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Output from uspest.org/wea invasive insect degree-day/phenology model program:
Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================
Model species/general links: Asian citrus psyllid, Diaphorina citri [citrus]
Type: invasive insect
Model source/other links: UC Davis IPM, OSU OIPMC model analysis
Calculation method: single sine
Lower threshold: 52 degrees Fahrenheit
Upper threshold: 90 degrees Fahrenheit
Directions for starting/BIOFIX: start with new leaf flush
Starting/BIOFIX date: 2 1
Ending date: 7 0
Model validation status: under development
Region of known use: Florida
==============================EVENTS TABLE================================
1. 630 DDs after leaf flush First OW adult egg-laying
2. 990 DDs after leaf flush Peak OW adult egg-laying
3. 1260 DDs after leaf flush Peak F1 nymphs
4. 2033 DDs after leaf flush Peak F1 adults 50% egg-laying
5. 2303 DDs after leaf flush Peak F2 nymphs
6. 3077 DDs after leaf flush Peak F2 adults 50% egg-laying
7. 3347 DDs after leaf flush Peak F3 nymphs
8. 4120 DDs after leaf flush Peak F3 adults 50% egg-laying
9. 4390 DDs after leaf flush Peak F4 nymphs
10. 5164 DDs after leaf flush Peak F4 adults 50% egg-laying
11. 5434 DDs after leaf flush Peak F5 nymphs
12. 6207 DDs after leaf flush Peak F5 adults 50% egg-laying
13. 6477 DDs after leaf flush Peak F6 nymphs
14. 7251 DDs after leaf flush Peak F6 adults 50% egg-laying
15. 7521 DDs after leaf flush Peak F7 nymphs
16. 8294 DDs after leaf flush Peak F7 adults 50% egg-laying
==============================MODEL OUTPUT================================
Weather station: 2017 E0852 APRSWXNET EW0852 Vernon AL Lat33.7944 Long:-88.2092 Elev:372
mn day max min precip DD52 CUMDD52 event
-- --- ----- ----- ------ ---- ------- -------
2 1 74.00 48.00 0.19 9.68 9.7 * START *
2 2 49.00 41.00 0.07 0.00 9.7
2 3 51.00 32.00 0.00 0.00 9.7
2 4 54.00 23.00 0.42 0.22 9.9
2 5 52.00 42.00 0.40 0.00 9.9
2 6 67.00 49.00 0.23 6.53 16.4
2 7 63.00 58.00 0.14 8.50 24.9
2 8 77.00 44.00 0.05 10.22 35.1
2 9 50.00 31.00 0.00 0.00 35.1
2 10 68.00 29.00 0.00 4.56 39.7
2 11 73.00 54.00 0.00 11.50 51.2
2 12 78.00 53.00 0.09 13.50 64.7
2 13 64.00 38.00 0.00 3.65 68.3
2 14 67.00 34.00 0.22 4.52 72.9
2 15 60.00 40.00 0.22 2.25 75.1
2 16 65.00 28.00 0.00 3.40 78.5
2 17 70.00 31.00 0.00 5.48 84.0
2 18 69.00 52.00 0.01 8.50 92.5
2 19 78.00 43.00 0.01 10.49 103.0
2 20 80.00 49.00 0.09 12.90 115.9
2 21 64.00 58.00 0.23 9.00 124.9
2 22 73.00 55.00 0.01 12.00 136.9
2 23 73.00 50.00 0.01 9.75 146.6
2 24 79.00 56.00 0.01 15.50 162.1
2 25 66.00 37.00 0.00 4.37 166.5
2 26 67.00 26.00 0.37 4.01 170.5
2 27 59.00 46.00 0.25 2.33 172.8
2 28 74.00 57.00 0.18 13.50 186.3
3 1 78.00 52.00 0.47 13.00 199.3
3 2 61.00 35.00 0.00 2.34 201.7
3 3 63.00 29.00 0.00 2.75 204.4
3 4 70.00 30.00 0.02 5.40 209.8
3 5 60.00 44.00 0.01 2.55 212.4
3 6 75.00 58.00 0.04 14.50 226.9
3 7 67.00 50.00 0.98 6.79 233.7
3 8 74.00 35.00 0.01 7.51 241.2
3 9 78.00 38.00 0.13 9.65 250.8
3 10 69.00 46.00 0.10 6.84 257.7
3 11 46.00 37.00 0.22 0.00 257.7
3 12 60.00 32.00 0.00 1.87 259.5
3 13 48.00 37.00 0.36 0.00 259.5
3 14 44.00 30.00 0.00 0.00 259.5
3 15 48.00 27.00 0.00 0.00 259.5
3 16 52.00 26.00 0.00 0.00 259.5
3 17 71.00 44.00 0.09 7.41 266.9
3 18 78.00 52.00 0.09 13.00 279.9
3 19 73.00 38.00 0.00 7.43 287.4
3 20 86.00 48.00 0.00 15.56 302.9
3 21 90.00 61.00 0.00 23.50 326.4
3 22 72.00 52.00 0.00 10.00 336.4
3 23 82.00 45.00 0.00 12.82 349.3
3 24 76.00 64.00 0.17 18.00 367.3
3 25 68.00 58.00 0.45 11.00 378.3
3 26 79.00 58.00 0.02 16.50 394.8
3 27 81.00 62.00 0.46 19.50 414.3
3 28 85.00 65.00 0.43 23.00 437.3
3 29 84.00 61.00 0.00 20.50 457.8
3 30 76.00 59.00 0.21 15.50 473.3
3 31 77.00 48.00 0.01 11.14 484.4
4 1 82.00 46.00 0.00 13.06 497.4
4 2 85.00 47.00 2.60 14.78 512.2
4 3 78.00 59.00 0.01 16.50 528.7
4 4 75.50 49.10 0.00 10.71 539.4 Hx Hn
4 5 87.00 44.30 0.00 15.06 554.5 Hn
4 6 67.00 49.80 0.00 6.74 561.2 Vn
4 7 70.00 41.00 0.00 6.50 567.7
4 8 78.00 32.00 0.00 8.88 576.6
4 9 82.00 42.00 0.00 12.18 588.8
4 10 82.00 51.00 0.00 14.58 603.4
4 11 82.00 57.00 0.00 17.50 620.9
4 12 84.00 58.00 0.00 19.00 639.9 First OW adult egg-laying
4 13 88.00 52.00 0.00 18.00 657.9
4 14 87.00 56.00 0.00 19.50 677.4
4 15 86.00 55.00 0.00 18.50 695.9
4 16 84.00 60.00 0.04 20.00 715.9
4 17 81.00 61.00 0.75 19.00 734.9
4 18 83.00 60.00 0.01 19.50 754.4
4 19 87.00 59.00 0.00 21.00 775.4
4 20 88.00 60.00 0.00 22.00 797.4
4 21 87.00 61.00 0.00 22.00 819.4
4 22 82.00 60.00 0.69 19.00 838.4
4 23 59.00 50.00 0.02 2.91 841.3
4 24 70.00 51.00 0.01 8.60 849.9
4 25 83.00 45.00 0.00 13.30 863.2
4 26 83.00 56.00 1.02 17.50 880.7
4 27 75.00 55.00 1.02 13.00 893.7
4 28 86.00 54.00 0.00 18.00 911.7
4 29 86.00 72.00 0.02 27.00 938.7
4 30 75.00 66.00 0.91 18.50 957.2
5 1 76.00 52.00 0.04 12.00 969.2
5 2 84.00 45.00 0.00 13.78 983.0
5 3 83.00 50.00 0.38 14.71 997.7 Peak OW adult egg-laying
5 4 64.00 49.00 0.22 5.08 1002.8
5 5 68.00 47.00 0.01 6.56 1009.3
5 6 79.00 41.00 0.00 10.59 1019.9
5 7 80.00 49.00 0.00 12.90 1032.8
5 8 86.00 44.00 0.00 14.51 1047.3
5 9 88.00 52.00 0.00 18.00 1065.3
5 10 90.00 56.00 0.00 21.00 1086.3
5 11 84.00 62.00 0.09 21.00 1107.3
5 12 81.00 63.00 1.86 20.00 1127.3
5 13 78.00 57.00 0.01 15.50 1142.8
5 14 86.00 49.00 0.01 15.87 1158.7
5 15 88.00 52.00 0.00 18.00 1176.7
5 16 90.00 56.00 0.00 21.00 1197.7
5 17 88.00 64.00 0.08 24.00 1221.7
5 18 84.00 68.00 0.08 24.00 1245.7
5 19 91.00 66.00 0.08 26.41 1272.1 Peak F1 nymphs
5 20 86.00 67.00 0.69 24.50 1296.6
5 21 86.00 66.00 0.05 24.00 1320.6
5 22 80.00 64.00 0.41 20.00 1340.6
5 23 77.00 64.00 0.31 18.50 1359.1
5 24 71.00 56.00 0.04 11.50 1370.6
5 25 79.00 50.00 0.00 12.72 1383.3
5 26 88.00 55.00 0.00 19.50 1402.8
5 27 87.00 66.00 0.24 24.50 1427.3
5 28 85.00 64.00 0.03 22.50 1449.8
5 29 84.00 67.00 0.03 23.50 1473.3
5 30 84.00 64.00 0.02 22.00 1495.3
5 31 89.00 62.00 0.01 23.50 1518.8
6 1 82.00 63.00 0.07 20.50 1539.3
6 2 86.00 69.00 0.01 25.50 1564.8
6 3 88.00 65.00 0.03 24.50 1589.3
6 4 87.00 70.00 1.10 26.50 1615.8
6 5 82.00 71.00 0.48 24.50 1640.3
6 6 76.00 70.00 0.56 21.00 1661.3
6 7 83.00 61.00 0.01 20.00 1681.3
6 8 80.00 54.00 0.00 15.00 1696.3
6 9 85.00 53.00 0.00 17.00 1713.3
6 10 90.00 56.00 0.00 21.00 1734.3
6 11 91.00 64.00 0.00 25.42 1759.7
6 12 92.00 70.00 0.00 28.74 1788.5
6 13 91.00 68.00 0.00 27.41 1815.9
6 14 92.00 69.00 0.00 28.25 1844.1
6 15 89.00 67.00 0.75 26.00 1870.1
6 16 92.00 66.00 0.00 26.76 1896.9
6 17 91.00 63.00 0.04 24.92 1921.8
6 18 89.00 70.00 1.29 27.50 1949.3
6 19 85.00 70.00 0.01 25.50 1974.8
6 20 88.00 69.00 0.01 26.50 2001.3
6 21 78.00 70.00 1.34 22.00 2023.3
6 22 83.00 72.00 0.44 25.50 2048.8 Peak F1 adults 50% egg-laying
6 23 83.00 74.00 0.96 26.50 2075.3
6 24 89.00 68.00 0.01 26.50 2101.8
6 25 80.00 63.00 0.00 19.50 2121.3
6 26 88.00 55.00 0.00 19.50 2140.8
6 27 89.00 60.00 0.00 22.50 2163.3
6 28 90.00 62.00 0.15 24.00 2187.3
6 29 84.00 70.00 0.28 25.00 2212.3
6 30 91.00 73.00 0.14 29.90 2242.2
Extended Seasonal Forecast: NOAA NMME 7-month 1910 E0852 PRISM_rev1_4km 2012-2021
Asian citrus psyllid, Diaphorina citri model - UC Davis IPMLocation: 2017 E0852 EW0852 Vernon AL Extended Seasonal Forecast: NOAA NMME | Date | DDs | Event |
| 4-12-17 | 640 | First OW adult egg-laying |
| 5-3-17 | 998 | Peak OW adult egg-laying |
| 5-19-17 | 1272 | Peak F1 nymphs |
| 6-22-17 | 2049 | Peak F1 adults 50% egg-laying |
![degree-day graph of Asian citrus psyllid, Diaphorina citri [citrus] UC Davis IPM](/cgi-bin/ddplotj.pl?3875822)
