Rough bluegrass (Poa trivialis) is considered a major grassy weed on lawns, golf courses, and sports fields because of its invasive nature, patch-like growth pattern, and habit of going dormant in the summer. This non-native grass spreads by stolons (above ground stems) and grows in thick patches of light-green blades that arise from a dense, multi-layered mat of new and old stolons. The thick mat of stolons prevents the establishment and growth of preferred turf grasses within the patch.
Patch diseases have been a serious problem in many areas of Ohio this summer. Symptoms of NECROTIC RING PATCH (NRP) and SUMMER PATCH are very similar and both can occur at the same time; however, historically NRP has been the more common of the two in Ohio. The common symptom of NRP involves a ring of dead grass with a green center; however, at times there may be half circles or streaks of affected turf.
Joe Rimelspach, Turfgrass Pathology Ohio State University Extension Specialist, dropped a "red thread bombshell" on the assembled BYGL group stating RED THREAD, pathogen Laetisaria fuciformis, is not just related to a lack of nitrogen; although, that is most often what we assume is lacking in the turfgrass.
Small, round, colored pustules are popping up in turf and we call these prolific, protruding pustules SLIME MOLDS. Slime molds become much more visible during periods of warm, wet weather, because the slime molds migrate onto the surfaces of turfgrass leaves.
Joe Rimelspach, Turfgrass Pathology Ohio State University Extension Specialist, mentioned to the assembled group of BYGLers that RED THREAD, pathogen Laetisaria fuciformis, has not slackened its assault on lawns. Joe held forth on his favorite soapbox of turf diseaseology to try and help the assembled masses understand why this fungal disease continues to hang on!
Joe Rimelspach from the Department of Plant Pathology at Ohio State provides a detailed review of anthracnose, which has been popping up at courses throughout the region.
WHITE CLOVER (Trifolium repens) (a.k.a. 'Dutch' clover, 'Ladino' clover or 'New Zealand' white clover) is a cool-season perennial that grows in patches that can take over low-maintenance lawns (i.e. lawns that receive little to no fertilizer, little to no irrigation water, and/or are mowed to a height shorter than 2.5").
If your lawn is not as green as you would like, it may be in need of nitrogen. It is time to fertilize. Nitrogen is one of the nutrients that can be depleted as plants grow and reproduce; it needs to be replenished. The amount of nitrogen your lawn needs will depend on the type of grass and its environmental conditions.
Joe Rimelspach with the OSU Buckeye Turf team reported that there are three important lawn care maintenance tips for this time of the year; mow at the proper height, use a sharp blade, and mow frequently. As fast as the grass is growing at this time of the season it can be difficult to keep up with these recommendations however following these tips are important steps to establishing a healthier and thicker lawn.
Joe Rimelspach, Turfgrass Pathology Ohio State University Extension Specialist, mentioned to the assembled group of BYGLers that RED THREAD, pathogen Laetisaria fuciformis, has begun its assault on lawns. Joe held forth on his favorite soapbox of lawn diseases and helped everyone to understand why suddenly this fungal disease seems to appear out of nowhere.