SpecWare 7 Pro - UMASSCSO Fire Blight From 2010-04-22 To 2010-05-10 Temperature DD DD DH Rain Wet Steps Symptoms DH Cougar Date High Low >55 >40 >65 Fall Hrs GBHWTX EIP Ck Bl Sh >60 abcd 04/22 69.7 45.2 4 15 0 0.00 5.8 GB.W. 0 2 0 0000 04/23 64.9 38.5 6 26 0 0.00 1.0 GB... 0 3 0 (0000) 04/24 69.7 37.7 10 40 0 0.00 0.0 GB... 0 5 0 (0000) 04/25 57.3 47.4 10 50 0 0.05 4.8 GB.W. 0 5 100 0000 04/26 62.8 44.5 11 62 0 0.12 6.8 GB.W. 0 6 65 0000 04/27 50.3 33.0 11 66 0 0.03 13.8 GB.W. 0 6 54 0000 04/28 43.0 31.4 11 67 0 0.03 5.8 GB.W. 0 6 4 0000 04/29 60.8 34.6 12 76 0 0.00 0.0 GB... 0 6 5 (0000) 04/30 74.6 39.3 19 93 48 0.00 0.0 GB... 24 10 99 (0000) 05/01 85.9 51.7 33 122 210 0.00 0.0 GBH.T 106 17 337 (0022) 05/02 87.4 60.8 51 154 422 0.00 0.0 GBH.T 213 26 643 (2233) 05/03 78.8 59.4 65 183 475 0.09 9.5 GBHWT 240 33 0 854 3333 05/04 78.8 48.8 72 204 381 0.00 2.8 GBH.T 192 37 7 864 (3333) 05/05 79.5 46.7 81 226 473 0.01 0.8 GBHWT 239 41 16 781 2333 05/06 73.9 51.0 88 247 302 0.05 2.5 GBHWT 153 45 22 555 2233 05/07 70.4 42.3 93 264 226 0.00 0.0 GBH.. 114 47 27 409 (1223) 05/08 66.3 43.7 94 276 226 1.12 11.5 GBHW. 114 48 28 305 0022 05/09 50.3 35.4 94 279 151 0.00 0.0 GB.W. 76 48 28 149 (0001) 05/10 56.6 32.2 94 285 0 0.00 0.0 G 0 48 28 68 (0000) Degree Days are 'Actual' - based on individual temperature readings throughout the day. Plant Development Dates: Green Tip 2010-03-29 First Blossom 2010-04-22 Last Petal 2010-05-10 University of Maryland Model: Apple threshold (80 DD>40) used for Blossom blight 'Steps' key: G Green Tip; from green tip date until Canker blight symptoms B Blossom; from first blossom date until Blossom blight symptoms H 198 Degree Hours > 65F(18C) requirement met W Wetness (dew or rain) requirement met T Average temperature >= 60F(15.5C) X Trauma; from trauma event date Washington State University (Cougarblight) Model: Pathogen Potential column header key: a No fire blight in area in past two seasons b Fire blight in local area last year c Fire blight nearby or in orchard last year d Active cankers present nearby or in orchard Infection Risk key: 0 Low Risk 1 Marginal Risk 2 High Risk 3 Extreme Risk Infection risks are provided in parentheses on dry days to warn of potential risks if wetness were present.