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Aerification Effects On ‘Innovation’ Zoysiagrass Thatch And Quality, Jack Fry, Dani Mcfadden Jan 2021

Aerification Effects On ‘Innovation’ Zoysiagrass Thatch And Quality, Jack Fry, Dani Mcfadden

Kansas Agricultural Experiment Station Research Reports

When a thatch layer accumulates on turfgrass it can be detrimental to the stand. A field experiment was initiated to investigate aerification treatments and their influence on organic matter, quality, and color of ‘Innovation’ zoysiagrass that was sodded within the past year. Turfgrass that was intensely aerified had less organic matter content in the surface inch of the profile compared to turfgrass that was not aerified. Color was also enhanced in treatments receiving aerification compared to nonaerified turf, which may have been attributed to trending of higher nitrate content in aerified plots.


Selection Of New Zoysiagrass Genotypes For Golf Course Fairways, Greens, And Tees In The Upper Transition Zone, Manoj Chhetri, Jack Fry, Megan Kennelly Jan 2021

Selection Of New Zoysiagrass Genotypes For Golf Course Fairways, Greens, And Tees In The Upper Transition Zone, Manoj Chhetri, Jack Fry, Megan Kennelly

Kansas Agricultural Experiment Station Research Reports

A set of 70 experimental zoysiagrass genotypes along with three standards, ‘Meyer,' ‘Innovation,' and ‘KSUZ 1201,' were evaluated for turf performance in the northern transition zone. The genotypes were previously selected from a set of 935 progeny that resulted from pairwise crossings of cold-hardy zoysiagrass parents with fine-textured, under-utilized zoysiagrasses. All 70 progeny survived the winter of 2019–2020 and thus were evaluated based on their turf performance. The preference of selection was based first upon spring green up ratings, followed by leaf texture (finer preferred), vigor, turf quality, and wilt during dry down. A total of 20 best progeny ...


Using Ethephon For Seedhead Suppression Of ‘Innovation’ Zoysiagrass, Manoj Chhetri, Jack Fry, Megan Kennelly Jan 2021

Using Ethephon For Seedhead Suppression Of ‘Innovation’ Zoysiagrass, Manoj Chhetri, Jack Fry, Megan Kennelly

Kansas Agricultural Experiment Station Research Reports

The performance of ethephon (Proxy) on seedhead suppression of ‘Innovation’ zoysiagrass was evaluated during the 2019–2020 growing season in Manhattan, KS. Treatments evaluated Proxy applied in a single autumn application at 5 fl. oz./1,000 ft2 on multiple dates between August 28 and November 26, 2019. Seedhead suppression ranged from 15% (application on November 1) to 82% (applied on September 4). Dates between September 4 and October 3 were the optimum application window for ethephon application on Innovation zoysiagrass as seedhead suppression was at least 62% with minimal turf injury occurring.


Influence Of Herbicides And Irrigation On Tall Fescue Shoot And Root Growth, Dani Mcfadden, Jack Fry, Steve Keeley, Jared Hoyle Jan 2021

Influence Of Herbicides And Irrigation On Tall Fescue Shoot And Root Growth, Dani Mcfadden, Jack Fry, Steve Keeley, Jared Hoyle

Kansas Agricultural Experiment Station Research Reports

When turfgrass stands are under renovation, a common problem is removing weeds prior to seeding because seedling turf does not emerge and compete well with weeds that are present. However, most herbicide labels recommend waiting for a defined period of time prior to seeding. If seeding is done prior to the date prescribed on the herbicide label, seed germination and seedling growth may be inhibited. A greenhouse study was conducted to determine the effects of irrigation prior to seeding on seedling growth after herbicide application. Overall, irrigation had no influence on the impact of herbicides on shoot or root growth ...


Performance Of Kansas State University’S Cold And Large Patch-Tolerant Zoysiagrasses In The National Turfgrass Evaluation Program Test, Jack Fry, Manoj Chhetri Jan 2021

Performance Of Kansas State University’S Cold And Large Patch-Tolerant Zoysiagrasses In The National Turfgrass Evaluation Program Test, Jack Fry, Manoj Chhetri

Kansas Agricultural Experiment Station Research Reports

The National Turfgrass Evaluation Program (NTEP) Zoysia Test was planted in 2019 at the Kansas State University Olathe Horticulture Center, Olathe, KS. Since planting, three experimental genotypes developed at K-State (with cooperators noted below) have outperformed ‘Meyer’ in establishment rate, turf quality, drought tolerance, and fall color. Earlier research has demonstrated large patch tolerance in all three experimental genotypes.


2019 National Turfgrass Evaluation Program Bermudagrass Test: 2019–2020 Data, Linda Parsons, Jason Griffin Jan 2021

2019 National Turfgrass Evaluation Program Bermudagrass Test: 2019–2020 Data, Linda Parsons, Jason Griffin

Kansas Agricultural Experiment Station Research Reports

Kansas represents the northernmost region in the central United States where bermudagrass (Cynodon spp.) can be successfully grown as a perennial turfgrass. Historically, few cultivars that have both acceptable quality and adequate cold tolerance have been available to local growers. Because new introductions are continually being selected for improved hardiness and quality, both seeded and vegetative types need regular evaluation to determine their long-range suitability for use in Kansas.


Emergence And Growth Of Tall Fescue Seedlings After Postemergence Broadleaf Herbicide Application, Dani Mcfadden, Jack Fry, Steve Keeley Jan 2021

Emergence And Growth Of Tall Fescue Seedlings After Postemergence Broadleaf Herbicide Application, Dani Mcfadden, Jack Fry, Steve Keeley

Kansas Agricultural Experiment Station Research Reports

Effective weed control prior to seeding is essential for proper turfgrass establishment since competition from weeds can cause sward establishment to fail. Herbicides with multiple active ingredients from different chemical families could increase weed control efficacy, but hinder the establishment of newly seeded turf. Research trials were initiated in the fall of 2020 in Olathe and Manhattan, KS, to determine if tall fescue (Schedonorus arundinaceus) could be seeded earlier after application than stated on the herbicide labels. Overall, this study demonstrated that seeding between 0 to 14 days after an application of carfentrazone-ethyl + MCPP + 2,4-D + dicamba (SpeedZone), fluroxypyr + halauxifen-methyl ...


Laboratory Calibration Of The Spectrum Field Scout Tdr 300, W. Dyer, D. Bremer, P. Rossini, M. Stone, A. Patrignani Jan 2021

Laboratory Calibration Of The Spectrum Field Scout Tdr 300, W. Dyer, D. Bremer, P. Rossini, M. Stone, A. Patrignani

Kansas Agricultural Experiment Station Research Reports

Soil moisture sensors (SMSs) are a useful tool that aid in data-driven water management decisions. However, default factory calibrations can be inaccurate and soil-specific calibrations are often required to obtain higher accuracy in the determination of soil water storage and plant available water. In this study, we conducted a lab calibration for the Field Scout TDR 300, which is a popular SMS used in the turfgrass industry. Five soils of different soil textural classes were packed in containers with known soil moisture for the laboratory calibration. The logarithmic model best fit the data for the course- and fine-textured soils, with ...


2019 Kansas State University Industrial Hemp Dual-Purpose And Fiber Trial, Jason Griffin, Kraig Roozeboom, Lucas Haag, Michael Shelton, Clint Wilson, Tami Myers Jan 2020

2019 Kansas State University Industrial Hemp Dual-Purpose And Fiber Trial, Jason Griffin, Kraig Roozeboom, Lucas Haag, Michael Shelton, Clint Wilson, Tami Myers

Kansas Agricultural Experiment Station Research Reports

Hemp is a broad term used to describe the many varieties of Cannabis sativa L. that produce less than 0.3% tetrahydrocannabinol (THC). The crop is globally significant, but only recently allowed to be grown again in the United States. Varieties that have numerous industrial uses have been selected for improved fiber and grain production. However, there is no information available regarding adaptability or production of these varieties in Kansas.

In 2019, Kansans were allowed to apply for research licenses to grow industrial hemp. It was assumed the crop would grow well throughout Kansas since there are wild remnant populations ...


Water Savings And ‘Innovation’ Zoysiagrass Quality In Response To Irrigation Strategy, Manoj Chhetri, Jack Fry, Megan Kennelly, Dale Bremer, Jared Hoyle Jan 2020

Water Savings And ‘Innovation’ Zoysiagrass Quality In Response To Irrigation Strategy, Manoj Chhetri, Jack Fry, Megan Kennelly, Dale Bremer, Jared Hoyle

Kansas Agricultural Experiment Station Research Reports

Performance of ‘Innovation’ zoysiagrass was evaluated under four irrigation regimes: a) routine irrigation (1.2 inches weekly); b) evapotranspiration (ET)-based irriga­tion (60% of estimated ET); c) soil water sensor (SWS)-based irrigation; and d) no irrigation. The SWS-based irrigation method reduced water application by 72% and 56%, respectively, compared to routine or ET-based irrigation. Visual turf quality of turf receiving SWS-based irrigation remained above the minimal acceptable level throughout the study. Innovation zoysiagrass sustained acceptable quality for more than 21 days with no irrigation, and nonirrigated turf recovered fully within four weeks after irrigation treatments ceased and turf ...


2019 Kansas State University Industrial Hemp Cbd Variety Trial, Jason Griffin, Michael J. Shelton, Clint Wilson, Tami Myers Jan 2020

2019 Kansas State University Industrial Hemp Cbd Variety Trial, Jason Griffin, Michael J. Shelton, Clint Wilson, Tami Myers

Kansas Agricultural Experiment Station Research Reports

Hemp is a broad term used to describe the many varieties of Cannabis sativa L. that produce less than 0.3% tetrahydrocannabinol (THC). The crop is globally significant, but only recently allowed to be grown again in the United States. Varieties have been selected and are currently grown with a wide range of cannabinoid profiles. Cannabinoids are of interest for their putative medical and therapeutic role in humans and pets. Cannabidiol (CBD) and THC are the two cannabinoids of primary interest. THC is of interest because it determines whether the final product is considered hemp (0.3% THC). CBD is ...


Testing Label Restrictions On Seeding Timings Of Tall Fescue And Kentucky Bluegrass After Herbicide Application, Dani Mcfadden, Jared Hoyle, Steve Keeley, Zane Raudenbush Jan 2020

Testing Label Restrictions On Seeding Timings Of Tall Fescue And Kentucky Bluegrass After Herbicide Application, Dani Mcfadden, Jared Hoyle, Steve Keeley, Zane Raudenbush

Kansas Agricultural Experiment Station Research Reports

During a lawn renovation, weeds are often a major problem because they grow more aggressively than seedling turf. Turfgrass seedlings need starter fertilizer and plenty of water for proper establishment, which makes an ideal environment for weeds to thrive as well. With current herbicide label restrictions, there are limited weed control strategies during the critical establishment period. Research trials were initiated in the fall of 2019 in Manhattan, KS, to determine if tall fescue (Schedonorus arundinaceus) and Kentucky bluegrass (Poa pratensis) could be seeded into a stand at different intervals after herbicide application before restrictions on the label. The results ...


Water Requirements Of ‘Meyer’ Zoysiagrass For Survival And Recovery After Prolonged Drought, Mu Hong, Dale Bremer, Steve Keeley Jan 2020

Water Requirements Of ‘Meyer’ Zoysiagrass For Survival And Recovery After Prolonged Drought, Mu Hong, Dale Bremer, Steve Keeley

Kansas Agricultural Experiment Station Research Reports

Water restrictions on irrigation are generally not science-based and may cause irreversible damage to turfgrass or inadvertently waste water. The objectives of our study were to evaluate effects of minimum water applications to ‘Meyer’ zoysiagrass (Zoysia japonica Steud.) on 1) turfgrass performance during prolonged dry downs; and 2) survival and recovery thereafter. Zoysiagrass was watered with 0, 5, 10, 15, 20, 25, and 30% reference evapotranspiration (ET) replacement for two months in two consecutive summers under an automated rainout shelter (excluded all rainfall) near Manhattan, KS. Results indicated that irrigation at 20 to 30% ET slowed the decline in zoysiagrass ...


Evaluation Of Selected Large Patch-Tolerant Zoysia Spp. For Performance In Kansas, Manoj Chhetri, Jack Fry, Megan Kennelly Jan 2020

Evaluation Of Selected Large Patch-Tolerant Zoysia Spp. For Performance In Kansas, Manoj Chhetri, Jack Fry, Megan Kennelly

Kansas Agricultural Experiment Station Research Reports

Turf quality characteristics and large patch incidence of ten selected experimental zoysiagrass genotypes were evaluated during the 2018–2019 growing season in Manhattan, KS, and establishment rate of the same ten was evaluated in Olathe, KS. Although plots were inoculated with Rhizoctonia solani (AG 2-2 LP) in September 2018 in Manhattan, no large patch occurred. However, the genotypes showed vari­ability in turf performance measured by turf quality, spring greenup, fall color reten­tion, and genetic color. In Olathe, KS, at Shadow Glen Golf Club, the ten genotypes were planted on June 17, 2019. The range in visual ground coverage ...


Identification Of Cold-Hardy Zoysiagrass Genotypes For Tees And Greens In The Upper Transition Zone, Manoj Chhetri, Jack Fry, Megan Kennelly Jan 2020

Identification Of Cold-Hardy Zoysiagrass Genotypes For Tees And Greens In The Upper Transition Zone, Manoj Chhetri, Jack Fry, Megan Kennelly

Kansas Agricultural Experiment Station Research Reports

Since the summer of 2017, 1,376 experimental zoysiagrass genotypes have been evaluated for winter survival in Olathe, KS, in an attempt to identify high quality, fine-textured types that survive in Kansas. After planting 458 progeny in the field in August 2017, only 17 experimental progeny survived when evaluated in spring 2018 (4%). In 2018, those 17 survivors were included with a new planting of 918 experimental progeny. In spring 2019, it was determined that 70 genotypes survived (8%). The 70 surviving progeny were transferred to a new, adjacent plot area in June 2019 and they varied in leaf texture ...


2019 National Turfgrass Evaluation Program Bermudagrass Test: Establishment Data, Linda Parsons, Jason J. Griffin, Michael J. Shelton Jan 2020

2019 National Turfgrass Evaluation Program Bermudagrass Test: Establishment Data, Linda Parsons, Jason J. Griffin, Michael J. Shelton

Kansas Agricultural Experiment Station Research Reports

Kansas represents the northernmost region in the central United States where ber­mudagrass (Cynodon spp.) can be successfully grown as a perennial turfgrass. His­torically, few cultivars that have both acceptable quality and adequate cold tolerance have been available to local growers. Because new introductions are continually being selected for improved hardiness and quality, both seeded and vegetative types need regular evaluation to determine their long-range suitability for use in Kansas.


2017 National Turfgrass Evaluation Program Perennial Ryegrass Test: 2018 Data, Mingying Xiang, Jack Fry Jan 2019

2017 National Turfgrass Evaluation Program Perennial Ryegrass Test: 2018 Data, Mingying Xiang, Jack Fry

Kansas Agricultural Experiment Station Research Reports

More than 100 entries of perennial ryegrass were evaluated in the perennial ryegrass National Turfgrass Evaluation Program (NTEP) study in Manhattan, KS, in 2018. A broad variation occurred among entries. Several entries consistently ranked in the top 10 in quality from month to month.


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.


Thermal Imaging Detects Early Drought Stress In Turfgrass Utilizing Small Unmanned Aircraft Systems, Mu Hong, Dale J. Bremer, Deon Van Der Merwe Jan 2019

Thermal Imaging Detects Early Drought Stress In Turfgrass Utilizing Small Unmanned Aircraft Systems, Mu Hong, Dale J. Bremer, Deon Van Der Merwe

Kansas Agricultural Experiment Station Research Reports

Plots of fairway-height creeping bentgrass were watered differently to create a gradient of drought stress from severe deficit irrigation to well-watered, under an automatic rainout shelter in Manhattan, KS. Canopy temperature (Tc) measured by a small unmanned aerial system (sUAS) predicted drought stress approximately 5 days or more before drought symptoms were evident in either turfgrass visual quality (VQ) or percentage green cover (PGC). The ability of Tc to predict drought stress was comparable to the best spectral parameters acquired by sUAS on companion flights [i.e., near infrared (NIR) and GreenBlue VI], and slightly better than with spectral data ...


High And Low Management Input Regimes Result In Similar Net Carbon Sequestration Rates In Zoysiagrass Golf Course Fairway Turf, Ross C. Braun, Dale J. Bremer Jan 2019

High And Low Management Input Regimes Result In Similar Net Carbon Sequestration Rates In Zoysiagrass Golf Course Fairway Turf, Ross C. Braun, Dale J. Bremer

Kansas Agricultural Experiment Station Research Reports

This study was conducted from 2013–2016 to determine how irrigation and N fertilization may be managed to enhance carbon (C) sequestration in turf. In this study, the annual rate of change in soil organic carbon (ΔSOC) was measured under two management regimes, a high management input regime (HMI) and low man­agement input regime (LMI), in a ‘Meyer’ zoysiagrass (Zoysia japonica Steud.) golf course fairway.

Both management regimes maintained acceptable turf quality and at least 75% green cover during both summers. In both management regimes, soil organic carbon (SOC) increased after the 3.16-yr (1154-d) period indicating that C ...


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.


Minimal Water Requirements Of Cool-Season Turfgrasses For Survival And Recovery After Prolonged Drought, Mu Hong, Dale Bremer, Steve Keeley Jan 2019

Minimal Water Requirements Of Cool-Season Turfgrasses For Survival And Recovery After Prolonged Drought, Mu Hong, Dale Bremer, Steve Keeley

Kansas Agricultural Experiment Station Research Reports

Sodded tall fescue (TF) and Kentucky bluegrass (KBG) turfgrasses were exposed to prolonged drought at several levels of deficit irrigation from 0% to 50% of reference evapotranspiration (ET) within the first year of establishment. Tall fescue watered at 40% and 50% ET maintained minimally acceptable performance longer during the dry-down phases and recovered faster after rewatering than lower ET treatments. Tall fescue with no water input (0% ET) maintained minimally acceptable performance for about 5 weeks, which was longer than KBG watered at 50% ET, which remained acceptable for less than 3 weeks during the dry down. Although KBG watered ...


Herbicide And Application Timing Effects On Windmillgrass (Chloris Verticillata) Control, Nicholas Mitchell, Jared Hoyle Jan 2019

Herbicide And Application Timing Effects On Windmillgrass (Chloris Verticillata) Control, Nicholas Mitchell, Jared Hoyle

Kansas Agricultural Experiment Station Research Reports

Windmillgrass (Chloris verticillata Nutt.) populations commonly infest turfgrass systems in the midwest, which result in aesthetically unacceptable turfgrass stands. Research trials were initiated in 2017 and 2018, in Onaga and Junction City, KS, to determine windmillgrass control with various single herbicide applications at dif­ferent application timings. Pylex (topramezone) resulted in more than 80% wind­millgrass control 8 weeks after spring and summer application.


Influence Of Herbicide Combinations And Sequential Applications On Windmillgrass (Chloris Verticillata) Control, Nicholas Mitchell, Jared Hoyle Jan 2019

Influence Of Herbicide Combinations And Sequential Applications On Windmillgrass (Chloris Verticillata) Control, Nicholas Mitchell, Jared Hoyle

Kansas Agricultural Experiment Station Research Reports

Windmillgrass (Chloris verticillata Nutt.) populations commonly infest turfgrass systems in the midwest, which result in aesthetically unacceptable turfgrass stands. Pylex (topramezone) and Acclaim Extra (fenoxaprop) have resulted in fair control of windmillgrass with single applications. For adequate control of windmillgrass, a sequential application of Tenacity (mesotrione), three weeks after the initial application, is recommended. Additionally, studies have shown the addition of triclopyr to HPPD inhibitor herbicides increases windmillgrass control in a controlled environ­ment. Field experiments were initiated in 2018, at the Kansas State University Rocky Ford Turfgrass Research Center in Manhattan, KS, to determine the influence of herbicide combinations ...


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 ...


Extent Of Larval Populations Of Turfgrass Insect Pests At Rocky Ford Turfgrass Research Center At Manhattan, Ks, Raymond A. Cloyd Jan 2018

Extent Of Larval Populations Of Turfgrass Insect Pests At Rocky Ford Turfgrass Research Center At Manhattan, Ks, Raymond A. Cloyd

Kansas Agricultural Experiment Station Research Reports

Many insect pests have a larval or grub stage that resides belowground and feeds on turfgrass roots (Potter, 1998; Vittum et al., 1999; Held and Potter, 2012). The major belowground insect pests (white grubs) associated with turfgrass throughout Midwestern states that are present in Kansas include: May/June beetles (Phyllophaga spp), masked chafers (Cyclocephala spp), and bluegrass billbug (Sphenophorus parvulus) (Miller et al., 2013). However, there is limited information on the annual occurrence of these insect pests affiliated with the common turfgrass species planted in Kansas, including zoysiagrass (Zoysia japonica) and Kentucky bluegrass (Poa pratensis). Therefore, the objective of this ...


2013 National Turfgrass Evaluation Program Bermudagrass Test: 2013–2017 Summary Report, Linda R. Parsons, Michael J. Shelton, Jason J. Griffin, Jared A. Hoyle Jan 2018

2013 National Turfgrass Evaluation Program Bermudagrass Test: 2013–2017 Summary Report, Linda R. Parsons, Michael J. Shelton, Jason J. Griffin, Jared A. Hoyle

Kansas Agricultural Experiment Station Research Reports

Kansas represents the northernmost region in the central United States where bermudagrass can be successfully grown as a perennial turfgrass. Historically, few cultivars that have both acceptable quality and adequate cold tolerance have been available to local growers. Because new introductions are continually being selected for improved hardiness and quality, both seeded and vegetative types need regular evaluation to determine their long-range suitability for use in Kansas.


2013 National Turfgrass Evaluation Program Bermudagrass Test: 2017 Data, Linda R. Parsons, Michael J. Shelton, Jason J. Griffin, Jared A. Hoyle Jan 2018

2013 National Turfgrass Evaluation Program Bermudagrass Test: 2017 Data, Linda R. Parsons, Michael J. Shelton, Jason J. Griffin, Jared A. Hoyle

Kansas Agricultural Experiment Station Research Reports

Kansas represents the northernmost region in the central United States where bermudagrass can be successfully grown as a perennial turfgrass. Historically, few cultivars that have both acceptable quality and adequate cold tolerance have been available to local growers. Because new introductions are continually being selected for improved hardiness and quality, both seeded and vegetative types need regular evaluation to determine their long-range suitability for use in Kansas.


Herbicide And Application Timing Effects On Windmillgrass Control, Nicholas Mitchell, Jared Hoyle Jan 2018

Herbicide And Application Timing Effects On Windmillgrass Control, Nicholas Mitchell, Jared Hoyle

Kansas Agricultural Experiment Station Research Reports

Windmillgrass (Chloris verticillata Nutt.) populations commonly infest turfgrass systems in the midwest, which result in aesthetically unacceptable turfgrass stands. Research trials were initiated in 2017 in Onaga and Junction City, KS, to determine windmillgrass control with various single herbicide applications at multiple application timings (spring, summer, and fall). Data collection for research trials consisted of visual percent windmillgrass cover (0–100%), line intersect analysis on four-inch spacing, normalized difference vegetation index (NDVI) (0 to 1 scale), and windmillgrass seedhead counts. Initial observations resulted in greater windmillgrass control with summer applications compared to fall applications. Pylex (topramezome) resulted in 80% windmillgrass ...