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Ester/Amine Spring Broadleaf Herbicide Timer - Purdue (GDD 50)
through Wed, Mar. 29. 2017

 

GDD Total: 18 (Base 50) through Wed, Mar. 29, 2017

  

Ann Arbor, MI

       

Forecast »

Over

601

Amine

201

Ester or Amine

151

Ester

110

Early

71

Under

0

 

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2016 & 2017

2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-19 39° 64° 101 50 18 2 0
02-20 34° 53° 122 62 20 2 0
02-21 36° 58° 147 77 25 2 0
02-22 41° 61° 176 96 34 3 0
02-23 43° 65° 208 117 46 7 0
02-24 39° 66° 238 138 56 9 0
02-25 24° 51° 254 143 56 9 0
02-26 25° 40° 264 144 56 9 0
02-27 31° 50° 282 152 56 9 0
02-28 36° 57° 307 167 61 9 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 27° 57° 327 177 61 9 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-02 25° 31° 333 177 61 9 0
03-03 19° 27° 334 177 61 9 0
03-04 16° 31° 336 177 61 9 0
03-05 23° 38° 344 177 61 9 0
03-06 36° 56° 368 191 65 9 0
03-07 38° 57° 394 207 71 9 0
03-08 38° 52° 417 220 73 9 0
03-09 31° 41° 431 224 73 9 0
03-10 18° 34° 435 224 73 9 0
03-11 15° 24° 435 224 73 9 0
03-12 15° 30° 436 224 73 9 0
03-13 19° 24° 436 224 73 9 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-14 13° 22° 436 224 73 9 0
03-15 14° 29° 436 224 73 9 0
03-16 17° 39° 442 224 73 9 0
03-17 24° 36° 450 224 73 9 0
03-18 32° 38° 463 227 73 9 0
03-19 34° 41° 479 233 73 9 0
03-20 34° 45° 496 240 73 9 0
03-21 30° 55° 516 251 74 9 0
03-22 19° 35° 522 251 74 9 0
03-23 21° 42° 531 251 74 9 0
03-24 35° 74° 564 273 86 14 0
03-25 40° 52° 588 287 91 14 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-26 39° 50° 610 300 93 14 0
03-27 49° 59° 642 321 105 18 0
03-28 40° 52° 666 336 109 18 0
03-29 31° 55° 688 347 110 18 0
03-30 34° 43° 704 354 110 18 0
03-31 40° 52° 728 367 114 18 0
04-01 35° 51° 749 378 115 18 0
04-02 33° 53° 770 389 116 18 0
04-03 38° 56° 795 404 121 18 0
04-04 42° 57° 823 422 129 18 0
04-05 40° 56° 849 438 135 18 0
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-19 31° 61° 30 14 4 0 0
02-20 38° 61° 57 31 11 0 0
02-21 31° 44° 73 37 11 0 0
02-22 27° 39° 84 38 11 0 0
02-23 22° 43° 95 39 11 0 0
02-24 31° 33° 105 39 11 0 0
02-25 23° 33° 111 39 11 0 0
02-26 22° 31° 116 39 11 0 0
02-27 25° 42° 127 40 11 0 0
02-28 39° 65° 157 60 21 2 0
02-29 29° 50° 175 68 21 2 0
03-01 23° 30° 179 68 21 2 0
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-02 16° 28° 179 68 21 2 0
03-03 10° 30° 179 68 21 2 0
03-04 23° 34° 186 68 21 2 0
03-05 27° 34° 194 68 21 2 0
03-06 25° 35° 202 68 21 2 0
03-07 35° 63° 229 85 29 2 0
03-08 50° 72° 268 114 48 13 6
03-09 57° 72° 310 146 70 27 15
03-10 46° 58° 340 166 80 29 15
03-11 35° 56° 364 180 83 29 15
03-12 28° 61° 386 192 86 29 15
03-13 44° 49° 411 207 90 29 15
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-14 43° 61° 441 227 101 31 15
03-15 46° 54° 470 245 109 32 15
03-16 45° 60° 500 266 119 34 15
03-17 40° 55° 526 281 125 34 15
03-18 29° 51° 544 290 125 34 15
03-19 27° 40° 555 291 125 34 15
03-20 23° 46° 568 293 125 34 15
03-21 25° 46° 582 297 125 34 15
03-22 28° 62° 605 310 128 34 15
03-23 39° 53° 629 324 132 34 15
03-24 36° 59° 654 340 137 34 15
03-25 29° 43° 668 344 137 34 15
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-26 27° 48° 683 349 137 34 15
03-27 26° 69° 709 365 143 34 15
03-28 39° 49° 731 377 145 34 15
03-29 31° 54° 751 387 145 34 15
03-30 32° 62° 776 402 150 34 15
03-31 54° 63° 813 428 166 43 19
04-01 41° 53° 837 443 171 43 19
04-02 28° 43° 851 447 171 43 19
04-03 21° 49° 864 449 171 43 19
04-04 28° 44° 878 454 171 43 19
04-05 18° 41° 886 454 171 43 19
04-06 31° 53° 906 464 171 43 19
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-07 32° 46° 923 471 171 43 19
04-08 28° 42° 936 474 171 43 19
04-09 23° 33° 941 474 171 43 19
04-10 23° 35° 948 474 171 43 19
04-11 38° 60° 975 491 178 43 19
04-12 29° 49° 992 498 178 43 19
04-13 29° 51° 1011 506 178 43 19
04-14 31° 58° 1033 519 181 43 19
04-15 35° 70° 1063 539 191 45 19
04-16 44° 76° 1101 567 209 55 24
04-17 41° 79° 1139 594 227 64 28
04-18 41° 83° 1179 625 247 77 36
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-19 50° 63° 1214 650 262 84 38
04-20 44° 68° 1248 673 276 90 39
04-21 50° 61° 1282 697 290 96 40
04-22 48° 59° 1314 719 302 100 40
04-23 37° 60° 1340 736 308 100 40
04-24 35° 67° 1369 755 317 101 40
04-25 45° 76° 1408 783 336 111 45
04-26 44° 56° 1436 801 344 111 45
04-27 41° 61° 1465 820 353 112 45
04-28 41° 49° 1488 834 356 112 45
04-29 45° 53° 1515 851 363 112 45
04-30 43° 58° 1544 869 371 112 45
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-01 48° 54° 1573 888 380 113 45
05-02 46° 53° 1600 905 387 113 45
05-03 42° 64° 1631 926 399 116 45
05-04 47° 59° 1662 947 410 119 45
05-05 44° 66° 1695 971 423 125 45
05-06 44° 73° 1732 997 440 133 49
05-07 49° 76° 1773 1028 460 146 57
05-08 41° 69° 1806 1051 474 151 57
05-09 40° 65° 1836 1072 484 154 57
05-10 49° 53° 1865 1091 493 155 57
05-11 50° 67° 1902 1117 510 163 61
05-12 53° 74° 1944 1149 531 177 69
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-13 52° 67° 1981 1177 549 187 74
05-14 41° 56° 2008 1193 556 187 74
05-15 37° 48° 2028 1204 556 187 74
05-16 37° 69° 2059 1225 567 190 74
05-17 53° 63° 2095 1250 583 197 77
05-18 42° 67° 2127 1273 595 202 77
05-19 41° 72° 2162 1297 610 208 78
05-20 42° 73° 2197 1322 625 216 81
05-21 56° 74° 2240 1355 648 230 90
05-22 51° 74° 2281 1386 669 243 98
05-23 38° 79° 2317 1412 685 251 101
05-24 45° 86° 2361 1446 709 267 112
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-25 60° 86° 2412 1487 740 291 131
05-26 67° 88° 2468 1533 775 318 153
05-27 64° 87° 2521 1577 809 344 174
05-28 63° 88° 2575 1620 843 369 194
05-29 69° 88° 2631 1666 879 398 218
05-30 60° 87° 2683 1708 910 421 236
05-31 57° 85° 2732 1747 940 442 252
06-01 56° 85° 2780 1786 968 463 268
06-02 64° 84° 2832 1828 1000 487 287
06-03 54° 82° 2879 1864 1026 505 300
06-04 60° 82° 2928 1903 1056 526 316
06-05 61° 73° 2973 1938 1081 543 328
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-06 58° 82° 3021 1976 1109 563 343
06-07 54° 66° 3059 2005 1127 574 349
06-08 48° 71° 3097 2032 1144 583 353
06-09 48° 74° 3136 2061 1163 594 359
06-10 60° 86° 3186 2102 1194 617 377
06-11 69° 95° 3247 2152 1234 649 404
06-12 62° 80° 3296 2191 1263 670 420
06-13 49° 75° 3336 2221 1284 683 428
06-14 62° 77° 3383 2259 1311 702 442
06-15 62° 83° 3434 2299 1342 725 460
06-16 65° 77° 3483 2338 1371 746 476
06-17 61° 88° 3535 2381 1403 770 495
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-18 55° 90° 3586 2421 1433 792 512
06-19 59° 92° 3639 2465 1467 818 533
06-20 72° 93° 3700 2515 1508 850 560
06-21 59° 86° 3750 2556 1538 873 578
06-22 62° 86° 3802 2597 1570 897 597
06-23 66° 79° 3852 2638 1600 919 614
06-24 58° 85° 3902 2677 1630 940 630
06-25 55° 88° 3952 2717 1659 962 647
06-26 64° 90° 4007 2762 1694 989 669
06-27 68° 95° 4066 2811 1734 1020 695
06-28 60° 70° 4109 2845 1757 1036 706
06-29 50° 80° 4152 2878 1780 1051 716
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-30 55° 84° 4200 2915 1808 1071 731
07-01 61° 77° 4247 2952 1834 1089 744
07-02 51° 78° 4289 2985 1857 1104 754
07-03 52° 81° 4334 3020 1882 1121 766
07-04 53° 80° 4379 3054 1906 1137 777
07-05 67° 88° 4434 3099 1942 1164 799
07-06 65° 89° 4489 3144 1977 1191 821
07-07 69° 94° 4548 3194 2016 1223 848
07-08 69° 90° 4606 3242 2054 1253 873
07-09 64° 78° 4655 3281 2083 1274 889
07-10 62° 84° 4706 3321 2114 1296 906
07-11 63° 89° 4760 3366 2148 1323 928
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-12 68° 95° 4819 3415 2187 1354 954
07-13 69° 93° 4879 3464 2227 1385 980
07-14 70° 89° 4936 3511 2264 1414 1004
07-15 66° 79° 4986 3552 2294 1437 1022
07-16 64° 74° 5033 3589 2321 1456 1036
07-17 60° 87° 5085 3630 2353 1479 1054
07-18 70° 89° 5143 3678 2391 1509 1079
07-19 59° 89° 5195 3720 2422 1533 1098
07-20 59° 89° 5247 3762 2454 1557 1117
07-21 66° 92° 5304 3809 2492 1586 1141
07-22 73° 94° 5365 3861 2533 1620 1170
07-23 75° 96° 5429 3914 2577 1656 1201
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-24 73° 85° 5486 3962 2614 1685 1225
07-25 76° 92° 5548 4014 2656 1719 1254
07-26 65° 89° 5603 4059 2691 1746 1276
07-27 65° 92° 5660 4105 2728 1774 1299
07-28 67° 86° 5715 4150 2763 1801 1321
07-29 67° 84° 5768 4194 2796 1827 1342
07-30 67° 80° 5819 4235 2827 1850 1360
07-31 67° 82° 5872 4277 2860 1874 1379
08-01 65° 87° 5926 4321 2894 1901 1401
08-02 68° 86° 5981 4366 2929 1927 1422
08-03 65° 91° 6037 4413 2965 1956 1446
08-04 64° 91° 6093 4458 3001 1983 1468
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-05 70° 88° 6150 4506 3038 2013 1493
08-06 63° 85° 6203 4548 3071 2037 1512
08-07 65° 85° 6256 4591 3103 2062 1532
08-08 58° 86° 6306 4631 3133 2084 1549
08-09 63° 89° 6359 4675 3167 2110 1570
08-10 69° 95° 6419 4725 3207 2142 1597
08-11 75° 92° 6481 4776 3249 2176 1626
08-12 75° 93° 6543 4828 3291 2210 1655
08-13 75° 85° 6601 4876 3329 2240 1680
08-14 68° 83° 6654 4920 3362 2265 1700
08-15 66° 79° 6705 4960 3393 2287 1717
08-16 71° 82° 6759 5005 3427 2314 1739
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-17 65° 85° 6812 5048 3460 2339 1759
08-18 64° 85° 6865 5090 3493 2363 1778
08-19 69° 90° 6922 5138 3530 2393 1803
08-20 67° 86° 6977 5182 3564 2419 1824
08-21 62° 77° 7024 5219 3592 2438 1838
08-22 56° 78° 7069 5254 3617 2455 1850
08-23 53° 61° 7104 5279 3632 2462 1852
08-24 73° 81° 7159 5324 3667 2489 1874
08-25 71° 85° 7215 5370 3703 2517 1897
08-26 62° 84° 7266 5411 3734 2541 1916
08-27 66° 77° 7316 5451 3764 2562 1932
08-28 71° 86° 7372 5498 3800 2591 1956
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-29 65° 84° 7425 5540 3833 2615 1975
08-30 65° 82° 7476 5582 3864 2639 1994
08-31 64° 78° 7525 5620 3893 2659 2009
09-01 59° 72° 7569 5654 3916 2675 2020
09-02 55° 75° 7612 5687 3940 2690 2030
09-03 53° 77° 7654 5720 3962 2705 2040
09-04 52° 80° 7698 5754 3986 2721 2051
09-05 56° 84° 7746 5792 4014 2741 2066
09-06 68° 90° 7803 5839 4051 2770 2090
09-07 74° 87° 7862 5887 4090 2800 2115
09-08 73° 79° 7916 5931 4124 2827 2137
09-09 66° 81° 7967 5973 4155 2850 2155
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-10 62° 73° 8013 6008 4181 2867 2167
09-11 55° 71° 8054 6039 4202 2880 2175
09-12 51° 75° 8095 6070 4223 2893 2183
09-13 55° 81° 8141 6106 4249 2911 2196
09-14 62° 74° 8187 6143 4275 2930 2210
09-15 52° 73° 8227 6173 4295 2942 2217
09-16 51° 78° 8270 6205 4317 2956 2226
09-17 67° 73° 8318 6243 4346 2976 2241
09-18 63° 79° 8367 6282 4374 2997 2257
09-19 58° 84° 8415 6321 4403 3018 2273
09-20 61° 82° 8465 6360 4433 3039 2289
09-21 55° 82° 8511 6397 4459 3058 2303
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-22 62° 76° 8558 6434 4486 3077 2317
09-23 63° 79° 8607 6473 4515 3098 2333
09-24 56° 71° 8649 6504 4536 3111 2341
09-25 50° 73° 8688 6533 4556 3122 2347
09-26 61° 68° 8730 6566 4578 3137 2357
09-27 49° 68° 8767 6592 4595 3146 2361
09-28 50° 58° 8799 6615 4607 3150 2361
09-29 57° 62° 8837 6642 4625 3159 2365
09-30 59° 61° 8875 6671 4643 3170 2370

 

Latest Updates

March 29th, 2017Timing crabgrass pre-emergence applications

Please note that Dr. Frank has written another helpful article available from the MSU Extension web site.

http://msue.anr.msu.edu/news/timing_crabgrass_pre_emergence_applications


 

March 9th, 2017Controlling Annual Bluegrass Seedheads: Spray Now or Wait?

Dr. Kevin Frank has posted a useful article at the MSU Extension website. Please note it is written specifically for Michigan but may apply to other midwest regions.

"Growing degree-days have accumulated quickly, but it may not yet be time to apply plant growth regulators to control annual bluegrass seedheads on golf courses.

Read more: http://msue.anr.msu.edu/news/controlling_annual_bluegrass_seedheads_spray_now_or_wait


 

February 26th, 2017Early Spring in Michigan: Boom or Bust?

Dr. Kevin Frank has posted a helpful article on the MSU Extension website. Much of the midwest is experiencing the same (very) early warm-up, so non-Michiganders may find it help as well!

http://msue.anr.msu.edu/news/is_an_early_spring_a_boom_or_bust_for_golf_course_turf
 

February 16th, 2017Missing weather data

All air temperature data has been accounted for now.