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

Southwest Disease Report: Most recent wetting event (Report issued 3/28/2024 10:40 )

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
Allegan 3/26 1-2AM 3/26 3-4PM Wet: 14
Span: 15
52.2 0.25 Light (Symptoms appear: 4/24) No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Bainbridge / Watervliet 3/26 1-2AM 3/26 1-2PM Wet: 10
Span: 13
51.8 0.21 None No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Benton Harbor (SWMREC) 3/26 1-2AM 3/26 1-2PM Wet: 7
Span: 13
52.5 0.15 None No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Berrien Springs 3/26 Midnight-1AM 3/26 9-10AM Wet: 8
Span: 10
52.8 0.19 None No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Cassopolis 3/26 1-2AM 3/26 2-3PM Wet: 12
Span: 14
51.7 0.5 None No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Dowagiac 3/26 1-2AM 3/26 2-3PM Wet: 10
Span: 14
51.8 0.25 None No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Fennville 3/26 1-2AM 3/26 2-3PM Wet: 9
Span: 14
51 0.29 None No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Grand Junction 3/26 1-2AM 3/26 2-3PM Wet: 12
Span: 14
52.9 0.26 Light (Symptoms appear: 4/24) No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Hartford 3/26 1-2AM 3/26 1-2PM Wet: 8
Span: 13
51.8 0.23 None No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Keeler 3/26 Midnight-1AM 3/26 2-3PM Wet: 10
Span: 15
51.2 0.29 None No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Lawrence / Teapot Dome 3/26 1-2AM 3/26 3-4PM Wet: 13
Span: 15
52.6 0.26 Light (Symptoms appear: 4/23) No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Lawton 3/26 1-2AM 3/26 2-3PM Wet: 9
Span: 14
51.9 0.51 None No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Oshtemo 3/26 1-2AM 3/26 5-6PM Wet: 16
Span: 17
50.5 0.43 Light (Symptoms appear: 4/24) No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
Scottdale 3/26 1-2AM 3/26 9-10AM Wet: 7
Span: 9
52 0.09 None No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM
South Haven 3/26 1-2AM 3/27 11AM-Noon Wet: 33
Span: 35
43 0.24 Moderate (Symptoms appear: 4/26) No risk until first bract leaves have expanded. No risk until pre-bloom period Most recent period shown: 3/21 11PM - Midnight to 3/28/2024 10-11AM