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 MF26038 MILTON_FREEWATER_GROWERS Davis Benito OR Lat45.9742 Long:-118.4092 Elev:866 mn day max min precip DD51 CUMDD51 event -- --- ----- ----- ------ ---- ------- ------- 4 25 65.40 40.00 0.00 4.93 4.9 * START * 4 26 67.40 40.30 0.00 5.83 10.8 4 27 63.10 46.90 0.00 4.90 15.7 4 28 71.00 49.40 0.00 9.39 25.0 4 29 57.60 49.50 0.00 2.83 27.9 4 30 68.70 47.60 0.00 7.74 35.6 5 1 78.60 38.10 0.00 10.55 46.2 5 2 85.00 42.90 0.00 14.49 60.7 5 3 89.50 59.90 0.00 23.70 84.4 5 4 78.40 57.10 0.00 16.75 101.1 5 5 69.30 45.80 0.00 7.61 108.7 Hx Hn 5 6 77.00 50.50 0.00 12.78 121.5 5 7 84.00 50.90 0.00 16.45 137.9 5 8 77.90 59.20 0.00 17.55 155.5 5 9 64.50 47.60 0.00 5.71 161.2 5 10 73.00 37.10 0.00 7.88 169.1 5 11 83.30 46.00 0.00 14.44 183.5 Vx Vn 5 12 86.50 64.10 0.00 24.30 207.8 5 13 82.10 44.40 0.00 13.44 221.3 5 14 68.20 53.50 0.00 9.85 231.1 5 15 58.50 51.20 0.00 3.85 235.0 5 16 72.90 52.20 0.00 11.55 246.5 5 17 79.30 48.30 0.00 13.14 259.7 5 18 81.80 56.10 0.00 17.95 277.6 5 19 67.60 49.60 0.00 7.77 285.4 5 20 62.90 42.70 0.00 4.17 289.5 5 21 65.40 44.50 0.00 5.54 295.1 5 22 67.70 52.20 0.00 8.95 304.0 5 23 70.50 51.10 0.00 9.80 313.8 Vx 100 degree-days until first crawler 5 24 76.40 50.00 0.00 12.28 326.1 5 25 79.00 49.40 0.00 13.36 339.5 5 26 70.60 53.20 0.00 10.90 350.4 5 27 68.30 50.90 0.00 8.60 359.0 5 28 76.50 49.30 0.00 12.08 371.1 5 29 79.00 54.30 0.00 15.65 386.7 5 30 76.40 45.10 0.00 10.86 397.6 Vx 5 31 83.20 40.50 0.00 13.12 410.7 first crawler emergence 6 1 84.40 50.10 0.00 16.31 427.0 6 2 76.30 65.20 0.00 19.75 446.8 6 3 86.80 55.00 0.00 19.90 466.7 6 4 91.90 50.50 0.00 20.05 486.7 6 5 92.30 53.80 0.00 21.81 508.5 6 6 99.50 61.90 0.00 27.62 536.1 Vx 6 7 93.00 63.80 0.00 26.99 563.1 6 8 85.30 68.00 0.00 25.65 588.8 6 9 77.60 57.50 0.00 16.55 605.3 UC Davis rec. crawler treatment 6 10 67.20 53.60 0.00 9.40 614.7 6 11 72.80 46.90 0.00 9.55 624.3 6 12 79.20 46.10 0.00 12.46 636.7 6 13 74.60 54.10 0.00 13.35 650.1 6 14 69.10 51.40 0.00 9.25 659.3 6 15 67.80 45.90 0.00 6.92 666.3 6 16 69.20 45.70 0.00 7.54 673.8 6 17 76.80 44.30 0.00 10.87 684.7 6 18 67.20 55.60 0.00 10.40 695.1 6 19 76.20 42.20 0.00 10.15 705.2 6 20 81.50 47.10 0.00 13.86 719.1 Vx 6 21 79.90 58.30 0.00 18.10 737.2 first second instars 6 22 85.00 46.00 0.00 15.27 752.5 6 23 80.40 62.00 0.00 20.20 772.7 6 24 72.80 53.80 0.00 12.30 785.0 6 25 79.80 49.30 0.00 13.72 798.7 6 26 87.90 47.50 0.00 17.14 815.8 6 27 91.20 54.40 0.00 21.71 837.5 6 28 92.60 62.40 0.00 26.17 863.7 6 29 93.00 60.10 0.00 25.16 888.9 6 30 87.30 63.90 0.00 24.60 913.5 7 1 87.00 57.00 0.00 21.00 934.5 7 2 89.00 61.90 0.00 24.45 958.9 first pupae 7 3 85.00 66.80 0.00 24.90 983.8 7 4 81.10 53.40 0.00 16.25 1000.1 7 5 80.50 51.60 0.00 15.05 1015.1 7 6 81.50 59.20 0.00 19.35 1034.5 1st male catch next generation 7 7 80.00 56.80 0.00 17.40 1051.9 first mating next generation 7 8 77.20 60.40 0.00 17.80 1069.7 7 9 77.10 57.90 0.00 16.50 1086.2 7 10 67.70 58.30 0.00 12.00 1098.2 7 11 79.40 58.70 0.00 18.05 1116.2 7 12 79.00 56.30 0.00 16.65 1132.9 7 13 83.70 56.80 0.00 19.25 1152.1 7 14 88.90 51.50 0.00 19.20 1171.3 7 15 81.70 56.80 0.00 18.25 1189.6 7 16 82.50 55.50 0.00 18.00 1207.6 7 17 85.50 54.40 0.00 18.95 1226.5 7 18 80.00 58.90 0.00 18.45 1245.0 7 19 78.80 56.80 0.00 16.80 1261.8 7 20 86.30 58.70 0.00 21.50 1283.3 7 21 92.60 52.80 0.00 21.42 1304.7 7 22 81.30 60.30 0.00 19.80 1324.5 7 23 83.00 53.50 0.00 17.25 1341.7 7 24 88.90 51.00 0.00 18.95 1360.7 7 25 96.90 55.60 0.00 24.03 1384.7 Vx 7 26 92.80 66.60 0.00 28.31 1413.0 7 27 92.60 64.10 0.00 27.01 1440.0 7 28 94.70 64.30 0.00 27.70 1467.7 first crawlers second generation 7 29 96.30 63.00 0.00 27.46 1495.2 7 30 90.50 66.50 0.00 27.47 1522.7 7 31 83.60 57.80 0.00 19.70 1542.4 8 1 86.10 57.90 0.00 21.00 1563.4 8 2 79.20 59.30 0.00 18.25 1581.6 8 3 82.60 52.00 0.00 16.30 1597.9 8 4 91.30 49.30 0.00 19.35 1617.3 8 5 89.60 52.70 0.00 20.15 1637.4 8 6 85.00 59.30 0.00 21.15 1658.6 8 7 82.90 58.40 0.00 19.65 1678.2 8 8 76.50 51.30 0.00 12.90 1691.1 Vx 8 9 73.20 55.10 0.00 13.15 1704.3 8 10 80.30 53.00 0.00 15.65 1719.9 8 11 88.50 52.00 0.00 19.25 1739.2 8 12 92.80 53.60 0.00 21.88 1761.0 8 13 90.50 56.60 0.00 22.52 1783.6 8 14 90.90 61.60 0.00 25.18 1808.7 8 15 96.10 62.10 0.00 26.98 1835.7 Vx 8 16 90.20 60.50 0.00 24.34 1860.1 8 17 91.30 60.90 0.00 24.99 1885.1 8 18 96.80 58.50 0.00 25.41 1910.5 Vx 8 19 87.40 55.70 0.00 20.55 1931.0 8 20 90.60 50.30 0.00 19.46 1950.5 8 21 93.70 55.70 0.00 23.21 1973.7 Vx 8 22 79.50 52.60 0.00 15.05 1988.7 Vx 8 23 80.80 50.10 0.00 14.52 2003.2 8 24 82.90 53.50 0.00 17.20 2020.4 8 25 85.20 49.40 0.00 16.44 2036.9 8 26 86.50 48.10 0.00 16.64 2053.5 8 27 86.60 60.80 0.00 22.70 2076.2 8 28 86.20 60.20 0.00 22.20 2098.4 Vn 8 29 94.40 53.90 0.00 22.53 2121.0 Vx 8 30 79.20 57.50 0.00 17.35 2138.3 8 31 81.70 53.30 0.00 16.50 2154.8 Forecast using: 10 yr Hist Avg MF26038 2006-2015
San Jose scale model - Rice etal
Location: 2016 MF26038 Davis Benito OR
DateDDsEvent
 5-23-16 314100 degree-days until first crawler
 5-31-16 411first crawler emergence
 6-9-16 605UC Davis rec. crawler treatment
 6-21-16 737first second instars
 7-2-16 959first pupae
 7-6-16 10341st male catch next generation
 7-7-16 1052first mating next generation
 7-28-16 1468first crawlers second generation
degree-day graph of San Jose scale [tree fruits] Rice etal (1982)