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  • Michigan State University Extension
  • Michigan State University Ag Bio Research
  • Project GREEEN

Benton Harbor (SWMREC) Disease Report: Wetting events since 4/4 (Report issued 4/18/2024 6:42 )

Wetting periods start with rainfall (at least 0.01 inch) and continue until the start of at least eight hours without moisture (rainfall, leaf wetness, high relative humidity). Wetting periods are classified as "ongoing" until eight consecutive dry hours have passed. After that, the official end of the wetting period is recorded (the start of the 8 hour dry period).

Time period assessed for wetting events: 3/4 to 4/18/2024. Events between 4/4 and 4/18/2024 shown.
Hourly weather data missing for: 4/16/2024 9-10AM (1 hour); Total of 1 missing hours
Hourly weather data estimated for: 4/16/2024 9-10AM (1 hour); Total of 1 estimated hours
Select leaf wetness sensor for analysis:
Wet Period Station Start of wetting period End of wetting period Duration (Hrs.) Avg temp (F) Rainfall (in.) Apple Scab (leaf) Cherry Leaf Spot Grape Leaf Black Rot
1 Benton Harbor (SWMREC) 4/3 6-7AM 4/4 4-5PM Wet: 31
Span: 35		 36.9 0.3 None None. No risk until first bract leaves have expanded. No risk until pre-bloom period
2 Benton Harbor (SWMREC) 4/7 2-3PM 4/7 7-8PM Wet: 4
Span: 6		 51.2 0.12 None None No risk until pre-bloom period
3 Benton Harbor (SWMREC) 4/11 3-4AM 4/12 10-11AM Wet: 31
Span: 32		 46.8 0.48 Moderate (Symptoms appear: 4/28) None No risk until pre-bloom period
4 Benton Harbor (SWMREC) 4/17 1-2AM 4/17 1-2AM Wet: 1
Span: 1		 54.6 0.09 None None No risk until pre-bloom period
5 Benton Harbor (SWMREC) 4/17 10-11AM 4/17 Noon-1PM Wet: 3
Span: 3		 62.7 0.15 None None No risk until pre-bloom period

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