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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: threecornered alfalfa hopper [legumes, grapes]
Type: insect
Model source/other links: OSU OIPMC model analysis
Calculation method: single sine
Lower threshold: 52 degrees Fahrenheit
Upper threshold: 100 degrees Fahrenheit
Directions for starting/BIOFIX: calendar date
No starting/BIOFIX date, set to: default date 1 1
Ending date: 7 0
Model validation status: under development - new pest of winegrapes
Region of known use: data collected in TX, ARK, LA, SC, KY, GA, CA
==============================EVENTS TABLE================================
1. 450 DDs after Jan 1: OW adult first oviposition
2. 780 DDs after Jan 1: OW adult peak OV
3. 1180 DDs after Jan 1: F1 late instar nymphs
4. 1430 DDs after Jan 1: First F1 adults
5. 2180 DDs after Jan 1: F1 peak adults, also F2 young nymphs
6. 2580 DDs after Jan 1: F2 late instar nymphs
7. 2830 DDs after Jan 1: First F2 adults
8. 3580 DDs after Jan 1: F2 peak adults, also F3 young nymphs (warmer climates only)
9. 4230 DDs after Jan 1: First F3 adults (warmer climates only)
==============================MODEL OUTPUT================================
Weather station: 2017 D9947 APRSWXNET DW9947 Daphne AL Lat30.5975 Long:-87.9136 Elev:39
mn day max min precip DD52 CUMDD52 event
-- --- ----- ----- ------ ---- ------- -------
1 1 73.00 64.00 0.18 16.50 16.5 * START *
1 2 76.00 64.00 1.76 18.00 34.5
1 3 67.00 58.00 0.01 10.50 45.0
1 4 61.00 42.00 0.01 2.78 47.8
1 5 61.00 42.00 0.34 2.78 50.6
1 6 54.00 33.00 0.79 0.26 50.8
1 7 38.00 26.00 0.00 0.00 50.8
1 8 48.00 23.00 0.00 0.00 50.8
1 9 58.00 33.00 0.00 1.28 52.1
1 10 68.00 47.00 0.01 6.56 58.7
1 11 74.00 57.00 0.00 13.50 72.2
1 12 58.80 37.20 0.00 1.68 73.8 Hx Hn
1 13 63.40 38.90 0.02 3.48 77.3 Hx Hn
1 14 74.00 56.00 0.01 13.00 90.3
1 15 75.00 58.00 0.01 14.50 104.8
1 16 77.00 63.00 0.01 18.00 122.8
1 17 75.00 66.00 0.01 18.50 141.3
1 18 73.00 65.00 0.01 17.00 158.3
1 19 74.00 64.00 0.74 17.00 175.3
1 20 72.00 65.00 0.54 16.50 191.8
1 21 72.00 62.00 0.04 15.00 206.8
1 22 69.00 57.00 0.00 11.00 217.8
1 23 66.00 53.00 0.00 7.50 225.3
1 24 64.00 44.00 0.00 4.25 229.6
1 25 71.00 56.00 0.00 11.50 241.1
1 26 62.00 55.00 0.00 6.50 247.6
1 27 62.70 41.00 0.00 3.38 250.9 Hx Hn
1 28 62.60 39.60 0.00 3.22 254.2 Hx Hn
1 29 59.00 47.00 0.00 2.44 256.6
1 30 61.00 44.00 0.00 2.96 259.6
1 31 67.00 53.00 0.00 8.00 267.6
2 1 70.00 55.00 0.00 10.50 278.1
2 2 71.00 56.00 0.01 11.50 289.6
2 3 61.00 42.00 0.00 2.78 292.3
2 4 58.00 36.00 0.00 1.37 293.7
2 5 66.00 47.00 0.00 5.62 299.3
2 6 70.00 57.00 0.02 11.50 310.8
2 7 71.00 59.00 0.08 13.00 323.8
2 8 68.00 65.00 0.00 14.50 338.3
2 9 67.00 43.00 0.00 5.44 343.8
2 10 70.00 42.00 0.00 6.64 350.4
2 11 71.00 61.00 0.00 14.00 364.4
2 12 72.00 66.00 0.00 17.00 381.4
2 13 70.00 55.00 0.00 10.50 391.9
2 14 70.00 54.00 0.00 10.00 401.9
2 15 69.00 48.00 0.00 7.26 409.2
2 16 62.00 41.00 0.00 3.10 412.3
2 17 62.00 46.00 0.00 3.63 415.9
2 18 70.00 56.00 0.00 11.00 426.9
2 19 77.00 57.00 0.00 15.00 441.9
2 20 78.00 59.00 0.01 16.50 458.4 OW adult first oviposition
2 21 68.00 58.00 0.01 11.00 469.4
2 22 70.00 58.00 0.01 12.00 481.4
2 23 71.00 58.00 0.01 12.50 493.9
2 24 73.00 60.00 0.01 14.50 508.4
2 25 69.00 48.00 0.01 7.26 515.6
2 26 69.00 42.00 0.00 6.19 521.8
2 27 76.00 54.00 0.00 13.00 534.8
2 28 76.00 63.00 0.00 17.50 552.3
3 1 76.70 64.20 0.00 18.45 570.8 Vx Vn
3 2 66.00 51.50 0.00 6.79 577.6 Vn
3 3 70.00 45.00 0.00 7.12 584.7
3 4 64.00 45.00 0.00 4.38 589.1
3 5 70.00 55.00 0.00 10.50 599.6
3 6 74.00 60.00 0.00 15.00 614.6
3 7 74.00 62.00 0.00 16.00 630.6
3 8 71.00 55.00 0.01 11.00 641.6
3 9 72.00 57.00 0.01 12.50 654.1
3 10 77.00 60.00 0.00 16.50 670.6
3 11 71.00 54.00 0.01 10.50 681.1
3 12 59.00 47.00 0.01 2.44 683.5
3 13 58.00 49.00 0.01 2.26 685.8
3 14 53.00 40.00 0.00 0.12 685.9
3 15 54.00 36.00 0.00 0.29 686.2
3 16 58.00 37.00 0.00 1.40 687.6
3 17 65.00 47.00 0.00 5.15 692.7
3 18 70.00 56.00 0.00 11.00 703.7
3 19 77.00 57.00 0.00 15.00 718.7
3 20 73.00 59.00 0.00 14.00 732.7
3 21 76.00 65.00 0.00 18.50 751.2
3 22 80.00 65.00 0.00 20.50 771.7
3 23 79.00 61.00 0.00 18.00 789.7 OW adult peak OV
3 24 73.00 64.00 0.00 16.50 806.2
3 25 78.00 60.00 0.07 17.00 823.2
3 26 76.00 61.00 0.02 16.50 839.7
3 27 78.00 67.00 0.01 20.50 860.2
3 28 76.00 69.00 0.00 20.50 880.7
3 29 80.00 66.00 0.03 21.00 901.7
3 30 78.00 61.00 0.07 17.50 919.2
3 31 80.00 63.00 0.03 19.50 938.7
4 1 77.00 61.00 0.01 17.00 955.7
4 2 82.00 63.00 0.02 20.50 976.2
4 3 79.00 61.00 0.03 18.00 994.2
4 4 77.10 59.00 0.00 16.05 1010.3 Hx Hn
4 5 76.70 76.00 0.00 24.35 1034.6 Hx
4 6 69.00 56.20 0.00 10.60 1045.2 Vn
4 7 71.00 54.00 0.00 10.50 1055.7
4 8 70.00 50.00 0.00 8.27 1064.0
4 9 74.00 55.00 0.00 12.50 1076.5
4 10 78.00 56.00 0.00 15.00 1091.5
4 11 74.00 61.00 0.00 15.50 1107.0
4 12 76.00 63.00 0.00 17.50 1124.5
4 13 83.00 63.00 0.00 21.00 1145.5
4 14 82.00 64.00 0.00 21.00 1166.5
4 15 82.00 62.00 0.00 20.00 1186.5 F1 late instar nymphs
4 16 81.00 62.00 0.01 19.50 1206.0
4 17 77.00 65.00 0.00 19.00 1225.0
4 18 77.00 65.00 0.00 19.00 1244.0
4 19 85.00 64.00 0.01 22.50 1266.5
4 20 79.00 65.00 0.01 20.00 1286.5
4 21 77.00 66.00 0.00 19.50 1306.0
4 22 78.00 66.00 0.21 20.00 1326.0
4 23 70.00 59.00 0.08 12.50 1338.5
4 24 71.00 57.00 0.00 12.00 1350.5
4 25 75.00 58.00 0.00 14.50 1365.0
4 26 80.00 64.00 0.00 20.00 1385.0
4 27 80.00 67.00 0.00 21.50 1406.5
4 28 84.00 75.00 0.00 27.50 1434.0 First F1 adults
4 29 84.00 74.00 0.00 27.00 1461.0
4 30 82.00 68.00 0.25 23.00 1484.0
5 1 78.00 61.00 0.06 17.50 1501.5
5 2 79.00 61.00 0.00 18.00 1519.5
5 3 83.00 63.00 0.00 21.00 1540.5
5 4 74.00 56.00 0.00 13.00 1553.5
5 5 70.00 55.00 0.02 10.50 1564.0
5 6 72.00 54.00 0.00 11.00 1575.0
5 7 76.00 65.00 0.01 18.50 1593.5
5 8 82.00 65.00 0.00 21.50 1615.0
5 9 82.00 68.00 0.00 23.00 1638.0
5 10 81.00 69.00 0.00 23.00 1661.0
5 11 79.00 73.00 0.00 24.00 1685.0
5 12 78.00 66.00 0.00 20.00 1705.0
5 13 80.00 67.00 0.00 21.50 1726.5
5 14 83.00 64.00 0.00 21.50 1748.0
5 15 83.00 69.00 0.00 24.00 1772.0
5 16 82.00 70.00 0.00 24.00 1796.0
5 17 84.00 70.00 0.00 25.00 1821.0
5 18 87.00 74.00 0.00 28.50 1849.5
5 19 88.00 74.00 0.00 29.00 1878.5
5 20 85.00 69.00 0.00 25.00 1903.5
5 21 76.00 69.00 0.01 20.50 1924.0
5 22 79.00 67.00 0.01 21.00 1945.0
5 23 79.00 71.00 0.00 23.00 1968.0
5 24 76.00 69.00 0.00 20.50 1988.5
5 25 80.00 64.00 0.00 20.00 2008.5
5 26 78.00 67.00 0.00 20.50 2029.0
5 27 82.00 73.00 0.00 25.50 2054.5
5 28 82.00 77.00 0.00 27.50 2082.0
5 29 84.00 69.00 0.00 24.50 2106.5
5 30 79.00 70.00 0.01 22.50 2129.0
5 31 82.00 71.00 0.01 24.50 2153.5
6 1 83.00 71.00 0.02 25.00 2178.5
6 2 82.00 74.00 0.01 26.00 2204.5 F1 peak adults, also F2 young nymphs
6 3 81.00 72.00 0.01 24.50 2229.0
6 4 83.00 72.00 0.02 25.50 2254.5
6 5 83.00 75.00 0.02 27.00 2281.5
6 6 82.00 70.00 0.02 24.00 2305.5
6 7 85.00 70.00 0.04 25.50 2331.0
6 8 85.00 66.00 0.00 23.50 2354.5
6 9 83.00 68.00 0.00 23.50 2378.0
6 10 88.00 71.00 0.00 27.50 2405.5
6 11 87.00 72.00 0.00 27.50 2433.0
6 12 83.00 74.00 0.00 26.50 2459.5
6 13 80.00 73.00 0.00 24.50 2484.0
6 14 82.00 74.00 0.00 26.00 2510.0
6 15 83.00 71.00 0.00 25.00 2535.0
6 16 87.00 70.00 0.00 26.50 2561.5
6 17 81.00 69.00 0.00 23.00 2584.5 F2 late instar nymphs
6 18 85.00 74.00 0.00 27.50 2612.0
6 19 88.00 74.00 0.00 29.00 2641.0
6 20 75.00 71.00 0.00 21.00 2662.0
6 21 80.00 71.00 0.00 23.50 2685.5
6 22 85.00 78.00 0.00 29.50 2715.0
6 23 84.00 79.00 0.01 29.50 2744.5
6 24 86.00 77.00 0.00 29.50 2774.0
6 25 86.00 74.00 0.00 28.00 2802.0
6 26 87.00 69.00 0.00 26.00 2828.0
6 27 85.00 72.00 0.00 26.50 2854.5 First F2 adults
6 28 85.00 73.00 0.00 27.00 2881.5
6 29 82.00 73.00 0.02 25.50 2907.0
6 30 85.00 74.00 0.02 27.50 2934.5
Extended Seasonal Forecast: NOAA NMME 7-month 1910 D9947 PRISM_rev1_4km 2012-2021
threecornered alfalfa hopper model - OSU OIPMC model analysisLocation: 2017 D9947 DW9947 Daphne AL Extended Seasonal Forecast: NOAA NMME | Date | DDs | Event |
| 2-20-17 | 458 | OW adult first oviposition |
| 3-23-17 | 790 | OW adult peak OV |
| 4-15-17 | 1187 | F1 late instar nymphs |
| 4-28-17 | 1434 | First F1 adults |
| 6-2-17 | 2205 | F1 peak adults, also F2 young nymphs |
| 6-17-17 | 2585 | F2 late instar nymphs |
| 6-27-17 | 2855 | First F2 adults |
![degree-day graph of threecornered alfalfa hopper [legumes, grapes] OSU OIPMC model analysis](/cgi-bin/ddplotj.pl?1013370)
