Early Blight Degree Days Worksheet and Late Blight update 2014
Early Blight Threshold = 650 Degree Days
The last Date the Degree Days were updated is in bold.
Late Blight Update:  
For Late blight control,  based on the timing of the disease threshold from previous years, conditions favorable for late
blight are typically reached around the 15th of July. 
Fungicide applications for control of late blight should be made prior to row closure and at least one to two weeks prior 
to July 15th.  For current late blight updates, please continue to check this webpage throughout the summer.
Early Blight Degree Days Worksheet:
Degree Day Formula:  If max temp. >45F then DD = ((max temp.+ min. temp.)/2)-45
Early Blight Threshold = 650 Degree Days The last Date the Degree Days were updated is in bold.
2014
Degree Degree
above Days Days 30 yr avg. 30 yr avg.
Date High temp Low temp 45 D-days positive Cumulative 2013 positive Cumulative
5/5/2014 72.4 33.3 1 7.9 7.9 7.9 0.8 2.6 2.6
5/6/2014 67.9 44.9 1 11.4 11.4 19.3 0.8 2.2 4.8
5/7/2014 62.3 32.2 1 2.3 2.3 21.5 2.1 2.5 7.2
5/8/2014 51.2 29.6 1 -4.6 0.0 21.5 2.1 2.9 10.1
5/9/2014 59.8 25.6 1 -2.3 0.0 21.5 2.1 3.8 13.9
5/10/2014 68.8 29.6 1 4.2 4.2 25.7 2.3 4.0 17.9
5/11/2014 55.5 35.2 1 0.4 0.4 26.1 7.1 4.8 22.6
5/12/2014 43.1 23.6 0 0.0 0.0 26.1 13.9 3.7 26.3
5/13/2014 40.5 23.2 0 0.0 0.0 26.1 28.6 3.7 30.0
5/14/2014 52.9 24.1 1 -6.5 0.0 26.1 40.6 4.7 34.7
5/15/2014 63.1 28.6 1 0.9 0.9 26.9 53.1 5.6 40.3
5/16/2014 71.0 31.0 1 6.0 6.0 32.9 61.7 5.2 45.5
5/17/2014 69.7 35.7 1 7.7 7.7 40.6 73.9 4.8 50.3
5/18/2014 74.8 36.4 1 10.6 10.6 51.2 83.2 6.3 56.6
5/19/2014 72.2 46.1 1 14.2 14.2 65.4 83.2 6.2 62.8
5/20/2014 72.1 37.2 1 9.7 9.7 75.0 84.7 7.1 69.9
5/21/2014 72.2 34.6 1 8.4 8.4 83.4 89.7 7.2 77.1
5/22/2014 68.4 36.8 1 7.6 7.6 91.0 102.1 7.9 85.0
5/23/2014 63.9 39.2 1 6.6 6.6 97.6 113.5 7.6 92.6
5/24/2014 65.5 37.9 1 6.7 6.7 104.3 125.4 7.6 100.2
5/25/2014 58.2 37.4 1 2.8 2.8 107.1 139.2 7.4 107.5
5/26/2014 69.8 33.9 1 6.8 6.8 113.9 156.3 8.3 115.8
5/27/2014 78.3 39.1 1 13.7 13.7 127.6 170.1 8.6 124.4
5/28/2014 78.6 42.6 1 15.6 15.6 143.2 179.3 8.3 132.7
5/29/2014 74.2 38.8 1 11.5 11.5 154.7 188.7 8.2 140.9
5/30/2014 70.7 47.6 1 14.2 14.2 168.9 197.7 8.9 149.8
5/31/2014 78.3 42.2 1 15.3 15.3 184.1 206.5 9.2 159.0
6/1/2014 76.4 39.4 1 12.9 12.9 197.0 212.0 8.5 167.4
6/2/2014 80.9 39.5 1 15.2 15.2 212.2 223.9 8.6 176.0
6/3/2014 79.2 37.2 1 13.2 13.2 225.4 237.9 9.2 185.2
6/4/2014 79.9 36.2 1 13.1 13.1 238.5 250.7 10.0 195.2
6/5/2014 81.0 39.4 1 15.2 15.2 253.7 263.9 11.2 206.4
6/6/2014 81.2 37.9 1 14.6 14.6 268.2 273.7 11.7 218.0
6/7/2014 75.4 40.6 1 13.0 13.0 281.2 284.8 11.0 229.0
6/8/2014 69.7 40.4 1 10.1 10.1 291.3 302.0 11.0 240.0
6/9/2014 73.3 33.8 1 8.6 8.6 299.8 320.0 11.0 251.0
6/10/2014 76.2 33.8 1 10.0 10.0 309.8 344.2 10.9 261.8
6/11/2014 74.3 35.6 1 10.0 10.0 319.8 365.4 11.7 273.5
6/12/2014 76.4 37.6 1 12.0 12.0 331.8 386.6 12.6 286.1
6/13/2014 78.3 37.0 1 12.7 12.7 344.4 408.5 13.3 299.3
6/14/2014 73.3 39.8 1 11.6 11.6 356.0 431.2 13.7 313.0
6/15/2014 73.7 31.8 1 7.8 7.8 363.7 446.9 13.4 326.4
6/16/2014 72.6 39.5 1 11.1 11.1 374.8 463.0 13.6 340.0
6/17/2014 75.7 47.0 1 16.4 16.4 391.1 477.1 13.7 353.7
6/18/2014 70.8 39.5 1 10.2 10.2 401.3 492.5 14.7 368.4
6/19/2014 77.0 34.6 1 10.8 10.8 412.1 507.9 14.1 382.3
6/20/2014 81.6 40.9 1 16.3 16.3 428.3 523.9 15.4 397.7
6/21/2014 79.3 41.6 1 15.5 15.5 443.8 538.9 16.1 413.8
6/22/2014 78.3 42.3 1 15.3 15.3 459.1 557.0 16.1 429.9
6/23/2014 77.4 37.7 1 12.6 12.6 471.6 573.4 16.2 446.0
6/24/2014 80.5 41.1 1 15.8 15.8 487.4 589.2 15.8 461.8
6/25/2014 82.7 43.5 1 18.1 18.1 505.5 607.1 16.1 477.9
6/26/2014 81.6 41.5 1 16.6 16.6 522.1 631.6 15.9 493.8
6/27/2014 74.2 43.8 1 14.0 14.0 536.1 659.7 17.8 510.4
6/28/2014 78.7 41.2 1 15.0 15.0 551.0 683.5 17.2 528.2
6/29/2014 85.3 41.2 1 18.3 18.3 569.3 702.3 17.2 545.4
6/30/2014 85.4 47.7 1 21.6 21.6 590.8 719.3 17.1 562.5
7/1/2014 79.5 40.5 1 15.0 15.0 605.8 735.2 17.5 580.0
7/2/2014 75.0 45.3 1 15.2 15.2 621.0 753.0 17.9 597.9
7/3/2014 74.7 42.4 1 13.6 13.6 634.5 768.1 18.1 616.0
7/4/2014 79.9 43.3 1 16.6 16.6 651.1 788.1 17.7 633.6
7/5/2014 83.1 44.2 1 18.7 18.7 669.8 805.5 18.1 651.7
7/6/2014 85.4 47.6 1 21.5 21.5 691.3 825.0 17.6 669.3
7/7/2014 84.6 46.3 1 20.5 20.5 711.7 848.2 18.2 687.4
7/8/2014 78.1 46.3 1 17.2 17.2 728.9 868.9 18.1 705.5
7/9/2014 81.2 46.5 1 18.9 18.9 747.8 893.9 17.9 723.3
7/10/2014 83.6 43.6 1 18.6 18.6 766.4 915.9 18.8 742.1
7/11/2014 80.3 48.3 1 19.3 19.3 785.7 935.0 18.4 760.4
7/12/2014 83.7 46.3 1 20.0 20.0 805.7 957.4 18.3 778.7
7/13/2014 81.4 49.7 1 20.6 20.6 826.2 978.4 17.9 796.6
7/14/2014 80.2 52.7 1 21.5 21.5 847.7 1001.3 18.4 815.0
7/15/2014 76.6 49.8 1 18.2 18.2 865.9 1016.9 17.7 832.7
7/16/2014 69.9 46.2 1 13.1 13.1 878.9 1033.7 18.1 850.7
7/17/2014 79.3 45.6 1 17.5 17.5 896.4 1050.4 18.1 868.8
7/18/2014 78.9 44.4 1 16.7 16.7 913.0 1069.7 18.1 886.9
7/19/2014 74.7 47.7 1 16.2 16.2 929.2 1089.9 18.4 905.3
7/20/2014 79.8 43.1 1 16.5 16.5 945.7 1112.5 17.6 922.9
7/21/2014 79.9 50.5 1 20.2 20.2 965.9 1134.4 17.7 940.6    
7/22/2014     0 0.0 0.0 965.9 1158.7 17.8 958.3
7/23/2014     0 0.0 0.0 965.9 1182.9 17.5 975.8
7/24/2014     0 0.0 0.0 965.9 1204.5 17.2 993.0
7/25/2014     0 0.0 0.0 965.9 1224.0 17.8 1010.7
7/26/2014     0 0.0 0.0 965.9 1241.8 17.8 1028.5
7/27/2014     0 0.0 0.0 965.9 1256.4 17.4 1045.9
7/28/2014     0 0.0 0.0 965.9 1269.6 18.1 1064.0
7/29/2014     0 0.0 0.0 965.9   18.1 1082.1
7/30/2014     0 0.0 0.0 965.9   18.7 1100.7
7/31/2014     0 0.0 0.0 965.9   18.0 1118.7
8/1/2014     0 0.0 0.0 965.9   18.1 1136.8
8/2/2014     0 0.0 0.0 965.9   17.9 1154.7
8/3/2014     0 0.0 0.0 965.9   17.1 1171.8
8/4/2014     0 0.0 0.0 965.9   17.1 1188.8
8/5/2014     0 0.0 0.0 965.9   17.2 1206.0
8/6/2014     0 0.0 0.0 965.9   17.2 1223.1
8/7/2014     0 0.0 0.0 965.9   17.8 1240.9
8/8/2014     0 0.0 0.0 965.9   17.5 1258.4
8/9/2014     0 0.0 0.0 965.9   16.8 1275.2
8/10/2014     0 0.0 0.0 965.9   16.1 1291.3
8/11/2014     0 0.0 0.0 965.9   16.1 1307.3
8/12/2014     0 0.0 0.0 965.9   16.6 1323.9
8/13/2014     0 0.0 0.0 965.9   16.0 1339.9
8/14/2014     0 0.0 0.0 965.9   15.4 1355.3
8/15/2014     0 0.0 0.0 965.9   15.6 1370.8
8/16/2014     0 0.0 0.0 965.9   16.1 1386.9
8/17/2014     0 0.0 0.0 965.9   16.4 1403.3
8/18/2014     0 0.0 0.0 965.9   16.1 1419.4
8/19/2014     0 0.0 0.0 965.9   16.2 1435.6
8/20/2014     0 0.0 0.0 965.9   15.3 1450.9
8/21/2014     0 0.0 0.0 965.9   15.4 1466.3
8/22/2014     0 0.0 0.0 965.9   15.3 1481.6
8/23/2014     0 0.0 0.0 965.9   15.3 1496.9
8/24/2014     0 0.0 0.0 965.9   15.1 1512.0
8/25/2014     0 0.0 0.0 965.9   14.9 1526.9
8/26/2014     0 0.0 0.0 965.9   14.4 1541.3
8/27/2014     0 0.0 0.0 965.9   14.7 1556.0
8/28/2014     0 0.0 0.0 965.9   14.8 1570.8
8/29/2014     0 0.0 0.0 965.9   14.5 1585.3
8/30/2014     0 0.0 0.0 965.9   13.9 1599.2
8/31/2014     0 0.0 0.0 965.9   13.5 1612.7
To hear the disease phone message report call (719)754-3494 ext. 39
If you have any questions please contact Rob Davidson, (719)754-3496 or 
Andrew Houser (719)754-3494 ext. 26