Please Note

The GDD models have only been “ground-truthed” in the Great Lakes region. Use of models outside of this region, including the North East, Great Plains and Transition Zones, should be used with caution. We do not recommend the GDD models we use for the mid/southern transition zone and southern states.

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Black Turfgrass Ataenius Egg Laying (GDD 50)
through Wed, Mar. 27. 2024

 

GDD Total: 15 (Base 50) through Wed, Mar. 27, 2024

  

Apple Valley, MN

       

Forecast »

Over

1400

Second Generation Egg Laying

1200

Hatch and Development

200

First Generation Egg Laying

150

Under

0

 

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2024 & 2023

2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 17° 29° 1 0 0 0 0
02-16 19° 1 0 0 0 0
02-17 27° 1 0 0 0 0
02-18 21° 35° 7 0 0 0 0
02-19 19° 42° 15 0 0 0 0
02-20 29° 44° 30 5 0 0 0
02-21 24° 48° 44 9 0 0 0
02-22 30° 50° 62 17 0 0 0
02-23 23° 36° 70 17 0 0 0
02-24 17° 46° 79 17 0 0 0
02-25 33° 50° 98 26 0 0 0
02-26 29° 64° 123 41 5 0 0
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 15° 50° 133 41 5 0 0
02-28 19° 133 41 5 0 0
02-29 11° 55° 145 42 5 0 0
03-01 35° 57° 169 56 9 0 0
03-02 32° 63° 194 72 15 0 0
03-03 41° 74° 229 97 30 7 2
03-04 30° 40° 243 100 30 7 2
03-05 24° 48° 256 104 30 7 2
03-06 27° 54° 275 113 30 7 2
03-07 34° 48° 294 122 30 7 2
03-08 25° 39° 304 122 30 7 2
03-09 21° 40° 312 122 30 7 2
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 18° 51° 325 124 30 7 2
03-11 34° 67° 354 143 38 8 2
03-12 42° 66° 386 165 50 12 2
03-13 39° 65° 415 185 60 14 2
03-14 45° 57° 445 204 69 15 2
03-15 32° 50° 464 214 69 15 2
03-16 35° 49° 484 224 69 15 2
03-17 24° 33° 491 224 69 15 2
03-18 22° 37° 498 224 69 15 2
03-19 34° 51° 518 234 70 15 2
03-20 18° 31° 521 234 70 15 2
03-21 25° 29° 526 234 70 15 2
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 26° 32° 533 234 70 15 2
03-23 16° 32° 535 234 70 15 2
03-24 26° 32° 542 234 70 15 2
03-25 32° 36° 555 236 70 15 2
03-26 22° 34° 561 236 70 15 2
03-27 17° 28° 561 236 70 15 2
03-28 32° 561 236 70 15 2
03-29 17° 43° 569 236 70 15 2
03-30 32° 42° 584 241 70 15 2
03-31 27° 45° 599 245 70 15 2
04-01 33° 42° 614 251 70 15 2
04-02 26° 46° 628 255 70 15 2
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 29° 53° 647 263 70 15 2
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 15° 37° 4 0 0 0 0
02-16 18° 4 0 0 0 0
02-17 -1° 27° 4 0 0 0 0
02-18 16° 36° 8 0 0 0 0
02-19 17° 33° 11 0 0 0 0
02-20 11° 35° 12 0 0 0 0
02-21 14° 12 0 0 0 0
02-22 14° 21° 12 0 0 0 0
02-23 19° 12 0 0 0 0
02-24 -10° 12 0 0 0 0
02-25 -1° 26° 12 0 0 0 0
02-26 32° 12 0 0 0 0
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 31° 35° 23 1 0 0 0
02-28 20° 37° 30 1 0 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 25° 37° 39 1 0 0 0
03-02 19° 28° 40 1 0 0 0
03-03 22° 38° 48 1 0 0 0
03-04 25° 36° 57 1 0 0 0
03-05 19° 38° 64 1 0 0 0
03-06 30° 36° 74 2 0 0 0
03-07 28° 37° 85 3 0 0 0
03-08 31° 34° 96 3 0 0 0
03-09 29° 33° 105 3 0 0 0
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 27° 32° 112 3 0 0 0
03-11 28° 31° 120 3 0 0 0
03-12 25° 32° 126 3 0 0 0
03-13 17° 28° 127 3 0 0 0
03-14 31° 127 3 0 0 0
03-15 26° 42° 139 5 0 0 0
03-16 24° 44° 151 7 0 0 0
03-17 23° 151 7 0 0 0
03-18 24° 151 7 0 0 0
03-19 38° 151 7 0 0 0
03-20 22° 38° 159 7 0 0 0
03-21 23° 40° 168 7 0 0 0
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 27° 39° 179 8 0 0 0
03-23 23° 35° 186 8 0 0 0
03-24 17° 41° 193 8 0 0 0
03-25 29° 42° 207 11 0 0 0
03-26 21° 40° 215 11 0 0 0
03-27 20° 37° 222 11 0 0 0
03-28 10° 34° 222 11 0 0 0
03-29 25° 222 11 0 0 0
03-30 11° 36° 223 11 0 0 0
03-31 33° 36° 236 14 0 0 0
04-01 25° 36° 244 14 0 0 0
04-02 23° 49° 258 18 0 0 0
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 32° 41° 273 22 0 0 0
04-04 34° 37° 286 26 0 0 0
04-05 25° 36° 295 26 0 0 0
04-06 19° 34° 299 26 0 0 0
04-07 21° 45° 310 27 0 0 0
04-08 37° 63° 338 45 8 0 0
04-09 47° 63° 372 68 21 5 0
04-10 44° 70° 407 93 36 12 2
04-11 52° 80° 451 127 60 28 13
04-12 59° 88° 502 169 92 52 32
04-13 59° 87° 553 210 123 75 50
04-14 56° 83° 601 247 150 94 64
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-15 39° 55° 626 263 156 94 64
04-16 31° 39° 639 266 156 94 64
04-17 31° 48° 656 273 156 94 64
04-18 30° 55° 677 284 156 94 64
04-19 37° 45° 696 293 156 94 64
04-20 37° 41° 713 300 156 94 64
04-21 33° 39° 727 304 156 94 64
04-22 31° 35° 738 305 156 94 64
04-23 30° 42° 752 309 156 94 64
04-24 32° 47° 770 316 156 94 64
04-25 31° 49° 788 324 156 94 64
04-26 31° 56° 809 336 158 94 64
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-27 48° 61° 842 359 170 99 64
04-28 42° 53° 868 374 176 99 64
04-29 37° 51° 890 386 178 99 64
04-30 37° 49° 911 397 179 99 64
05-01 41° 55° 937 413 185 99 64
05-02 39° 60° 964 431 193 99 64
05-03 36° 68° 994 451 203 101 64
05-04 49° 76° 1035 481 223 113 72
05-05 52° 63° 1070 507 239 121 74
05-06 54° 61° 1106 533 254 129 77
05-07 55° 70° 1146 563 274 141 84
05-08 52° 73° 1187 594 295 154 92
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-09 54° 66° 1225 622 313 164 97
05-10 55° 78° 1270 656 338 180 109
05-11 58° 73° 1313 690 362 196 119
05-12 62° 72° 1358 725 386 213 131
05-13 59° 68° 1399 756 408 226 139
05-14 50° 61° 1433 780 421 232 140
05-15 42° 70° 1467 804 435 238 141
05-16 52° 80° 1511 837 459 253 152
05-17 49° 67° 1547 864 475 262 155
05-18 56° 66° 1586 892 494 272 161
05-19 44° 59° 1615 912 503 274 161
05-20 42° 70° 1649 936 518 280 162
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-21 49° 77° 1690 967 538 293 170
05-22 55° 77° 1734 1001 562 309 181
05-23 59° 81° 1782 1039 590 329 196
05-24 55° 75° 1825 1072 614 344 206
05-25 56° 75° 1869 1105 637 359 216
05-26 51° 78° 1911 1138 660 374 226
05-27 51° 81° 1955 1172 683 390 237
05-28 54° 80° 2000 1207 708 407 249
05-29 63° 85° 2052 1249 741 431 268
05-30 63° 86° 2105 1292 773 456 288
05-31 64° 87° 2159 1335 807 481 308
06-01 69° 85° 2214 1380 842 508 331
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-02 69° 82° 2267 1424 876 534 351
06-03 66° 86° 2321 1468 910 560 372
06-04 67° 88° 2377 1513 945 587 395
06-05 66° 85° 2430 1557 979 613 415
06-06 69° 86° 2486 1602 1014 640 437
06-07 66° 79° 2536 1643 1044 663 455
06-08 62° 79° 2585 1681 1073 683 470
06-09 58° 83° 2633 1719 1101 703 486
06-10 61° 82° 2682 1759 1130 725 502
06-11 50° 69° 2719 1786 1148 734 506
06-12 50° 78° 2762 1818 1170 748 515
06-13 58° 85° 2811 1858 1200 770 532
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-14 59° 82° 2860 1896 1228 790 548
06-15 58° 72° 2903 1929 1251 805 557
06-16 49° 76° 2943 1959 1271 817 565
06-17 58° 83° 2991 1998 1299 838 580
06-18 66° 75° 3040 2036 1328 858 595
06-19 62° 89° 3093 2080 1361 884 616
06-20 69° 88° 3150 2126 1398 912 640
06-21 65° 89° 3205 2172 1433 940 662
06-22 67° 90° 3261 2218 1470 968 685
06-23 69° 89° 3318 2265 1506 997 709
06-24 69° 81° 3371 2308 1539 1022 729
06-25 63° 73° 3417 2344 1565 1040 742
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-26 64° 81° 3467 2384 1596 1062 759
06-27 60° 84° 3517 2424 1626 1084 776
06-28 68° 84° 3571 2468 1660 1110 797
06-29 65° 87° 3626 2512 1694 1136 818
06-30 65° 83° 3678 2554 1726 1160 838
07-01 68° 83° 3731 2598 1760 1186 858
07-02 66° 87° 3786 2643 1794 1213 880
07-03 69° 93° 3844 2691 1833 1243 905
07-04 66° 81° 3896 2733 1864 1267 924
07-05 65° 74° 3944 2770 1892 1286 939
07-06 55° 73° 3986 2803 1914 1301 948
07-07 53° 73° 4027 2834 1935 1314 956
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-08 55° 78° 4071 2868 1960 1330 967
07-09 54° 83° 4118 2904 1986 1348 981
07-10 67° 91° 4175 2952 2023 1378 1005
07-11 58° 74° 4219 2985 2047 1393 1016
07-12 61° 78° 4266 3022 2074 1412 1030
07-13 62° 85° 4317 3064 2106 1436 1048
07-14 63° 86° 4370 3107 2138 1461 1068
07-15 60° 80° 4418 3145 2166 1481 1083
07-16 57° 77° 4463 3180 2191 1498 1095
07-17 55° 72° 4504 3211 2213 1511 1103
07-18 56° 80° 4550 3247 2239 1529 1116
07-19 65° 86° 4604 3291 2272 1555 1137
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-20 63° 77° 4652 3328 2300 1574 1152
07-21 58° 81° 4699 3366 2328 1594 1166
07-22 60° 85° 4750 3406 2358 1616 1184
07-23 60° 85° 4800 3447 2389 1639 1201
07-24 63° 86° 4853 3490 2421 1664 1221
07-25 67° 92° 4910 3537 2459 1693 1245
07-26 68° 90° 4967 3584 2496 1722 1269
07-27 75° 94° 5030 3637 2538 1757 1299
07-28 70° 88° 5087 3684 2575 1786 1323
07-29 62° 80° 5136 3723 2605 1807 1339
07-30 60° 77° 5183 3760 2631 1826 1353
07-31 57° 82° 5231 3797 2659 1845 1367
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-01 62° 86° 5283 3839 2691 1869 1387
08-02 70° 89° 5340 3886 2728 1898 1411
08-03 70° 91° 5398 3935 2767 1929 1436
08-04 67° 87° 5454 3981 2802 1957 1459
08-05 71° 83° 5509 4025 2837 1983 1481
08-06 66° 74° 5557 4064 2865 2004 1496
08-07 64° 81° 5607 4104 2896 2026 1513
08-08 60° 82° 5656 4143 2925 2047 1529
08-09 63° 80° 5706 4182 2954 2068 1546
08-10 66° 77° 5755 4222 2984 2090 1562
08-11 64° 86° 5808 4265 3016 2115 1582
08-12 61° 80° 5857 4304 3045 2136 1598
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-13 63° 73° 5903 4340 3072 2154 1611
08-14 62° 68° 5946 4373 3094 2169 1621
08-15 54° 79° 5990 4407 3119 2185 1632
08-16 62° 84° 6041 4448 3150 2208 1650
08-17 62° 73° 6087 4484 3175 2226 1663
08-18 54° 78° 6131 4518 3199 2242 1674
08-19 68° 88° 6187 4563 3235 2269 1696
08-20 66° 78° 6237 4604 3265 2292 1714
08-21 64° 78° 6286 4642 3294 2312 1729
08-22 69° 96° 6346 4693 3335 2345 1757
08-23 79° 94° 6411 4748 3380 2382 1789
08-24 71° 87° 6468 4795 3417 2411 1813
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-25 69° 88° 6525 4841 3453 2439 1837
08-26 61° 73° 6570 4876 3478 2456 1849
08-27 54° 76° 6612 4909 3501 2471 1858
08-28 61° 84° 6663 4950 3531 2494 1876
08-29 64° 82° 6714 4990 3562 2516 1894
08-30 60° 78° 6761 5028 3589 2536 1908
08-31 58° 80° 6808 5065 3616 2555 1922
09-01 61° 88° 6861 5107 3649 2579 1942
09-02 69° 89° 6917 5154 3686 2608 1965
09-03 74° 95° 6980 5206 3728 2642 1995
09-04 74° 96° 7043 5260 3771 2678 2025
09-05 75° 89° 7103 5310 3812 2710 2052
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-06 60° 74° 7148 5345 3837 2727 2064
09-07 57° 64° 7186 5373 3855 2737 2069
09-08 49° 76° 7227 5404 3876 2750 2077
09-09 58° 75° 7272 5439 3900 2767 2089
09-10 59° 71° 7315 5472 3923 2782 2099
09-11 53° 72° 7356 5503 3944 2795 2107
09-12 55° 65° 7394 5531 3962 2805 2112
09-13 45° 66° 7427 5554 3976 2810 2112
09-14 50° 82° 7471 5588 3999 2826 2123
09-15 59° 71° 7514 5620 4022 2840 2133
09-16 53° 70° 7553 5650 4041 2852 2139
09-17 52° 71° 7593 5679 4061 2863 2146
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-18 52° 74° 7634 5711 4082 2877 2154
09-19 59° 82° 7682 5749 4111 2897 2169
09-20 57° 85° 7731 5788 4140 2918 2185
09-21 61° 82° 7781 5827 4169 2939 2201
09-22 62° 74° 7827 5863 4195 2957 2214
09-23 64° 73° 7873 5900 4221 2976 2228
09-24 62° 72° 7918 5935 4247 2993 2240
09-25 59° 64° 7958 5964 4266 3004 2247
09-26 60° 64° 7998 5995 4286 3017 2254
09-27 60° 71° 8041 6028 4310 3032 2264
09-28 62° 71° 8086 6063 4334 3049 2276
09-29 60° 75° 8131 6098 4360 3066 2288
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-30 68° 87° 8187 6144 4396 3094 2311

 

Latest Updates

March 18th, 2024Timing crabgrass preemergence applications in spring

Don't miss this update from from Kevin Frank regarding timing of crabgrass preemergence herbicides.


 

February 12th, 2024Welcome to the 2024 GDD Tracking Season

2024 might be the year that if you blinked you missed winter. We've already experienced some very unseasonably warm weather in February with temperatures in the 60's. Temperatures are remaining relatively mild but I wouldn't be surprised if winter resurfaced yet as we move through the rest of February and March. GDDTracker starts counting on February 15. Spring is typically the time of year when GDDTracker receives the most attention for alerting turfgrass managers of optimal application timing windows for suppressing annual bluegrass seedheads and crabgrass preemergence applications. However, there are many models you may find helpful throughout the season including the early season DMI timer and Smith-Kerns dollar spot prediction model. To learn about all the available models, click on the "About" tab at the top of the screen. Thanks for your continued support and use of GDDTracker and best wishes for a fantastic 2024!