Online Phenology Models and Degree-day Calculator
immaturedamageadult
San Jose scale [tree fruits]
insect model of Rice etal (1982)


Output from uspest.org/wea insect degree-day/phenology model program:
	Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================ Model species/general links: San Jose scale [tree fruits] Type: insect Model source/other links: Rice etal (1982) Calculation method: single sine Lower threshold: 51 degrees Fahrenheit Upper threshold: 90 degrees Fahrenheit Directions for starting/BIOFIX: first male scale from overwintering generation Starting/BIOFIX date: 3 15 Ending date: 8 31 Model validation status: partly validated Region of known use: Pacific Northwest ==============================EVENTS TABLE================================ 1. 305 DD after 1st male from OW gen: 100 degree-days until first crawler 2. 405 DD after 1st male from OW gen: first crawler emergence 3. 605 DD after 1st male from OW gen: UC Davis rec. crawler treatment 4. 723 DD after 1st male from OW gen: first second instars 5. 936 DD after 1st male from OW gen: first pupae 6. 1031 DD after 1st male from OW gen: 1st male catch next generation 7. 1050 DD after 1st male from OW gen: first mating next generation 8. 1455 DD after 1st male from OW gen: first crawlers second generation ==============================MODEL OUTPUT================================ Weather station: 2016 MF26036 MILTON_FREEWATER_GROWERS Davis Mackenzie Gala OR Lat:45.9714 Long:-118.4039 Elev:876 mn day max min precip DD51 CUMDD51 event -- --- ----- ----- ------ ---- ------- ------- 4 25 66.40 41.50 0.00 5.55 5.5 * START * 4 26 64.30 42.90 0.00 4.81 10.4 4 27 61.50 48.10 0.00 4.39 14.7 4 28 69.70 50.30 0.00 9.06 23.8 4 29 58.00 49.90 0.00 3.12 26.9 4 30 68.10 48.00 0.00 7.55 34.5 5 1 77.40 40.40 0.00 10.38 44.9 5 2 84.80 45.00 0.00 14.90 59.8 5 3 68.70 66.50 0.00 16.60 76.4 Hx 5 4 78.10 57.00 0.00 16.55 92.9 5 5 69.30 45.70 0.00 7.59 100.5 Hx Hn 5 6 76.00 51.20 0.00 12.60 113.1 5 7 82.40 52.60 0.00 16.50 129.6 5 8 79.10 60.10 0.00 18.60 148.2 5 9 65.00 47.70 0.00 5.97 154.2 5 10 77.80 40.00 0.00 10.50 164.7 Vx 5 11 83.20 46.00 0.00 14.39 179.1 Vx Vn 5 12 84.60 63.00 0.00 22.80 201.9 5 13 82.40 46.80 0.00 14.22 216.1 5 14 68.00 54.10 0.00 10.05 226.1 5 15 58.90 52.00 0.00 4.45 230.6 5 16 72.80 52.50 0.00 11.65 242.2 5 17 78.40 50.70 0.00 13.56 255.8 5 18 82.90 57.80 0.00 19.35 275.1 5 19 67.70 49.50 0.00 7.78 282.9 5 20 61.90 43.70 0.00 3.85 286.8 5 21 66.30 45.50 0.00 6.13 292.9 5 22 67.40 51.70 0.00 8.55 301.5 5 23 70.40 51.20 0.00 9.80 311.3 Vx 100 degree-days until first crawler 5 24 76.60 51.60 0.00 13.10 324.4 5 25 78.20 48.70 0.00 12.72 337.1 5 26 70.80 51.90 0.00 10.35 347.4 5 27 68.80 50.90 0.00 8.85 356.3 5 28 75.70 49.70 0.00 11.82 368.1 5 29 78.70 54.80 0.00 15.75 383.9 5 30 76.30 47.40 0.00 11.40 395.3 Vx 5 31 83.70 45.90 0.00 14.61 409.9 first crawler emergence 6 1 84.40 51.30 0.00 16.85 426.7 6 2 76.60 65.20 0.00 19.90 446.6 6 3 87.40 56.30 0.00 20.85 467.5 6 4 94.00 51.70 0.00 21.32 488.8 6 5 94.80 55.20 0.00 23.28 512.1 6 6 99.80 66.20 0.00 29.68 541.8 Vx 6 7 96.70 67.00 0.00 29.47 571.2 6 8 87.30 73.00 0.00 29.15 600.4 6 9 78.50 58.70 0.00 17.60 618.0 Vx UC Davis rec. crawler treatment 6 10 69.10 54.50 0.00 10.80 628.8 6 11 72.10 50.00 0.00 10.14 638.9 Vx Vn 6 12 78.60 49.20 0.00 13.09 652.0 Vx Vn 6 13 75.00 58.40 0.00 15.70 667.7 Vx Vn 6 14 68.80 51.60 0.00 9.20 676.9 Vx Vn 6 15 67.90 46.80 0.00 7.16 684.1 Vx Vn 6 16 68.40 49.40 0.00 8.10 692.2 Vx Vn 6 17 78.60 48.80 0.00 12.96 705.1 Vx Vn 6 18 67.30 55.60 0.00 10.45 715.6 Vx 6 19 77.20 46.70 0.00 11.64 727.2 Vx Vn first second instars 6 20 81.50 50.10 0.00 14.86 742.1 Vx Vn 6 21 79.80 58.50 0.00 18.15 760.2 Vx Vn 6 22 85.90 49.40 0.00 16.79 777.0 Vx Vn 6 23 81.60 61.60 0.00 20.60 797.6 Vx Vn 6 24 73.20 54.70 0.00 12.95 810.6 Vx 6 25 81.50 51.80 0.00 15.65 826.2 Vx Vn 6 26 91.60 52.50 0.00 20.91 847.1 Vx Vn 6 27 93.60 60.40 0.00 25.49 872.6 Vx Vn 6 28 95.30 66.60 0.00 28.96 901.6 Vx Vn 6 29 94.60 65.40 0.00 28.21 929.8 Vx Vn 6 30 90.70 66.30 0.00 27.45 957.2 Vx Vn first pupae 7 1 89.00 63.30 0.00 25.15 982.4 Vx Vn 7 2 90.00 63.10 0.00 25.55 1007.9 Vx Vn 7 3 85.70 64.80 0.00 24.25 1032.2 Vx Vn 1st male catch next generation 7 4 80.50 57.60 0.00 18.05 1050.2 Vx Vn first mating next generation 7 5 78.20 55.40 0.00 15.80 1066.0 Vx Vn 7 6 80.70 59.40 0.00 19.05 1085.1 Vx Vn 7 7 81.50 60.50 0.00 20.00 1105.1 Vx Vn 7 8 77.90 60.70 0.00 18.30 1123.4 Vx 7 9 77.00 57.60 0.00 16.30 1139.7 7 10 67.80 58.00 0.00 11.90 1151.6 7 11 80.80 58.50 0.00 18.65 1170.2 Vx 7 12 79.30 56.80 0.00 17.05 1187.3 7 13 83.40 57.50 0.00 19.45 1206.7 Vx 7 14 89.80 53.70 0.00 20.75 1227.5 Vx 7 15 81.50 58.70 0.00 19.10 1246.6 Vx 7 16 83.70 58.10 0.00 19.90 1266.5 Vx 7 17 88.10 56.70 0.00 21.40 1287.9 Vx 7 18 80.80 59.60 0.00 19.20 1307.1 Vx 7 19 80.20 58.20 0.00 18.20 1325.3 Vx 7 20 87.40 62.50 0.00 23.95 1349.2 Vx 7 21 95.20 54.50 0.00 23.05 1372.3 Vx 7 22 83.00 64.60 0.00 22.80 1395.1 Vx Vn 7 23 78.70 55.40 0.00 16.05 1411.2 7 24 90.40 53.50 0.00 20.93 1432.1 Vx 7 25 96.90 59.80 0.00 26.06 1458.1 Vx first crawlers second generation 7 26 95.90 72.40 0.00 31.86 1490.0 Vx Vn 7 27 88.10 66.50 0.00 26.30 1516.3 7 28 91.10 66.60 0.00 27.75 1544.1 7 29 101.70 65.40 0.00 29.63 1573.7 Vx 7 30 94.70 71.80 0.00 31.33 1605.0 Vx Vn 7 31 87.00 62.40 0.00 23.70 1628.7 Vx Vn 8 1 90.90 56.90 0.00 22.84 1651.5 Vx Vn 8 2 78.80 62.50 0.00 19.65 1671.2 Vx Vn 8 3 84.00 53.50 0.00 17.75 1688.9 Vx 8 4 93.10 55.10 0.00 22.72 1711.7 Vx Vn 8 5 94.20 55.30 0.00 23.16 1734.8 Vx 8 6 87.80 63.70 0.00 24.75 1759.6 Vx Vn 8 7 82.70 61.40 0.00 21.05 1780.6 Vx Vn 8 8 76.60 53.80 0.00 14.20 1794.8 Vx Vn 8 9 73.40 55.90 0.00 13.65 1808.5 8 10 84.40 56.00 0.00 19.20 1827.7 Vx Vn 8 11 90.30 57.60 0.00 22.94 1850.6 Vx Vn 8 12 95.70 61.30 0.00 26.50 1877.1 Vx Vn 8 13 97.80 65.40 0.00 28.93 1906.0 Vx Vn 8 14 95.60 69.90 0.00 30.61 1936.7 Vx Vn 8 15 96.00 63.90 0.00 27.83 1964.5 Vx Vn 8 16 95.70 65.00 0.00 28.29 1992.8 Vx Vn 8 17 95.10 64.00 0.00 27.66 2020.4 Vx Vn 8 18 96.70 65.80 0.00 28.90 2049.3 Vx Vn 8 19 90.60 64.00 0.00 26.26 2075.6 Vx Vn 8 20 92.00 54.50 0.00 22.05 2097.6 8 21 94.10 66.70 0.00 28.72 2126.4 Vx Vn 8 22 79.50 56.80 0.00 17.15 2143.5 Vx Vn 8 23 82.80 54.60 0.00 17.70 2161.2 Vx Vn 8 24 87.10 54.00 0.00 19.55 2180.8 Vx Vn 8 25 89.50 52.90 0.00 20.20 2201.0 Vx Vn 8 26 91.50 56.30 0.00 22.77 2223.7 Vx Vn 8 27 90.80 68.80 0.00 28.74 2252.5 Vx Vn 8 28 89.20 60.30 0.00 23.75 2276.2 Vx Vn 8 29 94.40 57.60 0.00 24.35 2300.6 Vx Vn 8 30 82.20 62.80 0.00 21.50 2322.1 Vx Vn 8 31 83.20 59.40 0.00 20.30 2342.4 Vx Vn Forecast using: 10 yr Hist Avg MF26036 2006-2015
San Jose scale model - Rice etal
Location: 2016 MF26036 Davis Mackenzie Gala
DateDDsEvent
 5-23-16 311100 degree-days until first crawler
 5-31-16 410first crawler emergence
 6-9-16 618UC Davis rec. crawler treatment
 6-19-16 727first second instars
 6-30-16 957first pupae
 7-3-16 10321st male catch next generation
 7-4-16 1050first mating next generation
 7-25-16 1458first crawlers second generation
degree-day graph of San Jose scale [tree fruits] Rice etal (1982)