Progress 12/01/00 to 11/30/04
Outputs
The tufted hardgrass was identified as a particular problem in bermudagrass athletic fields. Over the course of the project (prior to the departure of the PI April 23, 2004), information was collected such as germination temperature, vernalization requirements, and morphological responses to management practices such as mowing. The conclusion of these studies resulted in the completion of a Graduate Stduent Masters program. Results have provided biological information enabling estimation of the future severity of the problem and base control strategies. Results have enabled the creation of the Best Management Practices (BMPs) and Integrated Pest Management (IPM) which has been delivered to various segments of the turfgrass industry.
Impacts
Research and extension activities surrounding turfgrass weed management and BMP/IPM is based upon: a) public demand for current and environmentally sound management strategies and b) a progressive approach to turf and landscape management, such that currently enigmatic problems in these areas are quickly resolved and so anticipated future restrictions in turf management can be effectively planned for.
Publications
- No publications reported this period
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Progress 01/01/03 to 12/31/03
Outputs
Tufted hardgrass is a trouble some winter annual grassy weed that has been identified as a particular problem in bermudagrass athletic fields. It thrives on compacted soil conditions common to heavily trafficked areas such as the center of fields used for football games. We have identified locations where this plant is a problem and have collected a sufficient quantity of seed to conduct a series of greenhouse trials. The function of these trials has been to further expand the supply of available seed and collect basic biological data on the species such as germination temperature, vernalization requirements, and morphological responses to management practices such as mowing. All trials have been appropriately replicated and are now slated for submission to an appropriate scientific journal. The conclusion of these studies has also resulted in the successful completion of a Masters program by the student coordinating these studies. Results over this two-year period of
research have provided a previously nonexistent base of biological information upon which we can both estimate the future severity of the problem and base control strategies. A field trial investigating control strategies for this weed has also been completed with 22 different herbicide treatments. Results have identified preliminary control strategies that are both effective and practical for athletic field managers who deal with this weed problem. Talks and presentations for use in promoting Best Management Practices (BMPs) and Integrated Pest Management (IPM) have been developed and delivered to various segments of the turfgrass industry (e.g. homeowners, golf course superintendents, commercial turf managers) at outlets such as Master Gardener training sessions, the Kansas Turfgrass Foundation professional conference, and the KSU Research and Extension conference. Continuously updating the Pest Management Guide for professional turf use will continue to represent a cooperative
effort with the KSU Departments of Plant Pathology and Entomology. The relocation of the KSU Turfgrass Extension position, effective June, 2003, to the research center in Olathe, KS will continue to be critical in both developing research pertinent to urban issues and amplifying the dissemination of information regarding the environmental impact of turfgrass management. Urban environmental research and the role of turf management in these environments is seen as a major priority by both the KSU Turfgrass Research team and the department. Our goals on this front will help establish KSU as a proactive research institution that sees these goals as a priority. As such, this cooperative research and extension effort will prove invaluable to the underlying information outlet programs mentioned above.
Impacts
Research and extension activities surrounding turfgrass weed management and BMP/IPM is based upon: a) public demand for current and environmentally sound management strategies and b) a progressive approach to turf and landscape management, such that currently enigmatic problems in these areas are quickly resolved and so anticipated future restrictions in turf management can be effectively planned for.
Publications
- No publications reported this period
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Progress 01/01/02 to 12/31/02
Outputs
Tufted hardgrass is a winter annual grassy weed identified as a particular problem in bermudagrass athletic fields. It thrives on compacted soil conditions common to heavily trafficked areas such as the center of fields used for football games. We have identified locations where this plant is a problem and have collected a sufficient quantity of seed to conduct a series of greenhouse trials. Trials have been to further expand the supply of available seed and collect basic biological data on the species such as germination temperature, vernalization requirements, and morphological responses to management practices. Quality results have been obtained and were summarized by a graduate student at both the annual Kansas Turf Foundation conference and at the American Society of Agronomy annual meeting, resulting in the published abstract: Harankhedkar, M.N. and M.J. Fagerness. Impact of turfgrass cultural practices on the development of tufted hardgrass. The trials
conducted last year are currently being repeated to substantiate results and new trials have been initiated to investigate biomass production characteristics of this weed species. Results over this two-year period will provide a base of biological information which we can estimate the future severity of the problem and base control strategies. A field trial. with 4 replicates, investigating control strategies for this weed has also been completed with 22 different herbicide treatments. Results have identified preliminary control strategies that are effective and practical for athletic field managers. Results have been summarized both regionally and nationally resulting in the published abstract. Evaluation of herbicides for control of tufted hardgrass. Field trials will continue to substantiate results and to investigate control strategies at multiple locations. Continued collaborative efforts with appropriate county agents are being used to determine additional athletic field
locations for subsequent testing. Other weeds featuring a limited base of control information for Kansas turfgrass managers include grassy sandbur, bindweed, and spurge have been targeted for location specific trials to help elucidate better control measures for the turfgrass market. Talks and presentations for use in promoting Best Management Practices (BMPs) and Integrated Pest Management (IPM) have been developed and delivered to various segments of the turfgrass industry (e.g. homeowners, golf course superintendents, commercial turf managers) at outlets such as Master Gardener training sessions, the Kansas Turfgrass Foundation professional conference, and the KSU Research and Extension conference. Release of the updated Pest Management Guide for professional turf use has been executed as a cooperative effort with the KSU Departments of Plant Pathology and Entomology. Urban environmental research and the role of turf management in these environments are seen as a major priority in
the coming years and our goals on this front will help establish KSU as a proactive research institution that sees these goals as a priority.
Impacts
Research and extension activities surrounding turfgrass weed management and BMP/IPM is based upon: a) public demand for current and environmentally sound management strategies and b) a progressive approach to turf and landscape management, such that currently enigmatic problems in these areas are quickly resolved and so anticipated future restrictions in turf management can be effectively planned for.
Publications
- No publications reported this period
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Progress 01/01/01 to 12/31/01
Outputs
Tufted hardgrass has been identified in athletic field locations and sampled for greenhouse trials. A sufficient quantity of seed has been collected to conduct a large scale planting in the greenhouse to both further expand the supply of available seed and collect basic biological data on the species such as germination temperature, vernalization requirements, and morphological responses to management practices such as mowing. Results will provide a previously nonexistent base of biological information upon which we can both estimate the future severity of the problem and base control strategies. A field trial has been initiated with 22 different herbicide treatments. The experiment has 4 replicates and will be conducted through spring 2002 to target a lesser number of treatments to pursue in greater detail for future greenhouse and field trials. A new Masters student has been assigned to the hardgrass project and her work will produce valuable breakthroughs in the
understanding of this weed problem. Continued work with appropriate county agents is still being used to determine additional athletic field locations for subsequent testing. Other weeds featuring a limited base of control information for Kansas turfgrass managers include grassy sandbur, bindweed, and spurge. All these have been targeted for location specific 2002 trials to help elucidate better control measures for the turfgrass market. Rough bluegrass has been established by itself and in mixed stands with tall fescue in both the greenhouse and in the field. Space at the Rocky Ford Turfgrass Research Center has been allocated for this project. A greenhouse screen of this weed against both herbicides and plant growth regulators in spring 2001 identified promising treatments to attempt in the field during the 2001 growing season. Results from this field screen have now been collected and are being used to assemble a treatment list for a more detailed greenhouse screen which focuses on
fewer materials and more on optimum rates of application. Results will allow subsequent field testing to focus upon timing and frequency of applied treatments to fine tune components of an overall weed management program, and basic population dynamics between each weed and tall fescue. Talks and presentations for use in promoting Best Management Practices (BMPs) and Integrated Pest Management (IPM) have been developed and delivered to various segments of the turfgrass industry (e.g. homeowners, golf course superintendents, commercial turf managers) at outlets such as Master Gardener training sessions, the Kansas Turfgrass Foundation professional conference, and the KSU Research and Extension conference. Release of the updated Pest Management Guide for professional turf use has been executed in 2001 as a cooperative effort with the KSU Departments of Plant Pathology and Entomology. Urban environmental research and the role of turf management in these environments is seen as a major
priority in the coming years. This research effort is greatly anticipated and will prove invaluable to the underlying information outlet program described above.
Impacts
Research and extension activities surrounding turfgrass weed management and BMP/IPM is based upon: a) public demand for current and environmentally sound management strategies and b) a progressive approach to turf and landscape management, such that currently enigmatic problems in these areas are quickly resolved and so anticipated future restrictions in turf management can be effectively planned for.
Publications
- No publications reported this period
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