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  • Michigan State University Ag Bio Research
  • Project Greeen

East Lansing (MSUHort) Grape Leaf Black Rot Report (Report issued 4/20/2014 9:48 )

Black rot model available after 4/15. Pre-bloom not reached. Using 6/1/2014 as a default date.
Time period assessed for wetting events: 4/6 3-4AM to 4/20/2014 8-9AM
No missing hourly data in this evaluation period.
Wet Period Station Start of wetting period End of wetting period Duration (Hrs.) Avg temp (F) Rainfall (in.) Grape Leaf Black Rot Progress toward infection
1 East Lansing (MSUHort) 4/7 6-7PM 4/7 11PM - Midnight Wet: 6
Span: 6
42.7 0.06 No risk until pre-bloom period 0%
2 East Lansing (MSUHort) 4/14 1-2AM 4/14 8-9AM Wet: 6
Span: 8
61.3 0.03 No risk until pre-bloom period 64%
3 East Lansing (MSUHort) 4/15 10-11AM 4/15 4-5PM Wet: 3
Span: 7
29.4 0.04 No risk until pre-bloom period 0%
4 East Lansing (MSUHort) 4/18 4-5AM 4/18 8-9AM Wet: 5
Span: 5
44.6 0.05 No risk until pre-bloom period 0%