Abstract
Abstract The experiments were conducted in the left rough of No 3 fairway at Blackhawk Golf Course, Westerville, OH. The turf was composed of approximately 70% Kentucky bluegrass and 30% crabgrass. Mowing height was 2.5 to 3 in. There was no measurable thatch. The predominant soil type was Alexandria-Cardington, characterized as a greyish brown, strongly acid, friable silt loam 8-12 in thick. Environmental conditions at application time were as follows: air temperature, 75°F; relative humidity, 30-40%; wind from the NW at 8-10 mph; and sunny.skies with a few scattered clouds. The soil was wet from previous irrigation. Ten treatments replicated 4 times were applied to 5 ft × 10 ft (1.5m × 3m) plots arranged in an RCB design. Liquid applications were made usJng a CO2, pressurized sprayer with three 9520 nozzles mounted on a 5 ft aluminum boom, operating at 25 psi with a 4 gal/1000 ft spray rate. Granular materials were applied with a 2 ft Gandy drop spreader. All treatments were irrigated with 0.25 in of water immediately after application on Sep 3. Pretreatments counts showed a range of 20-40 larvae/ft. The experimental plots were evaluated 28 DAT (Oct 28) by randomly sinking four 7,75 in diameter cylinders (ca. 0.33 f t) into the turf to a depth of 6 in and counting the number of viable larvae in the soil plugs.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
