We recently noticed some discolored turf on #5 tees. We immediately overnighted a sample of that turf, in the form of a cup cutter plug, with 3" of rootzone attached. The sample was sent to NC State University where it was evaluated by a plant pathologist under a microscope. Here is the report that was issued the next day.
| Plant Disease & Insect Clinic · Plant Pathology · Entomology See the PDIC website for information on fees and sample submission guidelines Main Menu (requires login) · plantclinic@ces.ncsu.edu |
| Sample Report |
| SAMPLE INFORMATION Please print a copy of this page for your records and to include when submitting a physical sample | ||
| Sample Number | 38358 | |
| Date Entered | 2021-05-21 15:08:53 | |
| Status | COMPLETE | |
| Host | Creeping Bentgrass (Agrostis stolonifera) | |
| Variety | ||
| Invoice Status | $0 NO_CHARGE (N/A) There is no charge for this sample. Samples fees may be waived for non-profit agencies and others. This policy is subject to change without notice. | |
| Collected By | CLIENT | |
| Date Collected | 2021-05-20 | |
| Host Site Type | GOLF COURSE: TEE | |
| Host Address | CLIENT | |
| Problem Type | DISEASE | |
| Expect Physical Sample | NO | |
| Disease Symptoms | ||
| Disease Distribution | ||
| Site Conditions | ||
| Disease Parts Affected | ||
| Disease Percent Affected | ||
| Insect Signs | ||
| Insect Doing | ||
| Insect Degree of Infestation | ||
| Comments | ||
| RESULTS | ||
| Sample Result #1 | ||
| Date Entered | 2021-05-21 | |
| Description | Spiral Nematode | |
| Pest | Spiral nematodes (Helicotylenchus sp./spp.) | |
| Sample Result #2 | ||
| Date Entered | 2021-05-21 | |
| Description | Anthracnose | |
| Pest | Anthracnose (Colletotrichum cereale) | |
| Findings | --- Lee Butler @ Fri May 21 2021 15:19:00 GMT-0400 (Eastern Daylight Time) --- Evidence of foliar anthracnose was detected in this sample of creeping bentgrass. The damage was primarily on older/senescent leaves. The turf in this area could be under some form of abiotic stress that's making it easier for the anthracnose to settle in on those leaves first and likely causing some discoloration and thinning. For more information about this disease, including control recommendations, please visit the following website: https://www.turffiles.ncsu.edu/diseases-in-turf/anthracnose-in-turf/ I also observed a few spiral nematodes in the root system, however that species tends to be harmless for the most part. If you've never submitted a nematode sample, it may worth doing so just to see which species you have and determine if any of them are high enough to warrant treatment. Those samples can be submitted to the NCDA - https://www.ncagr.gov/agronomi/uyrnem.htm If you have any questions, you can reach me at (919) 513-3878 or by email at lee_butler@ncsu.edu. For more information about turf diseases, please visit our website at | |
| CONTACTS | ||
| Client | Brian Stiehler / Highlands Country Club | |