It's that time of year again, late season grub management. Pam Bennett reported finding evidence of skunks or raccoons digging up grubs in turf. A quick check confirmed that there were many WHITE GRUBS just under the soil at the site. This week's Turf Tip Video also confirms that now is the time of year to be checking for and treating late season white grubs.
Joe Rimelspach reported that over the Labor Day weekend, gray leaf spot was active and confirmed in several locations in central and southern Ohio. This can be a very destructive disease to perennial ryegrass. If this disease is suspected and you would like confirmation send samples to the OSU Plant and Pest Diagnostic Clinic: http://ppdc.osu.edu .
Joe Boggs reported that he made a site visit last week to a golf course in southwest Ohio to investigate the sudden appearance of an abundance of moth egg masses. The tan colored egg masses appeared within a few days on sign posts, marker stakes, and hole marker flags. A close examination revealed that the masses consisted of one or more layers of tightly packed round eggs that were lightly "dusted" with tannish-brown, fluffy scales shed by the female moths as they laid the eggs.
Joe Rimelspach reported that turf pathologists are jumping for joy about the diversity of disease samples they have received, which could mean bad news for some lawn owners. The higher temperatures and humid, stormy weather has created conditions conducive to a slew of different turf diseases.
Joe Rimelspach and Todd Hicks, both with the OSU Department of Plant Pathology provided some excellent tips to ensure a successful establishment of renovation of a lawn in the buckeye state.
The 2014 OTF Turfgrass Research Field Day was a great combination of research findings and direct application of that knowledge to assist turfgrass managers to become better informed. From the golf courses to residential lawns, it was all covered and demonstrated out at the OTF/OSU Turfgrass facility.
Rust is a common fungal disease found on most species of grasses around the world. Rust can be found early spring through fall depending on the location. Yellow flecks on the leaf blades are the first signs of rust disease on turfgrass. The yellow flecks enlarge which cause the leaf epidermis to rupture and release yellow-orange powdery spores. These fungal spores easily get on shoes, mowers, and pets but are not harmful to humans or animals. In severe incidences, infected grass can thin and individual shoots may die.
Joe Rimelspach, Turfgrass Pathology Ohio State University Extension Specialist, mentioned to the assembled group of BYGLers that DOLLAR SPOT, pathogen Sclerotinia homoeocarpa, has been a continuous battle this year on turfgrass. Although responsible for creating an impressive array of brownish-tan, silver dollar sized polka-dots on susceptible turf; thankfully, this fungus only blights the turfgrass leaf tissues but it does not directly affect the roots or crowns.
Joe Rimelspach and Todd Hicks (OSU Department of Plant Pathology) provide a helpful review of turf health and how the recent cool weather is making turf management a little easier. They reported that anthracnose and dollar spot are still being sighted and samples are showing signs of mechanical damage. To view Joe and Todd's YouTube video report, click on the following weblink: http://www.youtube.com/watch?v=CyAcL1TotKg&feature=youtu.be
The range of weather challenges and current conditions of turfgrass this week across Ohio are pretty diverse and striking. Amy Stone reported that in the Toledo area, with the prevailing dry conditions, the turf has already shut down and gone into summer dormancy. To endure environmental extremes, like the lack of moisture and/or hot, sunny days with daytime temperatures in the low to mid-80F, cool season turf adopts the approach of avoidance!