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 MF23325 MILTON_FREEWATER_GROWERS Brown Bixby OR Lat45.9681 Long:-118.4325 Elev:846 mn day max min precip DD51 CUMDD51 event -- --- ----- ----- ------ ---- ------- ------- 4 25 67.00 40.30 0.00 5.66 5.7 * START * 4 26 66.70 42.60 0.00 5.84 11.5 4 27 61.70 47.80 0.02 4.42 15.9 4 28 71.30 49.10 0.00 9.44 25.4 4 29 58.30 51.00 0.00 3.65 29.0 4 30 69.40 47.90 0.01 8.16 37.2 5 1 79.20 38.10 0.00 10.82 48.0 5 2 85.70 42.20 0.00 14.67 62.6 5 3 89.70 53.70 0.00 20.70 83.3 5 4 80.10 57.00 0.09 17.55 100.9 5 5 69.20 45.40 0.00 7.48 108.4 Hx Hn 5 6 77.30 51.40 0.00 13.35 121.7 5 7 84.40 51.50 0.00 16.95 138.7 5 8 77.20 54.20 0.00 14.70 153.4 5 9 65.00 46.30 0.00 5.68 159.1 5 10 72.50 36.30 0.00 7.56 166.6 5 11 81.10 46.00 0.00 13.36 180.0 Vx Vn 5 12 85.80 63.10 0.00 23.45 203.4 5 13 83.00 44.80 0.00 13.98 217.4 5 14 67.70 52.90 0.10 9.30 226.7 5 15 58.80 52.00 0.04 4.40 231.1 5 16 75.00 52.30 0.03 12.65 243.8 5 17 81.00 48.40 0.00 14.01 257.8 5 18 83.00 57.30 0.00 19.15 276.9 5 19 66.40 49.50 0.00 7.14 284.1 5 20 63.10 43.30 0.00 4.33 288.4 5 21 64.50 46.60 0.00 5.50 293.9 5 22 69.00 53.30 0.00 10.15 304.0 5 23 70.60 51.30 0.00 9.95 314.0 Vx 100 degree-days until first crawler 5 24 74.70 51.50 0.00 12.10 326.1 5 25 82.10 51.20 0.00 15.65 341.7 5 26 71.70 53.80 0.00 11.75 353.5 5 27 67.90 51.00 0.00 8.45 361.9 5 28 74.00 48.70 0.00 10.65 372.6 5 29 78.80 54.90 0.00 15.85 388.4 5 30 78.40 46.70 0.00 12.23 400.7 5 31 85.50 42.00 0.00 14.53 415.2 first crawler emergence 6 1 83.00 49.90 0.00 15.53 430.7 6 2 76.80 65.00 0.00 19.90 450.6 6 3 86.60 56.80 0.00 20.70 471.3 6 4 95.20 51.50 0.00 21.58 492.9 6 5 94.90 54.10 0.00 22.77 515.7 6 6 99.90 60.30 0.00 26.94 542.6 Vx 6 7 91.80 63.30 0.00 26.36 569.0 6 8 85.60 67.30 0.00 25.45 594.4 6 9 77.90 59.00 0.00 17.45 611.9 UC Davis rec. crawler treatment 6 10 68.70 53.80 0.00 10.25 622.1 6 11 70.70 49.20 0.00 9.17 631.3 6 12 76.80 46.50 0.00 11.40 642.7 6 13 73.30 52.10 0.00 11.70 654.4 6 14 70.40 51.70 0.00 10.05 664.5 6 15 69.80 47.20 0.00 8.17 672.6 6 16 72.00 45.90 0.00 8.93 681.6 6 17 76.80 45.40 0.00 11.12 692.7 6 18 68.80 55.50 0.00 11.15 703.8 6 19 78.30 42.70 0.00 11.24 715.1 6 20 81.60 47.60 0.00 14.06 729.1 Vx first second instars 6 21 80.50 56.80 0.00 17.65 746.8 6 22 85.00 47.40 0.00 15.68 762.5 6 23 81.10 60.50 0.00 19.80 782.3 6 24 70.70 54.10 0.01 11.40 793.7 6 25 79.70 51.30 0.00 14.50 808.2 6 26 86.20 48.60 0.00 16.66 824.8 6 27 93.70 60.50 0.00 25.57 850.4 Vx Vn 6 28 90.70 62.10 0.00 25.35 875.7 6 29 94.60 60.40 0.00 25.77 901.5 Vx 6 30 90.50 66.00 0.00 27.22 928.7 Vx Vn 7 1 89.00 63.50 0.00 25.25 954.0 Vx Vn first pupae 7 2 90.00 63.00 0.00 25.50 979.5 Vx Vn 7 3 85.80 64.90 0.00 24.35 1003.8 Vx Vn 7 4 81.50 53.00 0.00 16.25 1020.1 7 5 79.30 53.20 0.00 15.25 1035.3 1st male catch next generation 7 6 79.00 58.80 0.00 17.90 1053.2 first mating next generation 7 7 81.70 54.50 0.00 17.10 1070.3 Vx 7 8 78.00 60.50 0.02 18.25 1088.6 Vx 7 9 77.00 57.70 0.00 16.35 1104.9 7 10 68.00 58.90 0.00 12.45 1117.4 7 11 81.00 59.60 0.00 19.30 1136.7 Vx 7 12 76.80 56.70 0.00 15.75 1152.4 7 13 83.50 58.10 0.00 19.80 1172.2 Vx 7 14 89.90 53.30 0.00 20.60 1192.8 Vx 7 15 81.60 55.80 0.00 17.70 1210.5 Vx 7 16 83.90 59.70 0.00 20.80 1231.3 Vx 7 17 88.30 54.60 0.00 20.45 1251.8 Vx 7 18 81.00 59.80 0.00 19.40 1271.2 Vx 7 19 79.50 59.70 0.00 18.60 1289.8 Vx 7 20 87.60 59.10 0.00 22.35 1312.1 Vx 7 21 95.30 54.60 0.00 23.13 1335.3 Vx 7 22 83.00 64.90 0.00 22.95 1358.2 Vx Vn 7 23 85.70 54.70 0.00 19.20 1377.4 7 24 90.30 52.40 0.00 20.34 1397.7 Vx 7 25 96.80 55.60 0.00 24.01 1421.8 Vx 7 26 96.00 72.60 0.00 31.97 1453.7 Vx Vn 7 27 96.00 65.50 0.00 28.60 1482.3 first crawlers second generation 7 28 97.00 62.60 0.00 27.43 1509.8 7 29 101.90 63.30 0.00 28.70 1538.5 Vx 7 30 94.80 70.40 0.00 30.68 1569.1 Vx 7 31 87.10 65.00 0.00 25.05 1594.2 Vx 8 1 91.00 56.70 0.00 22.78 1617.0 Vx Vn 8 2 78.60 61.80 0.00 19.20 1636.2 Vx Vn 8 3 84.20 53.40 0.00 17.80 1654.0 Vx 8 4 93.00 50.80 0.00 20.56 1674.5 Vx Vn 8 5 94.30 52.50 0.00 21.81 1696.3 Vx 8 6 82.70 57.70 0.00 19.20 1715.5 8 7 83.00 59.00 0.00 20.00 1735.5 Vx 8 8 75.00 53.40 0.00 13.20 1748.7 8 9 72.40 55.90 0.00 13.15 1761.9 8 10 84.60 56.20 0.00 19.40 1781.3 Vx 8 11 90.50 57.60 0.00 23.02 1804.3 Vx Vn 8 12 95.90 61.30 0.00 26.55 1830.9 Vx Vn 8 13 97.90 65.50 0.00 29.00 1859.9 Vx Vn 8 14 95.80 70.60 0.00 30.99 1890.8 Vx Vn 8 15 96.00 63.00 0.00 27.39 1918.2 Vx Vn 8 16 91.40 60.80 0.00 24.97 1943.2 8 17 91.80 60.70 0.00 25.07 1968.3 8 18 96.90 58.70 0.00 25.53 1993.8 Vx 8 19 88.60 55.60 0.00 21.10 2014.9 8 20 90.10 51.00 0.00 19.55 2034.5 8 21 92.20 59.20 0.00 24.46 2058.9 8 22 78.90 53.70 0.00 15.30 2074.2 8 23 82.30 48.40 0.00 14.66 2088.9 8 24 87.00 50.80 0.00 17.91 2106.8 Vx 8 25 84.90 49.90 0.00 16.48 2123.3 8 26 88.00 48.50 0.00 17.52 2140.8 8 27 88.10 66.80 0.00 26.45 2167.2 8 28 89.40 65.80 0.00 26.60 2193.8 Vx 8 29 92.10 54.40 0.00 22.04 2215.9 Vx 8 30 79.60 59.40 0.00 18.50 2234.4 8 31 81.50 54.10 0.00 16.80 2251.2 Forecast using: 10 yr Hist Avg MF23325 2006-2015
San Jose scale model - Rice etal
Location: 2016 MF23325 Brown Bixby OR
DateDDsEvent
 5-23-16 314100 degree-days until first crawler
 5-31-16 415first crawler emergence
 6-9-16 612UC Davis rec. crawler treatment
 6-20-16 729first second instars
 7-1-16 954first pupae
 7-5-16 10351st male catch next generation
 7-6-16 1053first mating next generation
 7-27-16 1482first crawlers second generation
degree-day graph of San Jose scale [tree fruits] Rice etal (1982)