Ted Alway, Editor
Phone: (509) 664-5540
Fax: (509) 664-5561
e-mail: alway@coopext.cahe.wsu.edu
Partial Funding provided by: Washington State Tree Fruit Research Commission, U.S. Department of Agriculture-Agricultural Research Service.
AREAWIDE IPM UPDATE
WSU Cooperative Extension, Chelan County
400 Washington St.
Wenatchee, WA 98801
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| Degree day lookup table for the obliquebanded leafroller | ||
|---|---|---|
| Lower threshold=43 | Upper threshold=85 | Vertical cut-off |
| Minimum temperatures ---> | ||||||||||||
| Maximum | 15 | 18 | 21 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48 |
| 43 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| 46 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | |
| 49 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 4 | 6 |
| 52 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 6 | 7 |
| 55 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 6 | 7 | 9 |
| 58 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 9 | 10 |
| 61 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | 12 |
| 64 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 10 | 12 | 13 |
| 67 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 11 | 12 | 13 | 15 |
| 70 | 9 | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 13 | 15 | 16 |
| 73 | 10 | 10 | 10 | 11 | 11 | 12 | 12 | 13 | 14 | 15 | 16 | 18 |
| 76 | 11 | 11 | 12 | 12 | 13 | 13 | 14 | 14 | 15 | 16 | 18 | 19 |
| 79 | 12 | 13 | 13 | 13 | 14 | 14 | 15 | 16 | 17 | 18 | 19 | 21 |
| 82 | 14 | 14 | 14 | 15 | 15 | 16 | 16 | 17 | 18 | 19 | 21 | 22 |
| 85 | 15 | 15 | 16 | 16 | 17 | 17 | 18 | 19 | 20 | 21 | 22 | 24 |
| 88 | 10 | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 14 | 15 | 16 | 17 |
| 91 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 12 | 12 | 13 | 14 | 15 |
| 94 | 8 | 9 | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 13 | 14 |
| 97 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 11 | 12 | 13 |
| 100 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 11 | 12 |
| 103 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 11 | 12 |
| 106 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 | 11 |
| 109 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 10 | 11 |
| 112 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 10 |
| 115 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 10 |
| Min's ---> | 15 | 18 | 21 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48 |
| Minimum temperatures (continued) ---> | ||||||||||||
| Maximum | 51 | 54 | 57 | 60 | 63 | 66 | 69 | 72 | 75 | 78 | 81 | 84 |
| 52 | 9 | |||||||||||
| 55 | 10 | 12 | ||||||||||
| 58 | 12 | 13 | 15 | |||||||||
| 61 | 13 | 15 | 16 | 18 | ||||||||
| 64 | 15 | 16 | 18 | 19 | 21 | |||||||
| 67 | 16 | 18 | 19 | 21 | 22 | 24 | ||||||
| 70 | 18 | 19 | 21 | 22 | 24 | 25 | 27 | |||||
| 73 | 19 | 21 | 22 | 24 | 25 | 27 | 28 | 30 | ||||
| 76 | 21 | 22 | 24 | 25 | 27 | 28 | 30 | 31 | 33 | |||
| 79 | 22 | 24 | 25 | 27 | 28 | 30 | 31 | 33 | 34 | 36 | ||
| 82 | 24 | 25 | 27 | 28 | 30 | 31 | 33 | 34 | 36 | 37 | 39 | |
| 85 | 25 | 27 | 28 | 30 | 31 | 33 | 34 | 36 | 37 | 39 | 40 | 42 |
| 88 | 18 | 20 | 21 | 22 | 23 | 23 | 24 | 24 | 24 | 24 | 22 | 14 |
| 91 | 16 | 17 | 18 | 19 | 20 | 21 | 21 | 21 | 21 | 20 | 17 | 10 |
| 94 | 15 | 16 | 17 | 18 | 18 | 19 | 19 | 19 | 18 | 17 | 15 | 8 |
| 97 | 14 | 15 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 16 | 13 | 7 |
| 100 | 13 | 14 | 15 | 15 | 16 | 16 | 16 | 16 | 15 | 14 | 12 | 7 |
| 103 | 13 | 13 | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 13 | 11 | 6 |
| 106 | 12 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 12 | 10 | 6 |
| 109 | 11 | 12 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 12 | 10 | 5 |
| 112 | 11 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 9 | 5 |
| 115 | 11 | 11 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 11 | 9 | 5 |
| Min's ---> | 51 | 54 | 57 | 60 | 63 | 66 | 69 | 72 | 75 | 78 | 81 | 84 |
| Obliquebanded Leafroller Degree-day Model Lookup Table (DRAFT-1995/96) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DDA | %Catch | %Hatch | DDA | %Catch | %Hatch | DDA | %Catch | %Hatch | DDA | %Catch | %Hatch | |||
| 0 | 1 | - | 730 | 99 | 90.2 | 1460 | 4 | - | 2190 | 80 | 56 | |||
| 10 | 3 | - | 740 | 99 | 91.5 | 1470 | 4 | - | 2200 | 81 | 58 | |||
| 20 | 7 | - | 750 | 99 | 92.6 | 1480 | 5 | - | 2210 | 82 | 60 | |||
| 30 | 12 | - | 760 | 99 | 93.6 | 1490 | 6 | - | 2220 | 82 | 62 | |||
| 40 | 16 | - | 770 | 99 | 94.5 | 1500 | 6 | - | 2230 | 83 | 63 | |||
| 50 | 20 | - | 780 | 99 | 95.2 | 1510 | 7 | - | 2240 | 84 | 65 | |||
| 60 | 24 | - | 790 | 99 | 95.9 | 1520 | 8 | - | 2250 | 84 | 67 | |||
| 70 | 28 | - | 800 | 99 | 96.5 | 1530 | 9 | - | 2260 | 85 | 69 | |||
| 80 | 31 | - | 810 | 99 | 97 | 1540 | 10 | - | 2270 | 85 | 71 | |||
| 90 | 35 | - | 820 | 99 | 97.4 | 1550 | 11 | - | 2280 | 86 | 72 | |||
| 100 | 38 | - | 830 | 99 | 97.8 | 1560 | 12 | - | 2290 | 86 | 74 | |||
| 110 | 42 | - | 840 | 99 | 98.1 | 1570 | 13 | - | 2300 | 87 | 75 | |||
| 120 | 45 | - | 850 | 99 | 98.4 | 1580 | 14 | - | 2310 | 87 | 77 | |||
| 130 | 48 | - | 860 | 99 | 98.6 | 1590 | 15 | - | 2320 | 88 | 78 | |||
| 140 | 50 | - | 870 | 100 | 98.9 | 1600 | 16 | - | 2330 | 88 | 80 | |||
| 150 | 53 | - | 880 | - | 99.1 | 1610 | 17 | - | 2340 | 89 | 81 | |||
| 160 | 56 | - | 890 | - | 99.4 | 1620 | 18 | - | 2350 | 89 | 82 | |||
| 170 | 58 | - | 900 | - | 99.6 | 1630 | 19 | - | 2360 | 90 | 83 | |||
| 180 | 61 | - | 910 | - | 99.9 | 1640 | 20 | - | 2370 | 90 | 84 | |||
| 190 | 63 | - | 920 | - | 100 | 1650 | 22 | - | 2380 | 91 | 85 | |||
| 200 | 65 | - | 930 | - | - | 1660 | 23 | - | 2390 | 91 | 86 | |||
| 210 | 67 | - | 940 | - | - | 1670 | 24 | - | 2400 | 91 | 87 | |||
| 220 | 69 | - | 950 | - | - | 1680 | 25 | - | 2410 | 92 | 88 | |||
| 230 | 71 | - | 960 | - | - | 1690 | 26 | - | 2420 | 92 | 89 | |||
| 240 | 73 | - | 970 | - | - | 1700 | 27 | - | 2430 | 92 | 90 | |||
| 250 | 75 | - | 980 | - | - | 1710 | 29 | - | 2440 | 93 | 90 | |||
| 260 | 76 | - | 990 | - | - | 1720 | 30 | - | 2450 | 93 | 91 | |||
| 270 | 78 | - | 1000 | - | - | 1730 | 31 | - | 2460 | 93 | 92 | |||
| 280 | 79 | - | 1010 | - | - | 1740 | 32 | - | 2470 | 93 | 92 | |||
| 290 | 81 | - | 1020 | - | - | 1750 | 34 | - | 2480 | 94 | 93 | |||
| 300 | 82 | - | 1030 | - | - | 1760 | 35 | - | 2490 | 94 | 93 | |||
| 310 | 83 | - | 1040 | - | - | 1770 | 36 | - | 2500 | 94 | 94 | |||
| 320 | 84 | - | 1050 | - | - | 1780 | 37 | - | 2510 | 94 | 94 | |||
| 330 | 86 | - | 1060 | - | - | 1790 | 38 | - | 2520 | 95 | 94 | |||
| 340 | 87 | - | 1070 | - | - | 1800 | 40 | - | 2530 | 95 | 95 | |||
| 350 | 88 | - | 1080 | - | - | 1810 | 41 | - | 2540 | 95 | 95 | |||
| 360 | 89 | - | 1090 | - | - | 1820 | 42 | - | 2550 | 95 | 95 | |||
| 370 | 89 | - | 1100 | - | - | 1830 | 43 | - | 2560 | 95 | 96 | |||
| 380 | 90 | - | 1110 | - | - | 1840 | 45 | - | 2570 | 96 | 96 | |||
| 390 | 91 | - | 1120 | - | - | 1850 | 46 | - | 2580 | 96 | 96 | |||
| 400 | 92 | - | 1130 | - | - | 1860 | 47 | 0 | 2590 | 96 | 97 | |||
| 410 | 92 | - | 1140 | - | - | 1870 | 48 | 0.29 | 2600 | 96 | 97 | |||
| 420 | 93 | 0 | 1150 | - | - | 1880 | 49 | 0.56 | 2610 | 96 | 97 | |||
| 430 | 93 | 0.5 | 1160 | - | - | 1890 | 51 | 1.01 | 2620 | 96 | 98 | |||
| 440 | 94 | 1.3 | 1170 | - | - | 1900 | 52 | 1.63 | 2630 | 97 | 98 | |||
| 450 | 94 | 2.4 | 1180 | - | - | 1910 | 53 | 2.42 | 2640 | 97 | 98 | |||
| 460 | 95 | 3.9 | 1190 | - | - | 1920 | 54 | 3 | 2650 | 97 | 99 | |||
| 470 | 95 | 5.7 | 1200 | - | - | 1930 | 55 | 4 | 2660 | 97 | 99 | |||
| 480 | 96 | 7.8 | 1210 | - | - | 1940 | 56 | 6 | 2670 | 97 | 100 | |||
| 490 | 96 | 10.3 | 1220 | - | - | 1950 | 58 | 7 | 2680 | 97 | - | |||
| 500 | 96 | 13 | 1230 | - | - | 1960 | 59 | 8 | 2690 | 98 | - | |||
| 510 | 97 | 16.2 | 1240 | - | - | 1970 | 60 | 10 | 2700 | 98 | - | |||
| 520 | 97 | 19.6 | 1250 | - | - | 1980 | 61 | 12 | 2710 | 98 | - | |||
| 530 | 97 | 23.4 | 1260 | - | - | 1990 | 62 | 13 | 2720 | 98 | - | |||
| 540 | 97 | 27.5 | 1270 | - | - | 2000 | 63 | 15 | 2730 | 98 | - | |||
| 550 | 97 | 31.9 | 1280 | - | - | 2010 | 64 | 17 | 2740 | 99 | - | |||
| 560 | 98 | 36.7 | 1290 | - | - | 2020 | 65 | 19 | 2750 | 99 | - | |||
| 570 | 98 | 41.8 | 1300 | - | - | 2030 | 66 | 21 | 2760 | 99 | - | |||
| 580 | 98 | 47.2 | 1310 | - | - | 2040 | 67 | 23 | 2770 | 99 | - | |||
| 590 | 98 | 51.6 | 1320 | - | - | 2050 | 68 | 25 | 2780 | 100 | - | |||
| 600 | 98 | 56 | 1330 | - | - | 2060 | 69 | 27 | 2790 | - | - | |||
| 610 | 98 | 60.1 | 1340 | - | - | 2070 | 70 | 30 | 2800 | - | - | |||
| 620 | 98 | 63.9 | 1350 | - | - | 2080 | 71 | 32 | 2810 | - | - | |||
| 630 | 98 | 67.4 | 1360 | - | - | 2090 | 72 | 34 | 2820 | - | - | |||
| 640 | 98 | 70.7 | 1370 | - | - | 2100 | 73 | 36 | 2830 | - | - | |||
| 650 | 98 | 73.7 | 1380 | - | - | 2110 | 74 | 38 | 2840 | - | - | |||
| 660 | 98 | 76.5 | 1390 | - | - | 2120 | 75 | 41 | 2850 | - | - | |||
| 670 | 98 | 79 | 1400 | 0.4 | - | 2130 | 75 | 43 | 2860 | - | - | |||
| 680 | 98 | 81.4 | 1410 | 1 | - | 2140 | 76 | 45 | 2870 | - | - | |||
| 690 | 99 | 83.5 | 1420 | 1 | - | 2150 | 77 | 47 | 2880 | - | - | |||
| 700 | 99 | 85.5 | 1430 | 2 | - | 2160 | 78 | 49 | 2890 | - | - | |||
| 710 | 99 | 87.2 | 1440 | 2 | - | 2170 | 79 | 51 | 2900 | - | - | |||
| 720 | 99 | 88.8 | 1450 | 3 | - | 2180 | 79 | 54 | ||||||