Online Phenology Models and Degree-day Calculator
eggsearly instarimmatureadult
Lygus bug [alfalfa seed]
insect model of Ben Simko 2000


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: Lygus bug [alfalfa seed] Type: insect Model source/other links: Ben Simko 2000 Calculation method: single sine Lower threshold: 52 degrees Fahrenheit Setting upper threshold to: 130 F (default) Directions for starting/BIOFIX: calendar date No starting/BIOFIX date, set to: default date 1 1 No ending date, set to: default date 12 31 Model validation status: partly validated Region of known use: E. Oregon, SW Idaho ==============================EVENTS TABLE================================ 1. 275 DD after biofix peak 1st and 2nd instars nymphs ==============================MODEL OUTPUT================================ Weather station: 2017 UP228 UPR PARMA ID Lat43.7586 Long-116.8969 Elev:2248 mn day max min precip DD52 CUMDD52 event -- --- ----- ----- ------ ---- ------- ------- 1 1 18.00 5.00 0.00 0.00 0.0 * START * 1 2 21.00 5.00 0.00 0.00 0.0 1 3 23.00 12.00 0.00 0.00 0.0 1 4 27.00 9.00 0.00 0.00 0.0 1 5 19.00 -17.00 0.00 0.00 0.0 1 6 -4.00 -26.00 0.00 0.00 0.0 1 7 7.00 -26.00 0.00 0.00 0.0 1 8 70.00 9.00 0.00 4.29 4.3 1 9 88.00 28.00 0.00 12.74 17.0 1 10 46.00 33.20 0.00 0.00 17.0 Vn 1 11 41.00 -2.00 0.00 0.00 17.0 Vx 1 12 23.00 3.00 0.00 0.00 17.0 1 13 14.00 -8.00 0.00 0.00 17.0 1 14 16.00 10.00 0.00 0.00 17.0 1 15 10.00 -4.00 0.00 0.00 17.0 1 16 3.00 -13.00 0.00 0.00 17.0 1 17 3.00 -11.00 0.00 0.00 17.0 1 18 30.00 -11.00 0.00 0.00 17.0 *Warning: using yesterdays min* 1 19 52.00 23.00 0.00 0.00 17.0 1 20 39.00 25.00 0.00 0.00 17.0 1 21 34.00 30.00 0.00 0.00 17.0 1 22 36.00 21.00 0.00 0.00 17.0 1 23 36.00 19.00 0.00 0.00 17.0 1 24 30.00 16.00 0.00 0.00 17.0 1 25 27.00 14.00 0.00 0.00 17.0 1 26 25.00 7.00 0.00 0.00 17.0 1 27 19.00 9.00 0.00 0.00 17.0 1 28 19.00 16.00 0.00 0.00 17.0 1 29 21.00 7.00 0.00 0.00 17.0 1 30 18.00 1.00 0.00 0.00 17.0 1 31 19.00 12.00 0.00 0.00 17.0 2 1 27.00 18.00 0.00 0.00 17.0 2 2 25.00 16.00 0.00 0.00 17.0 2 3 30.00 23.00 0.00 0.00 17.0 2 4 37.00 19.00 0.00 0.00 17.0 2 5 41.00 32.00 0.00 0.00 17.0 2 6 43.00 34.00 0.00 0.00 17.0 2 7 37.00 3.00 0.00 0.00 17.0 2 8 34.00 3.00 0.00 0.00 17.0 *Warning: using yesterdays min* 2 9 39.00 -44.00 0.00 0.00 17.0 2 10 41.00 32.00 0.00 0.00 17.0 2 11 37.00 21.00 0.00 0.00 17.0 2 12 28.00 10.00 0.00 0.00 17.0 2 13 28.00 10.00 0.00 0.00 17.0 2 14 27.00 7.00 0.00 0.00 17.0 2 15 30.00 12.00 0.00 0.00 17.0 2 16 50.00 27.00 0.00 0.00 17.0 2 17 39.00 30.00 0.00 0.00 17.0 2 18 45.00 19.00 0.00 0.00 17.0 2 19 39.00 27.00 0.00 0.00 17.0 2 20 52.00 32.00 0.00 0.00 17.0 2 21 52.00 36.00 0.00 0.00 17.0 2 22 36.00 28.00 0.00 0.00 17.0 2 23 32.00 27.00 0.00 0.00 17.0 2 24 34.00 19.00 0.00 0.00 17.0 2 25 39.00 16.00 0.00 0.00 17.0 2 26 36.00 23.00 0.00 0.00 17.0 2 27 39.00 23.00 0.00 0.00 17.0 2 28 39.00 28.00 0.00 0.00 17.0 3 1 46.00 25.00 0.00 0.00 17.0 3 2 45.00 21.00 0.00 0.00 17.0 3 3 50.00 25.00 0.00 0.00 17.0 3 4 50.00 36.00 0.00 0.00 17.0 3 5 45.00 28.00 0.00 0.00 17.0 3 6 39.00 33.20 0.00 0.00 17.0 Vn 3 7 43.00 27.00 0.00 0.00 17.0 3 8 59.00 36.00 0.00 1.69 18.7 3 9 57.00 36.00 0.00 1.06 19.8 *Warning: using yesterdays min* 3 10 61.00 36.00 0.00 2.39 22.2 3 11 57.00 27.00 0.00 0.88 23.1 3 12 59.00 32.00 0.00 1.56 24.6 3 13 63.00 30.00 0.00 2.80 27.4 3 14 68.00 37.00 0.00 5.19 32.6 3 15 64.00 34.00 0.00 3.37 36.0 3 16 57.00 41.00 0.00 1.23 37.2 3 17 68.00 39.00 0.00 5.39 42.6 3 18 61.00 41.00 0.00 2.70 45.3 3 19 55.00 41.00 0.00 0.60 45.9 3 20 63.00 43.00 0.00 3.70 49.6 3 21 57.00 43.00 0.00 1.32 50.9 *Warning: using yesterdays min* 3 22 59.00 37.00 0.00 1.74 52.6 3 23 54.00 32.00 0.00 0.26 52.9 3 24 50.00 36.00 0.00 0.00 52.9 3 25 54.00 30.00 0.00 0.25 53.1 3 26 52.00 30.00 0.00 0.00 53.1 3 27 54.00 36.00 0.00 0.29 53.4 3 28 54.00 28.00 0.00 0.24 53.7 3 29 57.00 34.00 0.00 1.01 54.7 3 30 75.00 34.00 0.00 7.82 62.5 *Warning: using yesterdays min* 3 31 57.00 36.00 0.00 1.06 63.6 4 1 61.00 34.00 0.00 2.29 65.8 4 2 57.00 36.00 0.00 1.06 66.9 4 3 48.00 28.00 0.00 0.00 66.9 4 4 61.80 32.40 0.00 2.49 69.4 Hx Hn 4 5 68.00 44.70 0.00 6.14 75.5 Vn 4 6 59.00 46.00 0.00 2.33 77.9 4 7 63.00 39.00 0.00 3.33 81.2 4 8 45.00 32.00 0.00 0.00 81.2 4 9 52.00 27.00 0.00 0.00 81.2 4 10 57.00 37.00 0.00 1.09 82.3 4 11 54.00 28.00 0.00 0.24 82.5 4 12 68.00 37.00 0.00 5.19 87.7 4 13 52.00 37.00 0.00 0.00 87.7 4 14 45.00 30.00 0.00 0.00 87.7 4 15 52.00 25.00 0.00 0.00 87.7 4 16 66.00 28.00 0.00 3.76 91.5 4 17 63.00 43.00 0.00 3.70 95.2 4 18 59.00 43.00 0.00 2.07 97.2 4 19 63.00 34.00 0.00 3.00 100.2 4 20 55.00 39.00 0.00 0.56 100.8 4 21 63.00 36.80 0.00 3.17 104.0 Vn 4 22 66.00 34.00 0.00 4.13 108.1 4 23 64.00 43.00 0.00 4.13 112.2 4 24 59.00 39.00 0.00 1.83 114.1 4 25 57.00 34.00 0.00 1.01 115.1 4 26 52.00 39.00 0.00 0.00 115.1 4 27 52.00 40.40 0.00 0.00 115.1 Vn 4 28 54.00 41.40 0.00 0.34 115.4 Vn 4 29 61.00 41.40 0.00 2.73 118.2 *Warning: using yesterdays min* 4 30 63.00 39.00 0.00 3.33 121.5 5 1 59.00 34.00 0.00 1.62 123.1 5 2 63.00 34.00 0.00 3.00 126.1 *Warning: using yesterdays min* 5 3 70.00 34.00 0.00 5.73 131.8 *Warning: using yesterdays min* 5 4 82.00 34.00 0.00 10.88 142.7 *Warning: using yesterdays min* 5 5 77.00 57.00 0.00 15.00 157.7 5 6 52.00 45.00 0.00 0.00 157.7 5 7 61.00 37.00 0.00 2.44 160.2 5 8 66.00 36.00 0.00 4.29 164.4 5 9 72.00 46.80 0.00 8.42 172.9 Vn 5 10 79.00 41.00 0.00 10.59 183.5 5 11 81.00 46.00 0.00 12.57 196.0 5 12 46.00 41.20 0.00 0.00 196.0 Pn 5 13 54.00 28.00 0.00 0.24 196.3 5 14 59.00 30.00 0.00 1.50 197.8 5 15 63.00 34.00 0.00 3.00 200.8 5 16 48.00 36.00 0.00 0.00 200.8 5 17 48.00 36.00 0.00 0.00 200.8 *Warning: using yesterdays min* 5 18 68.00 36.00 0.00 5.09 205.9 *Warning: using yesterdays min* 5 19 70.00 43.00 0.00 6.79 212.6 5 20 72.00 45.00 0.00 8.06 220.7 5 21 75.00 45.00 0.00 9.47 230.2 *Warning: using yesterdays min* 5 22 81.00 46.00 0.00 12.57 242.7 5 23 84.00 46.00 0.00 14.03 256.8 5 24 70.00 48.00 0.00 7.74 264.5 5 25 66.00 39.00 0.00 4.55 269.1 5 26 72.00 43.00 0.00 7.70 276.8 peak 1st and 2nd instars nymphs 5 27 77.00 41.00 0.00 9.67 286.4 5 28 82.00 46.60 0.00 13.21 299.6 Pn 5 29 86.00 46.00 0.00 15.00 314.6 5 30 91.00 50.00 0.00 18.69 333.3 5 31 81.00 59.00 0.00 18.00 351.3 6 1 68.00 54.00 0.00 9.00 360.3 6 2 81.00 48.00 0.00 13.10 373.4 6 3 82.00 52.00 0.00 15.00 388.4 6 4 81.00 54.00 0.00 15.50 403.9 6 5 72.00 45.00 0.00 8.06 412.0 6 6 84.00 43.00 0.00 13.33 425.3 6 7 88.00 50.00 0.00 17.20 442.5 6 8 72.00 52.00 0.00 10.00 452.5 6 9 68.00 46.00 0.00 6.37 458.9 6 10 63.00 45.00 0.00 3.94 462.8 6 11 66.00 39.00 0.00 4.55 467.4 6 12 59.00 46.00 0.00 2.33 469.7 6 13 68.00 45.00 0.00 6.19 475.9 6 14 73.00 43.00 0.00 8.16 484.0 6 15 73.00 48.00 0.00 9.19 493.2 6 16 72.00 57.00 0.00 12.50 505.7 6 17 73.00 50.00 0.00 9.75 515.5 6 18 81.00 50.00 0.00 13.72 529.2 6 19 91.00 55.00 0.00 21.00 550.2 6 20 91.00 63.00 0.00 25.00 575.2 6 21 81.00 57.00 0.00 17.00 592.2 6 22 77.00 50.00 0.00 11.73 603.9 6 23 82.00 46.00 0.00 13.06 617.0 6 24 90.00 52.00 0.00 19.00 636.0 6 25 93.00 50.00 0.00 19.68 655.7 6 26 90.00 55.00 0.00 20.50 676.2 6 27 88.00 57.00 0.00 20.50 696.7 6 28 82.00 59.00 0.00 18.50 715.2 6 29 81.00 54.00 0.00 15.50 730.7 6 30 86.00 48.00 0.00 15.56 746.2 7 1 91.00 50.00 0.00 18.69 764.9 7 2 93.00 61.00 0.00 25.00 789.9 7 3 91.00 59.00 0.00 23.00 812.9 7 4 93.00 54.00 0.00 21.50 834.4 7 5 97.00 59.00 0.00 26.00 860.4 7 6 100.00 57.00 0.00 26.50 886.9 7 7 100.00 59.00 0.00 27.50 914.4 7 8 102.00 61.00 0.00 29.50 943.9 7 9 102.00 63.00 0.00 30.50 974.4 7 10 93.00 63.00 0.00 26.00 1000.4 7 11 84.00 57.00 0.00 18.50 1018.9 7 12 97.00 52.00 0.00 22.50 1041.4 7 13 95.00 59.00 0.00 25.00 1066.4 7 14 100.00 59.00 0.00 27.50 1093.9 7 15 95.00 61.00 0.00 26.00 1119.9 7 16 88.00 61.00 0.00 22.50 1142.4 7 17 88.00 54.00 0.00 19.00 1161.4 7 18 91.00 55.00 0.00 21.00 1182.4 7 19 93.00 59.00 0.00 24.00 1206.4 7 20 90.00 55.00 0.00 20.50 1226.9 7 21 90.00 55.00 0.00 20.50 1247.4 7 22 93.00 55.00 0.00 22.00 1269.4 7 23 95.00 55.00 0.00 23.00 1292.4 7 24 93.00 63.00 0.00 26.00 1318.4 7 25 91.00 66.00 0.00 26.50 1344.9 7 26 88.00 64.00 0.00 24.00 1368.9 7 27 91.00 59.00 0.00 23.00 1391.9 7 28 93.00 57.00 0.00 23.00 1414.9 7 29 95.00 55.00 0.00 23.00 1437.9 7 30 97.00 59.00 0.00 26.00 1463.9 7 31 99.00 57.00 0.00 26.00 1489.9 8 1 95.00 59.00 0.00 25.00 1514.9 8 2 99.00 55.00 0.00 25.00 1539.9 8 3 99.00 57.00 0.00 26.00 1565.9 8 4 95.00 54.00 0.00 22.50 1588.4 8 5 91.00 57.00 0.00 22.00 1610.4 8 6 86.00 59.00 0.00 20.50 1630.9 8 7 86.00 61.00 0.00 21.50 1652.4 8 8 93.00 54.00 0.00 21.50 1673.9 8 9 93.00 57.00 0.00 23.00 1696.9 8 10 91.00 55.00 0.00 21.00 1717.9 8 11 95.00 55.00 0.00 23.00 1740.9 8 12 91.00 57.00 0.00 22.00 1762.9 8 13 77.00 57.00 0.00 15.00 1777.9 8 14 77.00 54.00 0.00 13.50 1791.4 8 15 84.00 46.00 0.00 14.03 1805.4 8 16 86.00 54.00 0.00 18.00 1823.4 8 17 86.00 54.00 0.00 18.00 1841.4 8 18 90.00 50.00 0.00 18.19 1859.6 8 19 84.00 54.00 0.00 17.00 1876.6 8 20 82.00 52.00 0.00 15.00 1891.6 8 21 84.00 52.00 0.00 16.00 1907.6 8 22 91.00 48.00 0.00 18.02 1925.7 8 23 86.00 54.00 0.00 18.00 1943.7 8 24 92.80 59.00 0.00 23.90 1967.6 Px 8 25 86.00 55.00 0.00 18.50 1986.1 8 26 93.00 52.00 0.00 20.50 2006.6 8 27 95.00 50.00 0.00 20.68 2027.2 8 28 84.00 55.00 0.00 17.50 2044.7 8 29 99.30 59.00 0.00 27.15 2071.9 Px 8 30 91.00 63.00 0.00 25.00 2096.9 8 31 86.00 55.00 0.00 18.50 2115.4 9 1 95.00 52.00 0.00 21.50 2136.9 9 2 93.00 50.00 0.00 19.68 2156.6 9 3 95.00 52.00 0.00 21.50 2178.1 9 4 93.00 54.00 0.00 21.50 2199.6 9 5 88.00 54.00 0.00 19.00 2218.6 9 6 85.20 56.40 0.00 18.80 2237.4 Px Pn 9 7 87.40 32.00 0.00 13.01 2250.4 Px 9 8 93.00 23.00 0.00 14.30 2264.7 9 9 90.00 3.00 0.00 11.21 2275.9 9 10 82.00 7.00 0.00 8.43 2284.3 9 11 73.00 -4.00 0.00 4.79 2289.1 9 12 75.00 3.00 0.00 5.71 2294.8 9 13 79.00 16.00 0.00 7.88 2302.7 9 14 75.20 48.00 0.00 10.26 2313.0 Px 9 15 71.40 47.90 0.00 8.39 2321.4 Px Pn 9 16 68.50 39.20 0.00 5.63 2327.0 Px Pn 9 17 77.60 45.20 0.00 10.75 2337.7 Px Pn 9 18 66.80 50.10 0.00 6.72 2344.5 Px Pn 9 19 63.60 45.80 0.00 4.31 2348.8 Px Pn 9 20 63.80 48.90 0.00 4.96 2353.7 Px Pn 9 21 59.10 43.00 0.00 2.11 2355.8 Px Pn 9 22 57.80 27.00 0.00 1.09 2356.9 Px 9 23 63.50 37.50 0.00 3.42 2360.3 Px Pn 9 24 68.40 40.30 0.00 5.71 2366.1 Px Pn 9 25 71.00 40.30 0.00 6.85 2372.9 *Warning: using yesterdays min*Px 9 26 74.60 45.40 0.00 9.36 2382.3 Px Pn 9 27 77.80 43.00 0.00 10.40 2392.7 Px Pn 9 28 77.90 42.90 0.00 10.43 2403.1 Px Pn 9 29 80.00 42.20 0.00 11.28 2414.4 Px Pn 9 30 69.00 48.60 0.00 7.40 2421.8 Px Pn 10 1 63.10 43.30 0.00 3.77 2425.5 Px Pn 10 2 62.00 37.20 0.00 2.82 2428.4 Px Pn 10 3 61.80 34.70 0.00 2.60 2431.0 Px Pn 10 4 59.30 40.70 0.00 2.03 2433.0 Px Pn 10 5 63.60 37.90 0.00 3.48 2436.5 Px Pn 10 6 71.70 35.30 0.00 6.56 2443.0 Px Pn 10 7 71.50 40.50 0.00 7.10 2450.1 Px Pn 10 8 59.80 40.50 0.00 2.20 2452.3 Px Pn 10 9 60.50 31.60 0.00 2.02 2454.4 Px Pn 10 10 68.40 37.30 0.00 5.38 2459.7 Px Pn 10 11 61.10 43.90 0.00 2.99 2462.7 Px Pn 10 12 57.00 30.50 0.00 0.94 2463.7 Px Pn 10 13 52.20 35.90 0.00 0.01 2463.7 Px Pn 10 14 54.40 27.70 0.00 0.31 2464.0 Px Pn 10 15 59.20 26.10 0.00 1.46 2465.5 Px Pn 10 16 62.20 28.00 0.00 2.44 2467.9 Px Pn 10 17 63.00 30.50 0.00 2.82 2470.7 Px Pn 10 18 71.60 32.00 0.00 6.20 2476.9 Px Pn 10 19 76.70 34.00 0.00 8.55 2485.5 Px Pn 10 20 66.30 39.10 0.00 4.68 2490.2 Px Pn 10 21 49.00 32.10 0.00 0.00 2490.2 Px Pn 10 22 66.40 46.30 0.00 5.68 2495.8 Px Pn 10 23 61.30 38.80 0.00 2.66 2498.5 Px Pn 10 24 62.80 33.60 0.00 2.91 2501.4 Px Pn 10 25 64.00 30.80 0.00 3.19 2504.6 Pn 10 26 69.50 39.50 0.00 6.09 2510.7 Px Pn 10 27 67.30 36.90 0.00 4.89 2515.6 Px Pn 10 28 65.70 35.90 0.00 4.16 2519.7 Px Pn 10 29 68.00 34.80 0.00 4.99 2524.7 Pn 10 30 57.70 40.70 0.00 1.45 2526.2 Px Pn 10 31 59.40 31.10 0.00 1.65 2527.8 Px Pn 11 1 67.70 39.00 0.00 5.26 2533.1 Px 11 2 51.10 43.90 0.00 0.00 2533.1 Px Pn 11 3 47.50 39.60 0.00 0.00 2533.1 Px Pn 11 4 47.20 32.50 0.00 0.00 2533.1 Px Pn 11 5 45.00 32.20 0.00 0.00 2533.1 Px Pn 11 6 42.60 34.10 0.00 0.00 2533.1 Px Pn 11 7 43.10 20.30 0.00 0.00 2533.1 Px Pn 11 8 45.40 30.60 0.00 0.00 2533.1 Px Pn 11 9 51.80 36.60 0.00 0.00 2533.1 Px Pn 11 10 46.30 36.40 0.00 0.00 2533.1 Px Pn 11 11 53.20 35.70 0.00 0.13 2533.2 Px Pn 11 12 49.40 32.80 0.00 0.00 2533.2 Px Pn 11 13 61.40 29.50 0.00 2.24 2535.5 Px Pn 11 14 53.60 36.70 0.00 0.21 2535.7 Px Pn 11 15 48.60 32.70 0.00 0.00 2535.7 Px Pn 11 16 51.30 42.30 0.00 0.00 2535.7 Px Pn 11 17 48.70 30.90 0.00 0.00 2535.7 Px Pn 11 18 48.40 25.30 0.00 0.00 2535.7 Px Pn 11 19 46.50 26.60 0.00 0.00 2535.7 Px Pn 11 20 50.40 35.50 0.00 0.00 2535.7 Px Pn 11 21 52.20 42.80 0.00 0.01 2535.7 Px Pn 11 22 56.10 46.60 0.00 1.20 2536.9 Px Pn 11 23 54.10 51.70 0.00 0.95 2537.8 Px Pn 11 24 56.50 35.70 0.00 0.91 2538.7 Px Pn 11 25 45.20 31.90 0.00 0.00 2538.7 Px Pn 11 26 55.40 36.20 0.00 0.62 2539.4 Px Pn 11 27 52.50 32.90 0.00 0.03 2539.4 Px Pn 11 28 48.00 24.20 0.00 0.00 2539.4 Px Pn 11 29 43.30 27.80 0.00 0.00 2539.4 Px Pn 11 30 33.90 24.10 0.00 0.00 2539.4 Px Pn 12 1 41.10 28.10 0.00 0.00 2539.4 Px Pn 12 2 38.80 27.50 0.00 0.00 2539.4 Px Pn 12 3 43.70 33.00 0.00 0.00 2539.4 Px Pn 12 4 41.60 28.50 0.00 0.00 2539.4 Px Pn 12 5 39.70 22.60 0.00 0.00 2539.4 Px Pn 12 6 38.30 20.00 0.00 0.00 2539.4 Px Pn 12 7 37.50 18.80 0.00 0.00 2539.4 Px Pn 12 8 28.80 19.10 0.00 0.00 2539.4 Px Pn 12 9 33.00 29.40 0.00 0.00 2539.4 Vx Vn 12 10 29.30 27.40 0.00 0.00 2539.4 Px Pn 12 11 28.10 26.30 0.00 0.00 2539.4 Px Pn 12 12 27.10 23.70 0.00 0.00 2539.4 Px Pn 12 13 28.70 19.50 0.00 0.00 2539.4 Px Pn 12 14 28.60 20.20 0.00 0.00 2539.4 Px Pn
DD accumulation on 12-14-17: 2539QA 66% ok - Suspect - 34% of data estimated  Consider using a different Station!  
  
This year is about  versus  QA
 DDs exceed full year 2016 ok
 75 days behind 2015 ok
 84 days behind 30-yr normal ok
Forecast using:  Fox - IPPC forecast for UP228 data
 12 15  46.80 30.70  0.14   0.00   2539.4  0.144_0.00%_precip.    
 12 16  43.00 30.80  0.00   0.00   2539.4  0.00_0.00%_precip.    
 12 17  40.70 26.80  0.00   0.00   2539.4  0.00_0.00%_precip.    
 12 18  46.10 27.80  0.00   0.00   2539.4  0.00_0.00%_precip.    
Forecast using: 10 yr Hist Avg UP228 2006-2015
 12 19  37.90 22.60  0.04   0.00   2539.4  *hist_fcst*    
 12 20  38.30 22.30  0.09   0.00   2539.4  *hist_fcst*    
 12 21  38.00 23.00  0.07   0.00   2539.4  *hist_fcst*    
 12 22  39.20 24.40  0.10   0.00   2539.4  *hist_fcst*    
 12 23  38.60 21.80  0.03   0.00   2539.4  *hist_fcst*    
 12 24  36.70 20.80  0.02   0.00   2539.4  *hist_fcst*    
 12 25  36.70 18.60  0.07   0.00   2539.4  *hist_fcst*    
 12 26  34.30 19.40  0.01   0.00   2539.4  *hist_fcst*    
 12 27  33.90 19.00  0.04   0.00   2539.4  *hist_fcst*    
 12 28  33.80 21.00  0.05   0.00   2539.4  *hist_fcst*    
 12 29  36.20 22.60  0.08   0.00   2539.4  *hist_fcst*    
 12 30  36.90 22.20  0.02   0.00   2539.4  *hist_fcst*    
 12 31  34.30 18.30  0.01   0.00   2539.4  *hist_fcst*    
Lygus bug model - Ben Simko 2000
Location: 2017 UP228 PARMA ID
DD accumulation on 12-14-17: 2539QA 66% ok - Suspect - 34% of data estimated  - check weather data/Consider using a different Station! 
  
This year is about  versus  QA
 DDs exceed full year 2016 ok
 75 days behind 2015 ok
 84 days behind 30-yr normal ok
DateDDsEvent
 5-26-17 277peak 1st and 2nd instars nymphs
degree-day graph of Lygus bug [alfalfa seed] Ben Simko 2000