Online Phenology Models and Degree-day Calculator
immaturedamagepupaadult
orange tortrix (mild winter) [small fruit]
insect model of Knight (1988)


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: orange tortrix (mild winter) [small fruit] Type: insect Model source/other links: Knight (1988) Calculation method: single sine Lower threshold: 41 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: Pacific Northwest ==============================EVENTS TABLE================================ 1. 850 DDs after biofix: peak pheromone trap catch 2. 950 DDs after biofix: peak female adult emergence 3. 1000 DDs after biofix: peak egg laying 4. 1270 DDs after biofix: peak egg hatch 5. 2070 DDs after biofix: peak in density large larvae ==============================MODEL OUTPUT================================ Weather station: 2018 KKLS METAR Kelso-Longview Airport WA Lat46.1167 Long:-122.9000 Elev:20 mn day max min precip DD41 CUMDD41 event -- --- ----- ----- ------ ---- ------- ------- 1 1 43.00 30.00 0.00 0.34 0.3 * START * 1 2 44.60 30.00 0.00 0.78 1.1 1 3 46.90 33.10 0.00 1.72 2.8 1 4 51.80 33.80 0.17 3.82 6.7 1 5 48.00 39.20 0.20 2.95 9.6 1 6 48.20 39.00 0.06 3.00 12.6 1 7 45.00 41.00 0.79 2.00 14.6 1 8 44.60 42.10 0.40 2.35 17.0 1 9 48.20 39.00 0.06 3.00 20.0 1 10 46.90 37.40 0.06 2.13 22.1 1 11 55.90 46.00 0.88 9.95 32.1 1 12 52.00 48.00 0.04 9.00 41.1 1 13 60.80 44.10 0.00 11.45 52.5 1 14 63.00 44.10 0.00 12.55 65.1 1 15 59.00 39.00 0.03 8.27 73.3 1 16 55.40 41.00 0.17 7.20 80.5 1 17 53.60 44.10 0.52 7.85 88.4 1 18 48.90 42.80 0.24 4.85 93.2 1 19 46.90 42.80 0.13 3.85 97.1 1 20 48.90 42.10 0.02 4.50 101.6 1 21 48.90 42.80 0.36 4.85 106.4 1 22 48.90 42.10 0.26 4.50 110.9 1 23 50.00 42.10 0.92 5.05 116.0 1 24 51.80 41.00 0.32 5.40 121.4 1 25 46.90 37.40 0.18 2.13 123.5 1 26 45.00 39.00 0.36 1.51 125.0 1 27 51.80 41.00 0.04 5.40 130.4 1 28 57.90 46.00 0.01 10.95 141.4 1 29 52.00 43.00 0.77 6.50 147.9 1 30 50.00 37.00 0.26 3.47 151.3 1 31 45.00 37.00 0.01 1.27 152.6 2 1 46.90 42.10 0.43 3.50 156.1 2 2 54.00 46.40 0.15 9.20 165.3 2 3 52.00 48.00 0.05 9.00 174.3 2 4 55.90 48.20 0.16 11.05 185.4 2 5 54.00 46.00 0.03 9.00 194.4 2 6 51.80 44.60 0.27 7.20 201.6 2 7 57.90 42.10 0.00 9.00 210.6 2 8 50.00 42.80 0.04 5.40 216.0 2 9 48.20 37.40 0.01 2.72 218.7 2 10 48.90 35.10 0.00 2.72 221.4 2 11 46.90 33.10 0.00 1.72 223.1 2 12 48.20 26.10 0.00 1.81 224.9 2 13 50.00 24.10 0.41 2.34 227.3 2 14 46.40 33.80 0.06 1.58 228.8 2 15 46.40 33.80 0.10 1.58 230.4 2 16 46.90 41.00 0.25 2.95 233.4 2 17 53.10 39.90 0.66 5.64 239.0 2 18 39.20 28.90 0.47 0.00 239.0 2 19 39.20 28.40 0.00 0.00 239.0 2 20 36.00 28.40 0.30 0.00 239.0 2 21 36.00 19.00 0.08 0.00 239.0 2 22 37.90 23.00 0.02 0.00 239.0 2 23 36.00 19.00 0.14 0.00 239.0 2 24 48.90 33.10 0.21 2.51 241.5 2 25 42.80 33.10 0.56 0.34 241.9 2 26 44.60 33.10 0.05 0.88 242.7 2 27 43.00 35.60 0.04 0.45 243.2 2 28 46.40 37.40 0.43 1.91 245.1 3 1 48.20 39.00 0.07 3.00 248.1 3 2 48.90 37.00 0.01 2.97 251.1 3 3 53.60 30.00 0.00 4.16 255.2 3 4 48.90 28.00 0.08 2.15 257.4 3 5 50.00 32.00 0.00 2.86 260.3 3 6 57.20 26.60 0.02 5.33 265.6 3 7 54.00 30.20 0.00 4.35 269.9 3 8 54.00 37.40 0.48 5.43 275.4 3 9 54.00 34.00 0.01 4.83 280.2 3 10 64.90 30.00 0.00 9.16 289.4 3 11 69.80 35.60 0.00 12.63 302.0 3 12 72.00 33.80 0.00 13.25 315.2 3 13 55.40 44.10 0.51 8.75 324.0 3 14 51.80 37.40 0.06 4.38 328.4 3 15 55.40 30.00 0.00 4.93 333.3 3 16 52.00 37.40 0.24 4.48 337.8 3 17 52.00 37.00 0.01 4.40 342.2 3 18 52.00 37.40 0.14 4.48 346.7 3 19 57.90 37.00 0.00 7.21 353.9 3 20 61.00 28.00 0.00 7.12 361.0 3 21 53.60 30.20 0.56 4.19 365.2 3 22 50.00 39.00 0.55 3.87 369.0 3 23 46.90 37.00 3.17 2.08 371.1 3 24 41.00 35.60 0.22 0.00 371.1 3 25 51.80 37.00 0.03 4.31 375.4 3 26 48.20 37.40 0.01 2.72 378.1 3 27 51.80 44.60 0.28 7.20 385.3 3 28 54.00 41.00 0.00 6.50 391.8 3 29 60.80 39.00 0.00 9.16 401.0 3 30 55.90 42.80 0.00 8.35 409.4 3 31 63.00 42.80 0.00 11.90 421.3 4 1 46.40 37.40 0.28 1.91 423.2 4 2 54.00 34.00 0.09 4.83 428.0 4 3 51.80 28.40 0.05 3.29 431.3 4 4 55.40 42.80 0.08 8.10 439.4 4 5 54.00 46.40 0.23 9.20 448.6 4 6 68.00 51.80 0.04 18.90 467.5 4 7 64.00 46.40 0.98 14.20 481.7 4 8 53.60 46.40 0.21 9.00 490.7 4 9 66.90 39.00 0.01 12.18 502.9 4 10 62.60 48.00 0.16 14.30 517.2 4 11 55.90 42.80 0.44 8.35 525.5 4 12 54.00 41.00 0.19 6.50 532.0 4 13 53.60 44.60 0.38 8.10 540.1 4 14 57.20 48.20 0.36 11.70 551.8 4 15 50.00 44.10 0.41 6.05 557.9 4 16 48.90 42.10 0.25 4.50 562.4 4 17 54.00 42.10 0.03 7.05 569.4 4 18 60.80 39.00 0.04 9.16 578.6 4 19 66.20 35.10 0.00 10.76 589.3 4 20 63.00 37.40 0.00 9.78 599.1 4 21 60.80 41.00 0.01 9.90 609.0 4 22 63.00 37.40 0.00 9.78 618.8 4 23 78.80 35.60 0.00 17.02 635.8 4 24 82.90 39.00 0.00 20.13 655.9 4 25 84.20 46.40 0.00 24.30 680.2 4 26 73.00 44.60 0.00 17.80 698.0 4 27 55.90 48.90 4.62 11.40 709.4 4 28 59.00 46.00 0.04 11.50 720.9 4 29 57.90 44.10 0.09 10.00 730.9 4 30 59.00 46.00 0.12 11.50 742.4 5 1 60.80 48.20 0.00 13.50 755.9 5 2 73.40 46.00 0.00 18.70 774.6 5 3 71.60 46.00 0.00 17.80 792.4 5 4 66.90 51.10 0.00 18.00 810.4 5 5 71.60 50.00 0.00 19.80 830.2 5 6 68.00 50.00 0.00 18.00 848.2 5 7 75.20 53.60 0.00 23.40 871.6 peak pheromone trap catch 5 8 77.00 48.20 0.00 21.60 893.2 5 9 66.20 53.10 0.03 18.65 911.9 5 10 62.60 48.90 0.11 14.75 926.6 5 11 68.00 42.10 0.00 14.05 940.7 5 12 80.60 51.10 0.00 24.85 965.5 peak female adult emergence 5 13 89.60 48.00 0.00 27.80 993.3 5 14 81.00 55.00 0.00 27.00 1020.3 peak egg laying 5 15 68.00 55.00 0.00 20.50 1040.8 5 16 64.90 53.60 0.00 18.25 1059.1 5 17 63.00 52.00 0.01 16.50 1075.6 5 18 66.20 51.10 0.00 17.65 1093.2 5 19 70.00 53.60 0.00 20.80 1114.0 5 20 68.00 51.10 0.00 18.55 1132.6 5 21 71.60 46.40 0.00 18.00 1150.6 5 22 82.40 46.40 0.00 23.40 1174.0 5 23 75.20 54.00 0.00 23.60 1197.6 5 24 72.00 54.00 0.00 22.00 1219.6 5 25 69.80 51.10 0.00 19.45 1239.0 5 26 64.40 46.00 0.00 14.20 1253.2 5 27 75.20 44.60 0.00 18.90 1272.1 peak egg hatch 5 28 68.00 46.40 0.00 16.20 1288.3 5 29 64.90 44.60 0.00 13.75 1302.1 5 30 68.00 39.00 0.00 12.72 1314.8 5 31 66.20 44.60 0.00 14.40 1329.2 6 1 69.80 44.10 0.00 15.95 1345.2 6 2 80.60 48.00 0.00 23.30 1368.5 6 3 66.20 51.80 0.00 18.00 1386.5 6 4 66.90 46.00 0.00 15.45 1401.9 6 5 71.60 42.10 0.00 15.85 1417.8 6 6 75.20 44.10 0.00 18.65 1436.4 6 7 66.90 55.40 0.00 20.15 1456.6 6 8 63.00 53.10 0.31 17.05 1473.6 6 9 62.60 48.90 0.04 14.75 1488.4 6 10 60.80 48.20 0.37 13.50 1501.9 6 11 70.00 48.20 0.00 18.10 1520.0 6 12 75.20 42.80 0.00 18.00 1538.0 6 13 66.90 53.10 0.10 19.00 1557.0 6 14 64.40 51.80 0.01 17.10 1574.1 6 15 70.00 51.10 0.00 19.55 1593.6 6 16 78.80 55.00 0.00 25.90 1619.5 6 17 90.00 53.10 0.00 30.55 1650.1 6 18 80.60 55.00 0.00 26.80 1676.9 6 19 86.00 57.20 0.00 30.60 1707.5 6 20 82.90 59.00 0.00 29.95 1737.4 6 21 68.00 57.20 0.00 21.60 1759.0 6 22 72.00 57.20 0.00 23.60 1782.6 6 23 75.20 57.20 0.01 25.20 1807.8 6 24 86.00 51.80 0.11 27.90 1835.7 6 25 64.90 53.10 0.19 18.00 1853.7 6 26 73.50 46.40 0.00 18.95 1872.7 Px 6 27 72.20 49.40 0.00 19.80 1892.5 Px Pn 6 28 70.40 51.80 0.00 20.10 1912.6 Px Pn 6 29 75.90 62.10 0.00 28.00 1940.6 6 30 72.00 59.00 0.01 24.50 1965.1 7 1 70.00 53.10 0.01 20.55 1985.6 7 2 69.80 53.10 0.01 20.45 2006.1 7 3 78.10 44.10 0.00 20.10 2026.2 7 4 75.90 53.60 0.00 23.75 2049.9 7 5 82.90 53.60 0.00 27.25 2077.2 peak in density large larvae 7 6 78.80 55.00 0.00 25.90 2103.1 7 7 75.90 57.00 0.00 25.45 2128.5 7 8 82.40 51.80 0.00 26.10 2154.6 7 9 70.00 59.00 0.00 23.50 2178.1 7 10 75.90 59.00 0.06 26.45 2204.6 7 11 84.20 57.00 0.00 29.60 2234.2 7 12 93.20 57.20 0.00 34.20 2268.4 7 13 84.90 57.20 0.00 30.05 2298.4 7 14 91.90 53.10 0.00 31.50 2329.9 7 15 97.00 57.20 0.00 36.10 2366.0 7 16 89.60 60.10 0.00 33.85 2399.9 7 17 80.60 60.10 0.00 29.35 2429.2 7 18 75.20 57.90 0.03 25.55 2454.8 7 19 70.00 55.00 0.00 21.50 2476.3 7 20 75.90 46.00 0.00 19.95 2496.2 7 21 77.00 48.00 0.00 21.50 2517.7 7 22 91.90 51.80 0.00 30.85 2548.6 7 23 87.80 57.20 0.00 31.50 2580.1 7 24 87.80 57.00 0.00 31.40 2611.5 7 25 91.40 57.00 0.00 33.20 2644.7 7 26 88.00 57.20 0.00 31.60 2676.3 7 27 82.40 59.00 0.00 29.70 2706.0 7 28 84.20 60.10 0.00 31.15 2737.1 7 29 93.90 60.10 0.00 36.00 2773.1 7 30 79.00 60.10 0.00 28.55 2801.7 7 31 75.90 60.80 0.00 27.35 2829.0 8 1 78.80 60.10 0.00 28.45 2857.5 8 2 69.80 59.00 0.01 23.40 2880.9 8 3 73.90 57.90 0.04 24.90 2905.8 8 4 84.20 52.00 0.00 27.10 2932.9 8 5 88.00 59.00 0.00 32.50 2965.4 8 6 84.20 60.80 0.00 31.50 2996.9 8 7 91.90 59.00 0.00 34.45 3031.3 8 8 87.80 60.10 0.00 32.95 3064.3 8 9 91.90 60.80 0.00 35.35 3099.6 8 10 80.10 60.10 0.00 29.10 3128.7 8 11 72.00 60.80 0.05 25.40 3154.1 8 12 75.20 59.00 0.00 26.10 3180.2 8 13 88.00 57.20 0.00 31.60 3211.8 8 14 93.20 57.00 0.00 34.10 3245.9 8 15 79.00 60.10 0.00 28.55 3274.5 8 16 77.00 57.00 0.00 26.00 3300.5 8 17 77.00 48.20 0.00 21.60 3322.1 8 18 86.00 50.00 0.00 27.00 3349.1 8 19 79.00 59.00 0.00 28.00 3377.1 8 20 82.40 59.00 0.00 29.70 3406.8 8 21 93.20 53.60 0.00 32.40 3439.2 8 22 78.80 55.00 0.00 25.90 3465.1 8 23 71.60 55.90 0.01 22.75 3487.8 8 24 72.00 51.80 0.01 20.90 3508.7 8 25 69.10 46.40 0.23 16.75 3525.5 8 26 60.80 57.00 0.32 17.90 3543.4 8 27 77.00 53.10 0.01 24.05 3567.4 8 28 87.80 48.00 0.00 26.90 3594.3 8 29 75.20 53.60 0.00 23.40 3617.7 8 30 73.90 59.00 0.01 25.45 3643.2 8 31 69.80 59.00 0.12 23.40 3666.6 9 1 99.70 83.30 0.00 50.50 3717.1 Px Pn 9 2 91.80 82.20 0.00 46.00 3763.1 Px Pn 9 3 75.90 54.00 0.00 23.95 3787.0 9 4 81.00 44.60 0.00 21.80 3808.8 9 5 89.60 51.80 0.00 29.70 3838.5 9 6 81.00 50.00 0.00 24.50 3863.0 9 7 79.00 53.10 0.02 25.05 3888.1 9 8 71.60 57.00 0.07 23.30 3911.4 9 9 77.00 53.10 0.21 24.05 3935.4 9 10 68.00 55.40 0.04 20.70 3956.1 9 11 66.20 55.00 0.84 19.60 3975.7 9 12 64.90 51.80 0.19 17.35 3993.1 9 13 66.20 48.00 0.07 16.10 4009.2 9 14 69.80 51.80 0.01 19.80 4029.0 9 15 63.00 51.10 0.39 16.05 4045.0 9 16 68.00 48.00 0.22 17.00 4062.0 9 17 68.00 46.00 0.00 16.00 4078.0 9 18 70.00 42.10 0.00 15.05 4093.1 9 19 70.00 44.10 0.00 16.05 4109.1 9 20 70.00 46.00 0.00 17.00 4126.1 9 21 70.10 46.40 0.00 17.25 4143.4 Px 9 22 81.70 61.00 0.00 30.35 4173.7 Px Pn 9 23 69.70 67.30 0.00 27.50 4201.2 Px Pn 9 24 74.50 55.00 0.00 23.75 4225.0 Vx Vn 9 25 75.90 59.00 0.00 26.45 4251.4 9 26 78.80 48.00 0.00 22.40 4273.8 9 27 80.10 52.00 0.00 25.05 4298.9 9 28 84.20 48.00 0.00 25.10 4324.0 9 29 63.00 53.10 0.01 17.05 4341.0 9 30 68.00 51.10 0.00 18.55 4359.6 10 1 68.00 59.00 0.02 22.50 4382.1 10 2 64.90 46.40 0.01 14.65 4396.7 10 3 63.00 39.00 0.00 10.25 4407.0 10 4 62.60 42.10 0.00 11.35 4418.3 10 5 54.00 42.10 0.29 7.05 4425.4 10 6 61.00 44.10 0.47 11.55 4436.9 10 7 54.00 44.10 0.20 8.05 4445.0 10 8 60.10 51.80 0.16 14.95 4459.9 10 9 64.40 50.00 0.08 16.20 4476.1 10 10 66.20 46.00 0.00 15.10 4491.2 10 11 68.00 42.10 0.00 14.05 4505.3 10 12 68.00 41.00 0.00 13.50 4518.8 10 13 66.90 39.90 0.00 12.49 4531.3 10 14 71.60 33.10 0.00 12.90 4544.2 10 15 72.00 35.10 0.00 13.57 4557.7 10 16 75.90 37.40 0.00 16.12 4573.8 10 17 75.20 36.00 0.00 15.37 4589.2 10 18 64.90 37.00 0.00 10.60 4599.8 10 19 62.60 42.10 0.00 11.35 4611.2 10 20 57.20 42.10 0.00 8.65 4619.8 10 21 61.00 39.00 0.00 9.26 4629.1 10 22 66.90 42.10 0.00 13.50 4642.6 10 23 55.40 46.40 0.00 9.90 4652.5 10 24 61.00 48.00 0.02 13.50 4666.0 10 25 55.90 53.10 0.66 13.50 4679.5 10 26 62.60 51.80 0.06 16.20 4695.7 10 27 60.80 48.20 1.35 13.50 4709.2 10 28 60.80 48.20 0.41 13.50 4722.7 10 29 55.90 46.40 0.25 10.15 4732.8 10 30 54.00 46.40 0.15 9.20 4742.0 10 31 55.40 50.00 0.19 11.70 4753.7 11 1 63.00 55.00 0.25 18.00 4771.7 11 2 61.00 53.60 0.08 16.30 4788.0 11 3 57.20 51.80 0.28 13.50 4801.5 11 4 60.80 48.00 0.19 13.40 4814.9 11 5 57.20 45.00 0.34 10.10 4825.0 11 6 55.90 41.00 0.25 7.45 4832.5 11 7 53.60 37.40 0.00 5.24 4837.7 11 8 48.20 32.00 0.00 2.14 4839.9 11 9 46.40 32.00 0.00 1.46 4841.3 11 10 50.00 35.10 0.00 3.20 4844.5 11 11 52.00 28.40 0.01 3.36 4847.9 11 12 60.80 28.00 0.00 7.03 4854.9 11 13 48.20 37.40 0.03 2.72 4857.6 11 14 48.90 39.20 0.07 3.39 4861.0 11 15 52.00 39.20 0.00 4.89 4865.9 11 16 55.40 42.80 0.01 8.10 4874.0 11 17 55.90 32.00 0.00 5.40 4879.4 11 18 55.40 28.00 0.01 4.72 4884.1 11 19 53.60 30.00 0.00 4.16 4888.3 11 20 55.40 26.10 0.00 4.54 4892.8 11 21 46.90 42.80 0.28 3.85 4896.7 11 22 53.60 44.10 0.34 7.85 4904.5 11 23 51.10 42.10 0.31 5.60 4910.1 11 24 46.90 35.60 0.00 1.93 4912.0 11 25 46.90 35.60 0.01 1.93 4914.0 11 26 55.40 44.10 0.30 8.75 4922.7 11 27 57.90 51.10 0.46 13.50 4936.2 11 28 52.00 48.00 0.06 9.00 4945.2 11 29 51.80 44.10 0.00 6.95 4952.2 11 30 50.00 42.10 0.42 5.05 4957.2 12 1 45.00 35.10 0.00 1.13 4958.4 12 2 46.90 32.00 0.03 1.65 4960.0 12 3 46.90 27.00 0.00 1.41 4961.4 12 4 46.40 24.10 0.01 1.16 4962.6 12 5 45.00 21.00 0.00 0.71 4963.3 12 6 46.40 19.40 0.00 1.05 4964.3 12 7 43.00 21.00 0.03 0.26 4964.6 12 8 44.60 35.60 0.19 1.01 4965.6 12 9 43.00 37.40 2.24 0.53 4966.1
DD accumulation on 12-9-18: 4966QA 98% ok    
  
This year is about  versus  QA
 DDs exceed full year 2017 ok
 37 days behind 2016 ok
 DDs exceed full year 30-yr normals ok
Forecast using:  Fox - IPPC forecast for KKLS data
 12 10  49.20 36.20  0.12   2.99   4969.1  0.115_0.00%_precip.    
 12 11  55.10 35.90  0.70   5.65   4974.8  0.698_0.68%_precip.    
 12 12  50.00 44.40  0.03   6.20   4981.0  0.033_0.00%_precip.    
 12 13  50.10 44.20  0.79   6.15   4987.1  0.79_0.00%_precip.    
 12 14  50.30 32.50  0.27   3.04   4990.1  0.265_0.00%_precip.    
Forecast using: 10 yr Hist Avg KKLS 2006-2015
 12 15  44.80 35.20  0.30   1.06   4991.2  *hist_fcst*    
 12 16  44.20 35.80  0.16   0.87   4992.1  *hist_fcst*    
 12 17  45.20 34.70  0.24   1.18   4993.3  *hist_fcst*    
 12 18  44.70 35.50  0.23   1.04   4994.3  *hist_fcst*    
 12 19  44.50 35.50  0.17   0.97   4995.3  *hist_fcst*    
 12 20  44.00 36.40  0.34   0.84   4996.1  *hist_fcst*    
 12 21  45.10 36.30  0.36   1.25   4997.4  *hist_fcst*    
 12 22  45.20 35.50  0.16   1.23   4998.6  *hist_fcst*    
 12 23  44.50 36.50  0.18   1.03   4999.6  *hist_fcst*    
 12 24  44.40 35.80  0.25   0.95   5000.6  *hist_fcst*    
 12 25  43.90 35.20  0.20   0.74   5001.3  *hist_fcst*    
 12 26  43.00 35.20  0.14   0.44   5001.7  *hist_fcst*    
 12 27  43.70 35.30  0.29   0.67   5002.4  *hist_fcst*    
 12 28  44.70 36.20  0.32   1.09   5003.5  *hist_fcst*    
 12 29  45.00 35.20  0.20   1.14   5004.6  *hist_fcst*    
 12 30  42.40 32.40  0.16   0.23   5004.9  *hist_fcst*    
 12 31  41.30 30.10  0.08   0.02   5004.9  *hist_fcst*    
orange tortrix (mild winter) model - Knight
Location: 2018 KKLS Kelso-Longview Airport WA
DD accumulation on 12-9-18: 4966 QA 98% ok  - show details 
  
This year is about  versus  QA
 DDs exceed full year 2017 ok
 37 days behind 2016 ok
 DDs exceed full year 30-yr normals ok
DateDDsEvent
 5-7-18 872peak pheromone trap catch
 5-12-18 966peak female adult emergence
 5-14-18 1020peak egg laying
 5-27-18 1272peak egg hatch
 7-5-18 2077peak in density large larvae
degree-day graph of orange tortrix (mild winter) [small fruit] Knight (1988)