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NDAWN Small Grains Disease tool using Mesonet data

Station locations

Infection periods of tan spot, Stagonospora (Septoria) blotch and leaf rust

Interpretation: Yes = infection likely, No = infection unlikely. First, select the date when 50% of the flag-2 (or flag-1) leaves had disease symptoms. Then, consider a fungicide when 6-8 infection periods ("Yes" days) have accumulated.  (More info from orginal model)
Models
9/11
9/12
9/13
9/14
9/15
9/16
9/17
9/18
9/19
9/20
9/21
9/22
9/23
9/24
Tan Spot
No
No
No
Yes
No
No
No
No
Yes
Yes
Yes
No
No
No
Blotch
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Leaf Rust
No
No
No
No
No
No
No
Yes
No
No
No
No
No
No

Weather

Interpretation: Factors that most influence plant diseases are given here to help you mentally adjust for environmental differences between your field and the weather station. More complete environmental information from Mesonet are linked below. (More info from orginal weather talk)
Weather
9/11
9/12
9/13
9/14
9/15
9/16
9/17
9/18
9/19
9/20
9/21
9/22
9/23
9/24
Rain (in)
0
0
0.02
0
0
0
0
0
0
0.07
0.04
0
0
0
RH (%)
41
56
58
61
52
37
52
40
27
66
74
42
37
33
Temperature (F)
74
63
68
59
66
69
54
64
78
59
48
56
63
70
Wet period (hour)
3
1
4
11
2
0
2
0
11
11
13
0
3
0

 

The models used in this prediction were originally developed by NDSU Small Grains Program. SDSU takes no responsibility in fungicide application decisions. This is only a guide. Growers should scout individual fields and make their decisions based disease level in comparison to what is being predicted.
For further information or comments, please call 605-688-4521/605-688-6996 or Email:  emmanuel.byamukama@sdstate.edu