infection A Strikes.
 
 
16
 
65
.78
 
 
 
 
 
 
Strikes found in Idared, 
maybe old.
 
17
 
62