The Lobenstein Scholarship Tournament is scheduled for Friday, October 2nd, 8 am at Columbia Country Club. This is the day before the SEC Opener for the Mizzou Tigers vs. the South Carolina Gamecocks, so come out and make a full weekend out of it.
The tournament will benefit the Lobenstein Fund, which has the sole purpose of annually warding two deserving MU undergraduates (one in Turfgrass Science and one in Horticulture Science & Design) $1000 scholarships. The event will be a 4-man scramble, and the field is limited to 72 players. Hole, prize and beverage sponsorships are also available.
More information is provided on the flyer below. To register, go to http://motoc.org/golf/. Hope to see you there!
Despite a brief foray into fall last weekend, September has been very warm and dry. Across the state, temperatures are 3 – 4 degrees above normal for the month, sparked mainly by a very summer-like start. As detailed below, these warm temperatures sparked a few unexpected summer problems in early September. Precipitation across the region has been sporadic. The west and southwest portion of the state have received above average rainfall due to a heavy rainfall event on September 7 and 8, while the rest of the state is below normal. Due to the lack of precipitation, some soils in the central portion of the state are cracking at the surface, and non-irrigated cool-season turfgrasses, tired and short-rooted after a long summer, are going into drought dormancy. Seeding and establishment efforts have been difficult, as supplemental irrigation has been required frequently over the last week to facilitate germination.
A cold front is slowly sliding to the west and hopefully will provide the central and eastern portion of the state some rain to remediate mild localized drought. Although we are set to cool off in the short-term (providing nice weekend football weather), the rest of September is forecasted for much of the same warm and dry weather pattern. As noted in the previous update, day length is thankfully getting shorter, with fall equinox (~ 12 hour daylength) occurring next week on September 23. Also, above-normal temperatures in September are the mid 80’s as opposed to the mid 90’s in June – August, so temperature at least shouldn’t put a huge damper on cool season turfgrass recovery. If the temperatures continue to be warm, however, it will be interesting if we approach some of the old records for hottest Septembers in Missouri.
Large Patch on Zoysia: Questions are beginning to flow in about application timing for large patch control in zoysiagrass. My political response is it depends… on how many applications one plans to make. If three applications are planned, the first should be made in the fall when 2” soil temperatures ~ 70°F (currently range from 75-78°F across the state) with the second made 21 – 28 days later. The third should be applied in the spring, sometime in April, in the period just prior to or just after zoysia green-up. If two applications are planned, rather than the common two fall fungicide applications, my current recommendation is one fall application made later in the season (early to mid October or when 2” soil temperatures are ~ 60 - 65°F) and one made in the spring. In extremely wet springs like this past one, some breakthrough occurred on zoysia stands that only received fall applications.
If only one application is feasible, the best timing for this application is in the spring rather than fall. Our research demonstrates more consistent efficacy from spring than fall applications during the spring symptom period. Spring symptoms are more important and conspicuous in Missouri than in the fall when the zoysiagrass will be soon entering winter dormancy anyway. For more information, click here for this previous update.
Spring Dead Spot on Bermudagrass: In the next week or so, spring dead spot control should also be on the minds of athletic field managers in the state. Spring dead spot, a soilborne disease, is more difficult to control, and when it sets in oftentimes requires a multi-year integrated strategy. In our most recent fungicide trials, Velista (penthiopyrad) applied at 0.5 - 0.7 oz/1000 sq ft twice in the fall (mid-September and mid-October) has provided very good control after a single year of application. Although not on the regular label, Velista has a section 2(ee) label for spring dead spot control.
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Extension Turfgrass Pathologist
University of Missouri