Online Phenology Models and Degree-day Calculator
damage
apple scab [apple]
disease model of Gadoury et al 1995


Output from uspest.org/wea disease degree-day/phenology model program:
	Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================ Model species/general links: apple scab [apple] Type: disease Model source/other links: Gadoury et al 1995 Calculation method: simp avg/grow Lower threshold: 32 degrees Fahrenheit Upper threshold: 110 degrees Fahrenheit Directions for starting/BIOFIX: bud break growth stage Starting/BIOFIX date: 3 15 Ending date: 7 0 Model validation status: not fully tested Region of known use: Pacific Northwest ==============================EVENTS TABLE================================ 1. 200 DDs after bud break 7% ascospore maturation 2. 300 DDs after bud break 21% ascospore maturation 3. 500 DDs after bud break 60% ascospore maturation 4. 750 DDs after bud break 95% ascospore maturation 5. 900 DDs after bud break 100% ascospore maturation ==============================MODEL OUTPUT================================ Weather station: 2017 C4999 APRSWXNET Montgomery CW4999 AL Lat32.3403 Long:-86.1400 Elev:233 mn day max min precip DD32 CUMDD32 event -- --- ----- ----- ------ ---- ------- ------- 3 15 49.00 32.00 0.00 8.50 8.5 * START * 3 16 55.00 28.00 0.00 9.50 18.0 3 17 74.00 43.00 0.01 26.50 44.5 3 18 71.00 53.00 0.02 30.00 74.5 3 19 72.00 42.00 0.00 25.00 99.5 3 20 82.00 46.00 0.00 32.00 131.5 3 21 86.00 59.00 0.00 40.50 172.0 3 22 80.00 58.00 0.00 37.00 209.0 7% ascospore maturation 3 23 78.00 53.00 0.00 33.50 242.5 3 24 80.00 61.00 0.00 38.50 281.0 3 25 81.00 58.00 0.70 37.50 318.5 21% ascospore maturation 3 26 81.00 56.00 0.04 36.50 355.0 3 27 83.00 65.00 0.00 42.00 397.0 3 28 82.00 67.00 0.00 42.50 439.5 3 29 86.00 63.00 0.00 42.50 482.0 3 30 82.00 59.00 0.43 38.50 520.5 60% ascospore maturation 3 31 77.00 59.00 0.00 36.00 556.5 4 1 82.00 51.00 0.00 34.50 591.0 4 2 88.00 53.00 0.81 38.50 629.5 4 3 71.00 59.00 0.43 33.00 662.5 4 4 77.50 54.60 0.00 34.05 696.5 Hx Hn 4 5 75.00 50.00 1.30 30.50 727.0 Hn 4 6 65.00 50.70 0.00 25.85 752.9 Vn 95% ascospore maturation 4 7 69.00 46.00 0.00 25.50 778.4 4 8 73.00 41.00 0.00 25.00 803.4 4 9 79.00 44.00 0.00 29.50 832.9 4 10 83.00 49.00 0.00 34.00 866.9 4 11 81.00 56.00 0.00 36.50 903.4 100% ascospore maturation 4 12 82.00 59.00 0.00 38.50 941.9 4 13 85.00 56.00 0.00 38.50 980.4 4 14 85.00 58.00 0.00 39.50 1019.9 4 15 84.00 59.00 0.00 39.50 1059.4 4 16 85.00 58.00 0.00 39.50 1098.9 4 17 85.00 63.00 0.00 42.00 1140.9 4 18 87.00 60.00 0.00 41.50 1182.4 4 19 85.00 63.00 0.01 42.00 1224.4 4 20 86.00 64.00 0.00 43.00 1267.4 4 21 87.00 64.00 0.00 43.50 1310.9 4 22 84.00 61.00 0.20 40.50 1351.4 4 23 67.00 56.00 0.02 29.50 1380.9 4 24 72.00 54.00 0.00 31.00 1411.9 4 25 80.00 53.00 0.00 34.50 1446.4 4 26 83.00 56.00 2.06 37.50 1483.9 4 27 82.00 68.00 2.06 43.00 1526.9 4 28 89.00 69.00 0.00 47.00 1573.9 4 29 88.00 68.00 0.00 46.00 1619.9 4 30 85.00 67.00 1.75 44.00 1663.9 5 1 78.00 59.00 0.47 36.50 1700.4 5 2 82.00 52.00 0.00 35.00 1735.4 5 3 85.00 57.00 0.33 39.00 1774.4 5 4 74.00 52.00 0.67 31.00 1805.4 5 5 56.00 49.00 0.02 20.50 1825.9 5 6 75.00 45.00 0.01 28.00 1853.9 5 7 77.00 53.00 0.00 33.00 1886.9 5 8 80.00 49.00 0.00 32.50 1919.4 5 9 86.00 55.00 0.00 38.50 1957.9 5 10 87.00 61.00 0.00 42.00 1999.9 5 11 83.00 62.00 0.00 40.50 2040.4 5 12 82.00 66.70 0.62 42.35 2082.8 Pn 5 13 81.00 63.00 0.62 40.00 2122.8 5 14 85.00 59.00 0.00 40.00 2162.8 5 15 87.00 61.00 0.00 42.00 2204.8 5 16 91.00 63.00 0.00 45.00 2249.8 5 17 90.00 65.00 0.24 45.50 2295.2 5 18 90.00 67.00 0.40 46.50 2341.8 5 19 91.00 69.00 0.00 48.00 2389.8 5 20 89.00 68.00 4.13 46.50 2436.2 5 21 83.00 72.40 4.13 45.70 2481.9 Pn 5 22 82.00 70.00 1.03 44.00 2525.9 5 23 75.00 67.00 0.10 39.00 2564.9 5 24 78.00 60.00 0.02 37.00 2601.9 5 25 75.00 57.00 0.02 34.00 2635.9 5 26 86.00 55.00 0.00 38.50 2674.4 5 27 86.00 61.00 0.00 41.50 2715.9 5 28 87.00 72.00 0.00 47.50 2763.4 5 29 85.00 69.00 0.04 45.00 2808.4 5 30 83.00 70.00 0.16 44.50 2852.9 5 31 80.00 69.00 0.16 42.50 2895.4 6 1 85.00 68.00 0.73 44.50 2939.9 6 2 87.00 69.00 0.21 46.00 2985.9 6 3 86.00 68.00 0.01 45.00 3030.9 6 4 87.00 72.00 0.09 47.50 3078.4 6 5 86.00 71.00 0.80 46.50 3124.9 6 6 81.00 69.00 0.42 43.00 3167.9 6 7 84.00 69.00 0.01 44.50 3212.4 6 8 84.00 63.00 0.00 41.50 3253.9 6 9 87.00 63.00 0.00 43.00 3296.9 6 10 88.00 67.00 0.00 45.50 3342.4 6 11 92.00 67.00 0.00 47.50 3389.9 6 12 90.00 70.00 0.67 48.00 3437.9 6 13 86.00 71.00 0.08 46.50 3484.4 6 14 86.00 70.00 0.00 46.00 3530.4 6 15 91.00 68.00 1.34 47.50 3577.9 6 16 84.00 68.00 0.15 44.00 3621.9 6 17 86.00 68.00 1.07 45.00 3666.9 6 18 81.00 71.00 1.07 44.00 3710.9 6 19 88.00 70.00 0.00 47.00 3757.9 6 20 79.00 71.00 0.95 43.00 3800.9 6 21 75.00 70.00 1.43 40.50 3841.4 6 22 82.00 73.00 0.66 45.50 3886.9 6 23 90.00 73.00 0.22 49.50 3936.4 6 24 89.00 72.00 0.13 48.50 3984.9 6 25 85.00 70.00 0.00 45.50 4030.4 6 26 87.00 65.00 0.00 44.00 4074.4 6 27 86.00 66.00 0.00 44.00 4118.4 6 28 90.00 67.00 0.02 46.50 4164.9 6 29 85.00 73.00 0.06 47.00 4211.9 6 30 84.00 73.00 1.45 46.50 4258.4 Extended Seasonal Forecast: NOAA NMME 7-month 1910 C4999 PRISM_rev1_4km 2012-2021
apple scab model - Gadoury et al 1995
Location: 2017 C4999 Montgomery CW4999 AL
Extended Seasonal Forecast: NOAA NMME
DateDDsEvent
 3-22-17 2097% ascospore maturation
 3-25-17 31821% ascospore maturation
 3-30-17 52060% ascospore maturation
 4-6-17 75395% ascospore maturation
 4-11-17 903100% ascospore maturation
degree-day graph of apple scab [apple] Gadoury et al 1995