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Winter Survival Of Experimental Bermudagrasses In The Upper Transition Zone, Mingying Xiang, Jack Fry, Yanqi Wu Jan 2019

Winter Survival Of Experimental Bermudagrasses In The Upper Transition Zone, Mingying Xiang, Jack Fry, Yanqi Wu

Kansas Agricultural Experiment Station Research Reports

A winter with very cold temperatures in 2017–2018 allowed for good separation of standard and experimental bermudagrasses for freezing tolerance. When evaluated in May 2018, survival of commonly used cultivars was: Tifway, 0%; Latitude 36, 20%; Northbridge, 25%. Some experimental progeny had up to 98% winter survival on the same rating date.


Evaluating Large Patch-Tolerant And Cold Hardy Zoysiagrass Germplasm In The Transition Zone, Mingying Xiang, Jack Fry, Megan Kennelly Jan 2019

Evaluating Large Patch-Tolerant And Cold Hardy Zoysiagrass Germplasm In The Transition Zone, Mingying Xiang, Jack Fry, Megan Kennelly

Kansas Agricultural Experiment Station Research Reports

More than 2,800 zoysiagrass progeny, all having a single parent in common that exhibited tolerance to large patch, were evaluated in several transition zone states for quality characteristics and large patch tolerance. From these evaluations conducted over several years, 10 progeny have been identified for further evaluation that have good quality and large patch tolerance that is superior to Meyer zoysiagrass.


Urban Lawn Microclimates Affect Reference Evapotranspiration, Kenton W. Peterson, Dale J. Bremer, Jack D. Fry Jan 2018

Urban Lawn Microclimates Affect Reference Evapotranspiration, Kenton W. Peterson, Dale J. Bremer, Jack D. Fry

Kansas Agricultural Experiment Station Research Reports

Grass reference evapotranspiration (ETo) obtained from weather stations in open locations is often used to estimate irrigation requirements of turfgrass in local or regional urban lawns. However, the environments of urban lawns are often altered by surrounding buildings, trees, etc., to form various microclimates that may alter evapotranspiration (ET). Our research, which placed weather stations in urban lawns and nearby open swards of turfgrass, revealed ETo was 41% lower in residential lawn microclimates than in nearby open turfgrass swards. Less ET within urban lawns than in nearby open swards suggests using standard historical weather data to estimate irrigation ...


Brown Patch Occurrence In A Zoysiagrass-Tall Fescue Polystand Compared To A Tall Fescue Monostand, Mingying Xiang, Jack D. Fry, Megan M. Kennelly Jan 2018

Brown Patch Occurrence In A Zoysiagrass-Tall Fescue Polystand Compared To A Tall Fescue Monostand, Mingying Xiang, Jack D. Fry, Megan M. Kennelly

Kansas Agricultural Experiment Station Research Reports

Research has demonstrated that polystands of zoysiagrass and tall fescue can be established successfully, with the potential to provide a high quality turfgrass stand with reduced inputs. Our objective was to determine whether mixing zoysiagrass with tall fescue will reduce brown patch severity while maintaining overall accept­able quality. Studies were established at the Rocky Ford Turfgrass Research Center in Manhattan, KS. In the split-plot design, natural infection by Rhizoctonia solani or a fungicide-treated control was the whole plot treatment factor and species (tall fescue monostand and the zoysiagrass/tall fescue mixture) were subplots. During July and August 2016 and ...


Evaluating Large Patch-Tolerant And Cold Hardy Zoysiagrass Germplasm In The Transition Zone, Mingying Xiang, Jack D. Fry, Megan M. Kennelly Jan 2018

Evaluating Large Patch-Tolerant And Cold Hardy Zoysiagrass Germplasm In The Transition Zone, Mingying Xiang, Jack D. Fry, Megan M. Kennelly

Kansas Agricultural Experiment Station Research Reports

A Zoysia japonica genotype, TAES 5645, that exhibited partial resistance to large patch in preliminary studies conducted by our collaborators at Texas A&M University, was used as a breeding parent at Texas A&M and crossed with 22 cold hardy zoysiagrasses, resulting in 2,858 progeny. These progeny were evaluated for cold hardiness and agronomic traits (establishment rate, overall quality, spring green up, leaf texture, and genetic color) in Manhattan, KS; West Lafayette, IN; and Dallas, TX; from 2012 to 2014. This report focuses on the Manhattan, KS, results. From this work, 60 progeny were identified for further evaluation in larger plots. In fall 2016, ‘Meyer’ (42% of plot area affected) had more large patch than all zoysiagrass progeny (0 to 23%). In spring 2017, Meyer had 33% large patch, higher than most progeny. Among this group of experimental zoysiagrasses, there appear to be promising progeny that have ...


Evaluating Zoysiagrass-Tall Fescue Mixtures In Kansas, Mingying Xiang, J. Fry, M. Kennelly Jul 2017

Evaluating Zoysiagrass-Tall Fescue Mixtures In Kansas, Mingying Xiang, J. Fry, M. Kennelly

Kansas Agricultural Experiment Station Research Reports

Water conservation is increasingly important when selecting turfgrasses. Zoysiagrass (Zoysia japonica), a C4 grass, is more drought resistant than C3 grasses. However, there is some resistance to the use of zoysiagrass in lawns and golf courses due to its extended dormant period when turf is brown. The objective of this study was to evaluate mowing height, tall fescue seeding rate and time for establishment of a mixed stand with seeded zoysiagrass. Seeding zoysiagrass and tall fescue together in June generally resulted in a less uniform mixture than seeding zoysiagrass in June and then seeding tall fescue in September. Tall fescue ...


Impact Of Zoysiagrass And Tall Fescue Seed Mixtures On Brown Patch Severity, Mingying Xiang, J. Fry, M. Kennelly Jul 2017

Impact Of Zoysiagrass And Tall Fescue Seed Mixtures On Brown Patch Severity, Mingying Xiang, J. Fry, M. Kennelly

Kansas Agricultural Experiment Station Research Reports

Earlier research has demonstrated that polystands of zoysiagrass and tall fescue can be established successfully, with the potential to provide a high-quality turfgrass stand with reduced inputs. Our objective was to determine whether mixing zoysiagrass with tall fescue will reduce brown patch severity while maintaining overall acceptable quality. Studies were established at the Rocky Ford Turfgrass Research Center in Manhattan, KS. In the split-plot design, natural infection by Rhizoctonia solani or a fungicide-treated control was the whole-plot treatment factor and species (tall fescue monostand and the zoysiagrass/tall fescue mixture) were subplots. During July and August 2016, when hot, humid ...


Development Of Cold Hardy, Large Patch Resistant Zoysiagrass Cultivars For The Transition Zone, Mingying Xiang, J. Fry, M. Kennelly Jul 2017

Development Of Cold Hardy, Large Patch Resistant Zoysiagrass Cultivars For The Transition Zone, Mingying Xiang, J. Fry, M. Kennelly

Kansas Agricultural Experiment Station Research Reports

A Z. japonica genotype TAES 5645 which exhibited resistance to large patch in preliminary studies conducted by our collaborators at Texas A&M University was used as a breeding parent there and crossed with 22 cold hardy zoysiagrasses, resulting in 985 progeny. These progeny were evaluated for cold hardiness and agronomic traits (establishment rate, overall quality, spring greenup, leaf texture, and genetic color) in Manhattan, KS; West Lafayette, IN; and Dallas, TX; from 2012 to 2014. This report focuses on the Manhattan, KS, results. From this work, 60 progeny were identified for further evaluation in larger plots. In fall 2016, ‘Meyer’ (42% of plot area affected) had more large patch than all zoysiagrass progeny (0 to 23%). The top-performing zoysiagrass progeny had little or no large patch present. Among this group of experimental zoysiagrasses, there appear to be promising progeny that have good winter ...


Evaluating Zoysiagrass-Tall Fescue Mixtures In Kansas, Mingying Xiang, J. Fry, M. Kennelly Jan 2016

Evaluating Zoysiagrass-Tall Fescue Mixtures In Kansas, Mingying Xiang, J. Fry, M. Kennelly

Kansas Agricultural Experiment Station Research Reports

Seeding zoysiagrass at 1 lb PLS/1,000 sq ft in June with subsequent seeding of tall fescue into established zoysiagrass in September at 8 lbs PLS/1,000 sq ft resulted in the best mixture of these two species.


Release Of Ksuz 0802 Zoysiagrass, J. Fry, Ambika Chandra Jan 2016

Release Of Ksuz 0802 Zoysiagrass, J. Fry, Ambika Chandra

Kansas Agricultural Experiment Station Research Reports

A new zoysiagrass cultivar, under the experimental designation KSUZ 0802, was released jointly by the Kansas Agricultural Experiment Station and Texas A&M AgriLife Research in 2015.


Nitrous Oxide Emissions And Carbon Sequestration In Turfgrass: Effects Of Irrigation And Nitrogen Fertilization (Year 1), R. Braun, D. Bremer, J. Fry Jan 2016

Nitrous Oxide Emissions And Carbon Sequestration In Turfgrass: Effects Of Irrigation And Nitrogen Fertilization (Year 1), R. Braun, D. Bremer, J. Fry

Kansas Agricultural Experiment Station Research Reports

In this study, annual nitrous oxide (N2O) emissions were greatest in urea and least in untreated (no N) among treatments. Differences were negligible due to irrigation treatment. Irrigation levels may be decreased further in the final year to induce slight stress on the low irrigation treatment. All fertilizer treatments maintained acceptable quality, however the controlled-release fertilizer resulted in more consistent visual quality ratings compared to urea and untreated. Urea fertilizer had higher peak fluxes after fertilization and overall annual emissions than polymer-coated N-fertilizer. Thus, controlled released N fertilizers, such as polymer-coated urea, in turfgrass systems could potentially help ...


Evaluating The Effects Of Simulated Golf Cart Traffic On Dormant Buffalograss And Turfgrass Colorants, E. Alderman, J. Hoyle, J. Fry, S. Keeley Jan 2016

Evaluating The Effects Of Simulated Golf Cart Traffic On Dormant Buffalograss And Turfgrass Colorants, E. Alderman, J. Hoyle, J. Fry, S. Keeley

Kansas Agricultural Experiment Station Research Reports

Percent green cover will ultimately decrease over time when traffic is applied to dormant buffalograss with turfgrass colorants. Data suggests that an additional five weeks of acceptable green cover can be achieved under high traffic situations when Endurant Premium is applied to dormant turf.


Preventative Control Of Brown Patch With Select Fungicides, E. Alderman, J. Reeves, J. Hoyle Jan 2016

Preventative Control Of Brown Patch With Select Fungicides, E. Alderman, J. Reeves, J. Hoyle

Kansas Agricultural Experiment Station Research Reports

Preventative applications of Velista and Heritage Action fungicides will decrease the percentage of brown patch observed in a perennial stand of tall fescue.


Development Of Cold Hardy, Large Patch Resistant Zoysiagrass Cultivars For The Transition Zone, Mingying Xiang, J. Fry, M. Kennelly Jan 2016

Development Of Cold Hardy, Large Patch Resistant Zoysiagrass Cultivars For The Transition Zone, Mingying Xiang, J. Fry, M. Kennelly

Kansas Agricultural Experiment Station Research Reports

TAES 5645, a Z. japonica genotype that exhibited resistance to large patch in preliminary studies, was used as a breeding parent and crossed with 22 cold hardy zoysiagrasses, resulting in 985 progeny. These progeny were evaluated for cold hardiness and agronomic traits (establishment rate, overall quality, spring greenup, leaf texture, and genetic color) in Manhattan, KS; West Lafayette, IN; and Dallas, TX; from 2012 to 2014. From this work, 60 progeny were identified for further evaluation in larger plots. During the 2015-2016 establishment year, experimental line 6102-47 showed good vigor and spring green up rate, which is comparable to ‘Meyer ...


Influence Of Simulated Golf Cart Traffic And Nitrogen Rate On Buffalograss Quality, E. Alderman, J. Hoyle, J. Fry, S. Keeley Jan 2015

Influence Of Simulated Golf Cart Traffic And Nitrogen Rate On Buffalograss Quality, E. Alderman, J. Hoyle, J. Fry, S. Keeley

Kansas Agricultural Experiment Station Research Reports

Application of 2 and 3 lb N/1,000 ft2 resulted in acceptable buffalograss quality when subjected to simulated golf cart traffic. Across all fertilizer treatments, traffic rates of 8 and 16 passes per week resulted in unacceptable quality ratings for the study duration.


Use Of A Handheld Thermal Torch As A Herbicide-Resistance Management Tool, J. Hoyle, J. Reeves, E. Alderman Jan 2015

Use Of A Handheld Thermal Torch As A Herbicide-Resistance Management Tool, J. Hoyle, J. Reeves, E. Alderman

Kansas Agricultural Experiment Station Research Reports

Handheld thermal torches could possibly become a tool to reduce glyphosate-resistant annual bluegrass populations. One month after treatment, 5- and 6-second handheld thermal heat treatments reduced annual bluegrass populations by 50 and 60%, respectively.


Combined Effects Of Topdressing, Cultivation, And Carfentrazone-Ethyl On Silvery-Thread Moss Infestation, Z. Raudenbush, S. Keeley Jan 2015

Combined Effects Of Topdressing, Cultivation, And Carfentrazone-Ethyl On Silvery-Thread Moss Infestation, Z. Raudenbush, S. Keeley

Kansas Agricultural Experiment Station Research Reports

The greatest reduction in silvery-thread moss (STM; Bryum argenteum Hedw.) cover was achieved when cultivation treatments were used in conjunction with carfentrazone.


Evaluation Of New Zoysiagrass Experimental Lines For Winter Hardiness And Turf Quality In The Transition Zone, R. Braun, J. Fry, M. Kennelly Jan 2015

Evaluation Of New Zoysiagrass Experimental Lines For Winter Hardiness And Turf Quality In The Transition Zone, R. Braun, J. Fry, M. Kennelly

Kansas Agricultural Experiment Station Research Reports

A total of 881 zoysiagrass progeny originating from parental crosses at Texas A&M AgriLife Research – Dallas were planted in 2012, and an additional 104 progeny were planted by Kansas State University researchers in 2013. Starting in 2013, grasses were rated visually on 10 occasions through 2014. These ratings occurred throughout the year to evaluate winter survival and six turf quality characteristics to identify those progeny best adapted to the Kansas site. In September 2014, the top 20 of the original 985 progeny were selected and returned to Texas A&M AgriLife Research, Dallas, Texas, for propagation.


Evaluation Of Experimental Zoysiagrasses In Southern Kansas, L. Parsons, J. Fry Jan 2015

Evaluation Of Experimental Zoysiagrasses In Southern Kansas, L. Parsons, J. Fry

Kansas Agricultural Experiment Station Research Reports

Kansas State University has been cooperating with Texas A&M AgriLife Research – Dallas to identify zoysiagrasses that are superior in quality to ‘Meyer,’ the industry standard, and that have equivalent or better freeze tolerance. Six of eight experimental crosses between select Zoysia cultivars were established in Wichita, Kansas, in 2009 and since that time have had consistently superior ratings in three or more measures.


Dormant Turfgrass Paint And Glyphosate Application Timing Effects On Annual Bluegrass And Tall Fescue Control, J. Hoyle, J. Reeves Jan 2015

Dormant Turfgrass Paint And Glyphosate Application Timing Effects On Annual Bluegrass And Tall Fescue Control, J. Hoyle, J. Reeves

Kansas Agricultural Experiment Station Research Reports

Excellent annual bluegrass control can be achieved with dormant glyphosate and glyphosate + Endurant treatments applied November through February. The addition of Endurant to glyphosate in early applications (November and December) increases tall fescue control.


Evaluation Of Colorants On ‘Sharpshooter’ And ‘Cody’ Buffalograss, R. Braun, J. Fry, M. Kennelly, D. Bremer, J. Griffin Jan 2015

Evaluation Of Colorants On ‘Sharpshooter’ And ‘Cody’ Buffalograss, R. Braun, J. Fry, M. Kennelly, D. Bremer, J. Griffin

Kansas Agricultural Experiment Station Research Reports

Turf colorants effectively enhanced green color of dormant buffalograss. Using a higher application rate or adding a midwinter application helped longevity of color. Colorants increased canopy temperatures more consistently than soil temperatures, which may encourage earlier spring greenup.


Evaluation Of Overseeding And Colorants On ‘Chisholm’ Zoysiagrass During Winter Dormancy, R. Braun, J. Fry, M. Kennelly, D. Bremer, J. Griffin Jan 2015

Evaluation Of Overseeding And Colorants On ‘Chisholm’ Zoysiagrass During Winter Dormancy, R. Braun, J. Fry, M. Kennelly, D. Bremer, J. Griffin

Kansas Agricultural Experiment Station Research Reports

Annual ryegrass overseeding into lawn-height zoysiagrass provided acceptable turf color for only four weeks. The colorant Green Lawnger provided a darker green and considerably longer duration of acceptable color as compared to the colorant Match Play (bermudagrass), which was lighter green on zoysiagrass. A single colorant application resulted in acceptable turf color for 7 to 24 weeks; a sequential midwinter application provided acceptable color until spring greenup.


Effects Of Home Value, Home Age, And Lot Size On Lawn Watering Practices Of Residential Homeowners, D. Bremer, S. Keeley, A. Jager Jan 2015

Effects Of Home Value, Home Age, And Lot Size On Lawn Watering Practices Of Residential Homeowners, D. Bremer, S. Keeley, A. Jager

Kansas Agricultural Experiment Station Research Reports

Lawn care and lawn watering practices of residential homeowners were significantly affected by home value and home age, but lot size was less a factor.


Influence Of Fertilizer Source And Rate On Buffalograss Divot Recovery, E. Alderman, J. Hoyle, J. Fry, S. Keeley Jan 2015

Influence Of Fertilizer Source And Rate On Buffalograss Divot Recovery, E. Alderman, J. Hoyle, J. Fry, S. Keeley

Kansas Agricultural Experiment Station Research Reports

Application of quick-release nitrogen fertilizer increased buffalograss divot recovery. A quick-release fertilizer at 1 lb N/1,000 ft2 resulted in 50% divot recovery 6.3 days quicker compared to the untreated control.


Influence Of Cultivation Practice And Mowing Height On Conversion Of Golf Course Rough From Tall Fescue To ‘Sharps Improved Ii’ Buffalograss, J. Reeves, J. Hoyle, D. Bremer, S. Keeley, J. Griffin Jan 2015

Influence Of Cultivation Practice And Mowing Height On Conversion Of Golf Course Rough From Tall Fescue To ‘Sharps Improved Ii’ Buffalograss, J. Reeves, J. Hoyle, D. Bremer, S. Keeley, J. Griffin

Kansas Agricultural Experiment Station Research Reports

Slit-seeding buffalograss provided the quickest (85% cover, 8 weeks after seeding) establishment of all the cultivation practices. Mowing height had no effect on establishment success.


Crabgrass Control In Spring Seeding Using Early And Late Combinations Of Prodiamine And Dithiopyr, J. Hoyle, J. Reeves Jan 2015

Crabgrass Control In Spring Seeding Using Early And Late Combinations Of Prodiamine And Dithiopyr, J. Hoyle, J. Reeves

Kansas Agricultural Experiment Station Research Reports

With less crabgrass pressure, the Kansas site showed an inhibitory effect of pre-emergent herbicides on spring tall fescue (Lolium arundinaceum) seeding and establishment. However, at the Nebraska site, greater crabgrass pressure showed a benefit of pre-emergent herbicide use in new spring seeding of tall fescue.


Late-Season Bermudagrass Control With Glyphosate, Fluazifop, And Mesotrione Combinations, J. Reeves, J. Hoyle, C. Thompson Jan 2015

Late-Season Bermudagrass Control With Glyphosate, Fluazifop, And Mesotrione Combinations, J. Reeves, J. Hoyle, C. Thompson

Kansas Agricultural Experiment Station Research Reports

All herbicide treatments at the Rocky Ford Research Center (RF) resulted in unacceptable control, as all plots resulted in 100% green bermudagrass cover by August 25, 2014. Any herbicide treatment combination that included glyphosate provided moderate or better control at Stagg Hill Golf Course (SH). Treatments not containing glyphosate showed no control throughout research trial.


2012 National Turfgrass Evaluation Program Tall Fescue Test: 2012 And 2013 Data, L. Parsons, M. Kennelly, J. Griffin, J. Hoyle Jan 2015

2012 National Turfgrass Evaluation Program Tall Fescue Test: 2012 And 2013 Data, L. Parsons, M. Kennelly, J. Griffin, J. Hoyle

Kansas Agricultural Experiment Station Research Reports

Tall fescue is the cool-season turfgrass best adapted for the transition zone because it tolerates drought and heat and has few serious insect or disease problems. It possesses a rather coarse leaf texture, lacks stolons, and has only very short rhizomes. Efforts to improve cultivar quality include selecting for finer leaf texture, rich green color, and better sward density while maintaining good stress tolerance and disease resistance. New introductions need regular evaluation to determine their long-range suitability for use in Kansas.


2012 National Turfgrass Evaluation Program Tall Fescue Test: 2014 Data, L. Parsons, M. Kennelly, J. Griffin, J. Hoyle Jan 2015

2012 National Turfgrass Evaluation Program Tall Fescue Test: 2014 Data, L. Parsons, M. Kennelly, J. Griffin, J. Hoyle

Kansas Agricultural Experiment Station Research Reports

A number of the cultivars included in the 2012 National Turfgrass Evaluation Program Tall Fescue Test performed well and showed good brown patch resistance in southern Kansas during the 2014 growing season.