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  • Michigan State University Extension
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Upper Peninsula Disease Report: Most recent wetting event (Report issued 4/18/2024 0:44 )

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).

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 Time Period Assessed
Chatham 4/16 10-11PM Ongoing. Last hour with moisture: 4/18 11PM - Midnight
Some estimated data used		 Wet: 19
Span: 26		 42.8 1.9 None None No risk until pre-bloom period Most recent period shown: 4/11 11PM - Midnight to 4/18/2024 10-11AM
Hourly data estimated for: 4/11/2024 Midnight-1AM - 4/16/2024 5-6AM (126 hours); 4/16/2024 7-8AM - 4/17/2024 9-10PM (39 hours); Total of 165 estimated hours
Some estimated data used.
Escanaba 4/16 10-11PM Ongoing. Last hour with moisture: 4/18 11PM - Midnight Wet: 19
Span: 26		 42.8 1.01 None None No risk until pre-bloom period Most recent period shown: 4/11 11PM - Midnight to 4/18/2024 10-11AM
McMillan / Newberry 4/17 2-3AM Ongoing. Last hour with moisture: 4/18 11PM - Midnight Wet: 12
Span: 22		 42 0.38 None None No risk until pre-bloom period Most recent period shown: 4/11 11PM - Midnight to 4/18/2024 10-11AM
Stephenson 4/16 8-9PM Ongoing. Last hour with moisture: 4/17 9-10PM Wet: 18
Span: 26		 43.1 0.92 None None No risk until pre-bloom period Most recent period shown: 4/11 11PM - Midnight to 4/18/2024 10-11AM
Hourly data missing for: 4/17/2024 11PM - Midnight (1 hour); Total of 1 missing hours

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