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Japanese Beetle Adults Emerge, Breed and Feed (GDD 50)
through Tue, Mar. 31. 2026

 

GDD Total: 149 (Base 50) through Tue, Mar. 31, 2026

  

Richmond, IN

        

Forecast »

“Flashback” to 2025

3/28

3/29

3/30

3/31

4/1

4/2

4/3

4/4

4/5

4/6

4/7

4/8

4/9

Done

2701

Over

2151

Adult Emergence

950

Close

751

Under

0

 

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2025 & 2026

2026Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 34° 48° 19 9 0 0 0
02-16 31° 52° 38 18 0 0 0
02-17 34° 55° 61 31 2 0 0
02-18 49° 66° 96 56 18 8 3
02-19 49° 62° 130 80 32 13 3
02-20 33° 54° 151 91 33 13 3
02-21 27° 34° 160 91 33 13 3
02-22 22° 28° 162 91 33 13 3
02-23 19° 26° 163 91 33 13 3
02-24 18° 35° 167 91 33 13 3
02-25 34° 48° 187 101 33 13 3
02-26 30° 45° 202 106 33 13 3
2026Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 33° 55° 224 118 35 13 3
02-28 37° 55° 248 133 39 13 3
03-01 27° 36° 258 133 39 13 3
03-02 25° 35° 266 133 39 13 3
03-03 33° 49° 285 142 39 13 3
03-04 43° 55° 312 159 47 13 3
03-05 54° 61° 348 185 63 21 6
03-06 57° 74° 392 218 86 36 16
03-07 52° 65° 428 244 102 45 20
03-08 39° 57° 454 261 108 45 20
03-09 40° 66° 485 282 120 48 20
03-10 60° 72° 529 316 143 64 30
2026Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-11 35° 67° 558 335 153 65 30
03-12 30° 46° 574 341 153 65 30
03-13 39° 57° 600 357 159 65 30
03-14 31° 45° 616 363 159 65 30
03-15 39° 72° 649 386 172 70 31
03-16 23° 65° 672 398 174 70 31
03-17 14° 22° 672 398 174 70 31
03-18 19° 40° 679 398 174 70 31
03-19 33° 64° 706 415 181 70 31
03-20 47° 72° 744 443 198 80 35
03-21 41° 66° 775 464 210 83 35
03-22 43° 82° 815 494 230 95 42
2026Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-23 31° 41° 829 498 230 95 42
03-24 28° 50° 846 505 230 95 42
03-25 39° 65° 876 525 240 97 42
03-26 57° 80° 923 562 267 116 56
03-27 32° 53° 944 573 268 116 56
03-28 29° 45° 958 577 268 116 56
03-29 34° 63° 985 594 274 116 56
03-30 55° 72° 1026 625 296 130 65
03-31 61° 78° 1074 663 323 149 79
04-01 41° 71° 1108 687 337 156 81
04-02 40° 76° 1145 714 354 164 84
04-03 65° 78° 1194 753 383 185 100
2026Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-04 62° 74° 1240 789 409 203 113
04-05 39° 48° 1262 801 411 203 113
04-06 36° 54° 1285 814 414 203 113
04-07 28° 46° 1300 819 414 203 113
04-08 31° 64° 1325 834 419 203 113
04-09 48° 70° 1362 861 437 213 118
04-10 51° 73° 1402 891 456 224 124
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 31° 39° 13 3 0 0 0
02-16 22° 38° 21 3 0 0 0
02-17 7° 21° 21 3 0 0 0
02-18 7° 15° 21 3 0 0 0
02-19 11° 18° 21 3 0 0 0
02-20 5° 18° 21 3 0 0 0
02-21 16° 27° 21 3 0 0 0
02-22 12° 32° 21 3 0 0 0
02-23 20° 41° 30 3 0 0 0
02-24 32° 48° 48 11 0 0 0
02-25 35° 56° 71 24 4 0 0
02-26 31° 55° 93 36 5 0 0
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 38° 51° 115 48 8 0 0
02-28 31° 59° 138 61 10 0 0
03-01 21° 44° 149 62 10 0 0
03-02 15° 31° 149 62 10 0 0
03-03 22° 39° 158 62 10 0 0
03-04 37° 64° 186 80 19 1 0
03-05 33° 54° 208 92 20 1 0
03-06 30° 38° 220 94 20 1 0
03-07 30° 40° 233 97 20 1 0
03-08 31° 44° 248 102 20 1 0
03-09 33° 55° 271 115 22 1 0
03-10 35° 63° 298 132 30 1 0
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-11 44° 69° 332 156 44 7 2
03-12 35° 70° 363 177 55 10 2
03-13 36° 73° 396 200 67 15 2
03-14 49° 75° 435 229 87 26 8
03-15 54° 68° 474 258 106 37 14
03-16 34° 58° 498 272 110 37 14
03-17 31° 48° 516 280 110 37 14
03-18 39° 70° 548 302 123 42 14
03-19 54° 64° 585 329 140 51 18
03-20 31° 54° 606 340 140 51 18
03-21 25° 52° 622 346 140 51 18
03-22 35° 48° 641 355 140 51 18
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-23 31° 43° 656 360 140 51 18
03-24 35° 51° 677 371 141 51 18
03-25 36° 49° 698 382 142 51 18
03-26 27° 51° 715 389 142 51 18
03-27 35° 57° 738 402 145 51 18
03-28 47° 78° 779 433 166 63 26
03-29 61° 72° 824 468 191 80 38
03-30 54° 68° 862 496 209 91 43
03-31 36° 55° 886 510 212 91 43
04-01 31° 50° 904 518 212 91 43
04-02 42° 76° 941 545 229 100 47
04-03 50° 65° 976 570 245 107 49
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-04 46° 54° 1004 588 252 107 49
04-05 45° 59° 1034 608 263 109 49
04-06 35° 45° 1052 616 263 109 49
04-07 32° 52° 1072 626 263 109 49
04-08 25° 40° 1082 626 263 109 49
04-09 28° 43° 1096 630 263 109 49
04-10 40° 55° 1122 646 268 109 49
04-11 35° 43° 1139 653 268 109 49
04-12 31° 55° 1160 664 269 109 49
04-13 39° 60° 1187 681 277 109 49
04-14 52° 70° 1227 711 296 121 56
04-15 44° 53° 1253 727 302 121 56
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-16 34° 54° 1275 739 304 121 56
04-17 36° 64° 1303 757 312 121 56
04-18 54° 79° 1348 792 337 137 67
04-19 56° 71° 1389 823 359 151 76
04-20 46° 72° 1427 851 376 160 80
04-21 52° 69° 1465 879 394 171 86
04-22 43° 68° 1499 903 408 176 86
04-23 49° 77° 1540 934 429 189 94
04-24 51° 80° 1583 967 453 205 105
04-25 60° 69° 1626 1000 475 220 115
04-26 46° 62° 1658 1022 487 223 115
04-27 39° 65° 1688 1042 497 225 115
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-28 47° 78° 1729 1073 518 238 123
04-29 63° 75° 1776 1110 545 257 136
04-30 46° 70° 1812 1136 561 265 140
05-01 61° 71° 1856 1170 585 282 151
05-02 58° 73° 1900 1204 609 297 162
05-03 47° 58° 1930 1224 619 300 162
05-04 45° 57° 1959 1243 628 301 162
05-05 48° 60° 1991 1265 640 305 162
05-06 50° 68° 2028 1292 657 314 165
05-07 50° 73° 2067 1321 677 325 172
05-08 48° 68° 2103 1347 693 333 175
05-09 40° 64° 2133 1367 702 335 175
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-10 41° 74° 2169 1393 718 342 177
05-11 50° 78° 2211 1425 740 356 186
05-12 57° 71° 2253 1457 762 370 195
05-13 61° 73° 2298 1492 787 388 208
05-14 58° 72° 2341 1525 810 402 217
05-15 61° 83° 2391 1565 840 424 234
05-16 61° 81° 2440 1604 869 445 250
05-17 61° 67° 2482 1636 891 459 259
05-18 53° 71° 2522 1666 912 472 267
05-19 49° 74° 2562 1696 931 483 273
05-20 51° 61° 2596 1720 945 489 274
05-21 52° 62° 2631 1745 960 497 277
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-22 48° 57° 2661 1765 971 499 277
05-23 41° 63° 2691 1785 980 501 277
05-24 42° 67° 2724 1808 993 505 277
05-25 47° 63° 2757 1831 1006 510 277
05-26 45° 69° 2792 1856 1021 517 279
05-27 55° 63° 2829 1883 1038 527 283
05-28 54° 63° 2866 1910 1055 535 286
05-29 57° 70° 2907 1941 1076 548 295
05-30 56° 70° 2948 1972 1097 561 303
05-31 54° 70° 2988 2002 1117 573 310
06-01 42° 71° 3022 2026 1132 580 311
06-02 44° 78° 3062 2056 1151 591 317
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-03 57° 84° 3110 2094 1179 612 333
06-04 67° 84° 3163 2137 1212 637 353
06-05 67° 76° 3212 2176 1242 658 369
06-06 67° 78° 3263 2217 1272 680 386
06-07 64° 76° 3311 2255 1300 700 402
06-08 63° 74° 3358 2292 1327 719 415
06-09 61° 75° 3403 2327 1352 737 428
06-10 55° 72° 3445 2359 1374 750 437
06-11 55° 80° 3491 2395 1400 768 449
06-12 60° 82° 3540 2434 1429 789 465
06-13 68° 81° 3592 2476 1461 813 485
06-14 69° 77° 3643 2517 1492 836 503
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-15 64° 77° 3692 2556 1521 857 519
06-16 63° 78° 3740 2594 1550 878 534
06-17 69° 79° 3792 2636 1581 902 553
06-18 64° 84° 3845 2679 1614 926 572
06-19 66° 76° 3894 2718 1643 947 589
06-20 63° 81° 3944 2758 1673 969 606
06-21 67° 87° 3999 2803 1708 997 628
06-22 74° 89° 4059 2853 1748 1028 654
06-23 72° 91° 4118 2902 1787 1059 681
06-24 73° 91° 4178 2952 1827 1091 708
06-25 74° 88° 4237 3001 1866 1122 734
06-26 71° 87° 4294 3048 1903 1151 758
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-27 72° 87° 4351 3095 1941 1181 782
06-28 72° 86° 4408 3142 1977 1210 806
06-29 69° 80° 4461 3185 2010 1234 826
06-30 71° 83° 4515 3229 2045 1261 847
07-01 70° 81° 4569 3273 2078 1286 867
07-02 60° 82° 4618 3312 2107 1307 884
07-03 67° 86° 4672 3356 2142 1334 905
07-04 66° 88° 4727 3401 2176 1361 927
07-05 68° 89° 4783 3447 2213 1389 950
07-06 69° 88° 4840 3494 2249 1418 974
07-07 69° 82° 4894 3538 2283 1443 995
07-08 66° 84° 4947 3581 2316 1468 1015
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-09 67° 81° 4999 3623 2348 1492 1034
07-10 68° 86° 5054 3668 2383 1519 1056
07-11 67° 87° 5109 3713 2418 1547 1078
07-12 71° 86° 5166 3760 2455 1575 1102
07-13 69° 87° 5222 3806 2491 1603 1125
07-14 69° 84° 5276 3850 2525 1630 1146
07-15 68° 85° 5331 3895 2560 1656 1167
07-16 72° 83° 5386 3940 2595 1683 1190
07-17 70° 84° 5440 3984 2630 1710 1211
07-18 69° 80° 5493 4027 2662 1734 1231
07-19 65° 81° 5544 4068 2693 1757 1248
07-20 70° 80° 5597 4111 2726 1782 1269
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-21 67° 80° 5648 4152 2757 1805 1287
07-22 60° 81° 5697 4191 2786 1826 1303
07-23 61° 85° 5748 4232 2817 1849 1321
07-24 70° 90° 5806 4280 2855 1879 1346
07-25 73° 86° 5863 4327 2892 1909 1370
07-26 71° 87° 5920 4374 2929 1938 1394
07-27 73° 84° 5977 4421 2966 1966 1418
07-28 71° 84° 6032 4466 3002 1994 1440
07-29 70° 90° 6090 4514 3039 2024 1465
07-30 70° 89° 6148 4562 3077 2053 1490
07-31 66° 76° 6197 4601 3106 2074 1506
08-01 58° 73° 6240 4634 3129 2089 1516
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-02 56° 74° 6283 4667 3152 2104 1526
08-03 54° 78° 6327 4701 3176 2120 1537
08-04 59° 78° 6373 4737 3203 2139 1550
08-05 61° 80° 6422 4776 3231 2159 1566
08-06 63° 81° 6472 4816 3261 2181 1582
08-07 64° 85° 6524 4858 3293 2206 1602
08-08 65° 87° 6578 4902 3328 2232 1623
08-09 67° 87° 6633 4947 3363 2259 1645
08-10 68° 88° 6689 4993 3399 2287 1668
08-11 69° 88° 6746 5040 3435 2315 1692
08-12 68° 87° 6801 5085 3471 2343 1714
08-13 70° 82° 6856 5130 3505 2369 1736
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-14 66° 85° 6909 5173 3538 2394 1756
08-15 65° 88° 6964 5218 3573 2421 1778
08-16 68° 87° 7019 5263 3608 2448 1800
08-17 69° 84° 7074 5308 3643 2475 1822
08-18 67° 85° 7128 5352 3677 2501 1843
08-19 69° 87° 7184 5398 3713 2529 1866
08-20 67° 74° 7232 5436 3742 2550 1881
08-21 65° 72° 7279 5473 3768 2569 1895
08-22 59° 77° 7325 5509 3794 2586 1908
08-23 66° 79° 7375 5549 3825 2609 1925
08-24 59° 74° 7420 5584 3849 2625 1937
08-25 52° 69° 7459 5613 3868 2636 1942
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-26 48° 70° 7496 5640 3885 2645 1947
08-27 47° 72° 7533 5667 3902 2655 1951
08-28 52° 68° 7572 5696 3921 2665 1956
08-29 47° 73° 7609 5723 3939 2675 1961
08-30 47° 73° 7647 5751 3956 2684 1966
08-31 47° 75° 7686 5780 3975 2695 1972
09-01 49° 79° 7728 5812 3997 2709 1981
09-02 52° 80° 7772 5846 4022 2726 1992
09-03 54° 79° 7817 5881 4046 2742 2004
09-04 51° 69° 7855 5909 4065 2753 2009
09-05 49° 74° 7895 5939 4084 2764 2016
09-06 49° 69° 7932 5966 4101 2774 2020
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-07 47° 69° 7968 5992 4117 2782 2023
09-08 44° 71° 8004 6018 4133 2789 2026
09-09 47° 76° 8043 6047 4153 2801 2032
09-10 50° 79° 8086 6080 4175 2815 2042
09-11 53° 82° 8131 6115 4200 2833 2054
09-12 53° 82° 8177 6151 4226 2850 2067
09-13 54° 81° 8223 6187 4252 2868 2080
09-14 62° 86° 8274 6228 4284 2892 2098
09-15 57° 86° 8324 6268 4313 2913 2115
09-16 56° 85° 8372 6306 4341 2934 2130
09-17 57° 84° 8421 6345 4370 2954 2146
09-18 56° 86° 8470 6384 4399 2975 2162
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-19 58° 87° 8521 6425 4430 2998 2179
09-20 62° 86° 8573 6467 4462 3022 2199
09-21 66° 82° 8625 6509 4494 3046 2218
09-22 65° 70° 8671 6545 4520 3064 2231
09-23 63° 78° 8719 6583 4548 3085 2246
09-24 65° 73° 8766 6620 4575 3103 2260
09-25 62° 73° 8812 6656 4601 3121 2272
09-26 54° 76° 8855 6689 4624 3136 2282
09-27 54° 81° 8900 6724 4649 3153 2295
09-28 58° 86° 8950 6764 4679 3175 2312
09-29 58° 86° 8999 6803 4708 3197 2328
09-30 56° 83° 9047 6841 4736 3216 2343
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55

 

Latest Updates

February 16th, 2026Welcome to the 2026 GDD Tracking Season

Although Punxsutawney Phil saw his shadow predicting six more weeks of winter, GDDTracker will start counting on February 15. Spring is when GDDTracker receives the most attention for alerting turfgrass managers of optimal application timing windows for suppressing annual bluegrass seedheads and crabgrass preemergence applications. As spring turns to summer, there are several models that may be helpful throughout the season including the early season dollar spot DMI timer and the 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 successful 2026!


 

March 18th, 2024Timing crabgrass preemergence applications in spring

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


 

 

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