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Vol. 22, No. 1, March 22, 2007
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Diane Brown-Rytlewski, Plant Pathology
Beth Bishop, Entomology
Tracy Aichele, Enviro-weather |
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Comparison of forecasting models for Stewart’s Disease (Wilt), and survival potential of corn flea beetles.
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MAWN Station |
Town |
Stevens Boewe Model * avg. monthly temps
Dec+ Jan +Feb/3 |
Iowa State
Model** months w/ avg. monthly air temp > 24F (0-3) |
Albion |
Albion |
75.9 |
Trace |
Moderate/high |
2 |
Bainbridge |
Watervliet |
82.9 |
Light |
Moderate/high |
2 |
Bath |
Laingsburg |
73.6 |
Trace |
Moderate/high |
2 |
Bear Lake |
Bear Lake |
76.3 |
Trace |
Moderate/high |
2 |
Belding |
Belding |
74 |
Trace |
Moderate/high |
2 |
Benzonia |
Benzonia |
77.6 |
Trace |
Moderate/high |
2 |
Ceresco |
Ceresco |
78.1 |
Trace |
Moderate/high |
2 |
Clarksville |
Clarksville |
74.3 |
Trace |
Moderate/high |
2 |
Commerce |
Commerce Township |
76 |
Trace |
Moderate/high |
2 |
Constantine |
Constantine |
78.9 |
Trace |
Moderate/high |
2 |
East Leland |
Suttons Bay |
74.5 |
Trace |
Moderate/high |
2 |
Eastport |
Eastport |
75.8 |
Trace |
Moderate/high |
2 |
Elk Rapids |
Elk Rapids |
74.9 |
Trace |
Moderate/high |
2 |
Entrican |
Lakeview |
72 |
Trace |
Moderate/high |
2 |
Fairgrove |
Fairgrove |
72.8 |
Trace |
Moderate/high |
2 |
Fennville |
Fennville |
82.9 |
Light |
Moderate/high |
2 |
Freeland |
Freeland |
74.1 |
Trace |
Moderate/high |
2 |
Fremont |
Fremont |
76.5 |
Trace |
Moderate/high |
2 |
Grand Junction |
Grand Junction |
85.3 |
Moderate |
Moderate/high |
2 |
Hart |
Hart |
77.9 |
Trace |
Moderate/high |
2 |
Hartford |
Hartford |
80.6 |
Light |
Moderate/high |
2 |
Hawks |
Hawks |
65.5 |
Trace |
Low |
1 |
Hudson |
Clayton |
73.5 |
Trace |
Moderate/high |
2 |
Hudsonville |
Hudsonville |
81 |
Light |
Moderate/high |
2 |
Ithaca |
Ithaca |
71.9 |
Trace |
Moderate/high |
2 |
Kewadin |
Kewadin |
78.1 |
Trace |
Moderate/high |
2 |
Lapeer |
Lapeer |
73.6 |
Trace |
Moderate/high |
2 |
Lawton |
Lawton |
84.3 |
Light |
Moderate/high |
2 |
Linwood |
Kawkawlin |
71.7 |
Trace |
Moderate/high |
2 |
Ludington |
Ludington |
80.7 |
Light |
Moderate/high |
2 |
Mendon |
Mendon |
78.4 |
Trace |
Moderate/high |
2 |
MSU Hort |
East Lansing |
76.3 |
Trace |
Moderate/high |
2 |
Munger |
Munger |
79.3 |
Trace |
Moderate/high |
2 |
Northport |
Northport |
78.3 |
Trace |
Moderate/high |
2 |
NWMHRS |
Traverse City |
74.6 |
Trace |
Moderate/high |
2 |
Old Mission |
Old Mission |
60.1 |
Trace |
Low |
1 |
Petersburg |
Dundee |
78 |
Trace |
Moderate/high |
2 |
Pigeon |
Pigeon |
72.8 |
Trace |
Moderate/high |
2 |
Saginaw |
Saginaw |
72.6 |
Trace |
Moderate/high |
2 |
Sandusky |
Sandusky |
74 |
Trace |
Moderate/high |
2 |
Scottdale |
St. Joseph |
88.9 |
Moderate |
Moderate/high |
2 |
South Haven |
South Haven |
87.7 |
Moderate |
Moderate/high |
2 |
Sparta |
Sparta |
76.5 |
Trace |
Moderate/high |
2 |
SWMREC |
Benton Harbor |
83.6 |
Light |
Moderate/high |
2 |
West Olive |
West Olive |
82.5 |
Light |
Moderate/high |
2 |
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*Stevens-Boewe model to predict risk of Stewart’s Wilt-late leaf blight phase- Sum of mean monthly air tempera-tures for December, January and February : < 80ºF =trace; 80-85ºF=light, 85-90ºF= moderate; >90ºF= severe
** Iowa State Model- to predict risk of Stewart’s disease- number of months (0-3) where mean monthly air temperature was above 24ºF (December, January and February) 0=negligible, 1 = low, 2= moderate/high, 3=high |
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