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

Lawrence / Teapot Dome Disease Report: Wetting events since 5/6 (Report issued 3/29/2024 11:43 )

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: 4/7 to 5/20/2019. Events between 5/6 and 5/20/2019 shown.


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 Lawrence / Teapot Dome 5/7 3-4AM 5/8 1-2PM Wet: 23
Span: 35
46.8 0.75 Light (Symptoms appear: 5/22) None No risk until pre-bloom period
2 Lawrence / Teapot Dome 5/9 4-5AM 5/9 2-3PM Wet: 8
Span: 11
59.1 0.36 None None No risk until pre-bloom period
3 Lawrence / Teapot Dome 5/10 5-6AM 5/10 7-8AM Wet: 3
Span: 3
40.7 0.01 None None No risk until pre-bloom period
4 Lawrence / Teapot Dome 5/11 5-6PM 5/12 3-4AM Wet: 8
Span: 11
44.1 0.05 None None No risk until pre-bloom period
5 Lawrence / Teapot Dome 5/12 7-8PM 5/13 9-10AM Wet: 15
Span: 15
45.9 0.43 None None No risk until pre-bloom period
6 Lawrence / Teapot Dome 5/13 6-7PM 5/14 8-9AM Wet: 12
Span: 15
36.7 0.01 None None No risk until pre-bloom period
7 Lawrence / Teapot Dome 5/16 2-3PM 5/18 9-10AM Wet: 32
Span: 44
58.9 0.81 Heavy (Symptoms appear: 5/27) High No risk until pre-bloom period
8 Lawrence / Teapot Dome 5/18 6-7PM 5/19 3-4PM Wet: 21
Span: 22
64.4 0.09 Heavy (Symptoms appear: 5/29) High No risk until pre-bloom period