J. Bryan Unruh
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View article: Effective Late-season Control of Doveweed (Murdannia nudiflora) with Mesotrione and Simazine Tank Mixes in Florida
Effective Late-season Control of Doveweed (Murdannia nudiflora) with Mesotrione and Simazine Tank Mixes in Florida Open
In recent years, doveweed [ Murdannia nudiflora (L.) Brenan] has rapidly expanded across the southeastern United States, thus becoming a major concern because of its difficult eradication, limited reliable herbicides, and declining efficac…
View article: Florida Sod Inventory and Pricing Report—2025
Florida Sod Inventory and Pricing Report—2025 Open
The University of Florida's Institute of Food and Agricultural Sciences (UF/IFAS) and the Turfgrass Producers of Florida conducted their first sod inventory and pricing survey. The purpose of the survey was to determine the sod inventory l…
View article: Selecting a Turfgrass for Florida Lawns
Selecting a Turfgrass for Florida Lawns Open
The lawn is an integral part of the landscape and provides many important benefits in our increasingly urbanized environment. A lawn not only elevates the land's aesthetic and economic value, but it also creates a recreational surface, con…
View article: Establishing Your Florida Lawn
Establishing Your Florida Lawn Open
This publication is intended for Florida homeowners and landscape maintenance professionals to help them successfully establish lawns. The two primary methods of establishing turfgrass are seed and vegetative propagation. Vegetative propag…
View article: Growing Turfgrass in the Shade
Growing Turfgrass in the Shade Open
Many landscapes have shaded areas that can drastically affect turfgrass growth depending on the duration and intensity of shade. The amount of shade present in a landscape varies over time as trees mature and seasons change. Portions of a …
View article: Registration of ‘XZ 14069’ zoysiagrass
Registration of ‘XZ 14069’ zoysiagrass Open
‘XZ 14069’ (Reg. no. CV‐297, PI 707001), marketed as “LOBO”, is a fine‐textured zoysiagrass ( Zoysia spp.) hybrid with excellent turfgrass quality and stress tolerance developed and released by the North Carolina Agricultural Research Serv…
View article: The suitability of polyethylene glycol for inducing drought symptoms in zoysiagrass
The suitability of polyethylene glycol for inducing drought symptoms in zoysiagrass Open
Water use is the greatest challenge facing the turfgrass industry. Breeding for drought responses is complicated by variable environmental factors, and it can be difficult to determine if selections are based on drought avoidance or drough…
View article: Manejo de Malezas para Patios de Florida
Manejo de Malezas para Patios de Florida Open
Este documento es una herramienta de apoyo para una audiencia no profesional, que incluye propietarios de viviendas en Florida y a público entusiasta de las plantas, con el objetivo de gestionar de manera efectiva la invasión de malezas en…
View article: Herbicidas para céspedes: modo de acción y manejo de resistencia
Herbicidas para céspedes: modo de acción y manejo de resistencia Open
Este documento está diseñado como una herramienta para profesionales del césped, productores de tepes, superintendentes en campos de golf, encargados de campos atléticos y deportivos, paisajistas y especialistas en Extensión, con el objeti…
View article: Urban Landscapes: Turfgrass Benefits
Urban Landscapes: Turfgrass Benefits Open
Recently, turfgrass has received scrutiny from the public in many parts of the United States due to the misconception that it has limited benefits and has negative impacts on the environment. These negative impacts are often associated wit…
View article: <i>Poa annua</i> ecology, biology, and integrated weed management practices in turfgrass
<i>Poa annua</i> ecology, biology, and integrated weed management practices in turfgrass Open
Poa annua L. is one of the most widespread and troublesome weeds of turfgrass. It persists as both an annual and perennial and is adaptable to almost any static maintenance regime, including adaptation to mowing heights and evolution of he…
View article: Florida Turfgrass Identification
Florida Turfgrass Identification Open
Proper turfgrass identification is required before considering any lawn maintenance practices. Each of the different grasses used for Florida lawns have different management and without accurate identification, mismanagement could occur, l…
View article: Investigating multi‐trophic effects of St. Augustinegrass cultivar blends in the Southeastern United States
Investigating multi‐trophic effects of St. Augustinegrass cultivar blends in the Southeastern United States Open
Warm‐season turfgrasses, including St. Augustinegrass [ Stenotaphrum secundatum (Walt.) Kuntze], are produced and installed as monocultures of single cultivars. Recent research indicates that blending St. Augustinegrass cultivars can incre…
View article: Promoting Turf Recovery Following a Hurricane
Promoting Turf Recovery Following a Hurricane Open
Devastation from hurricanes can cause multiple problems for turfgrass managers, sod producers, and homeowners. Damage may include visible factors such as prolonged periods of standing water, uprooted trees, shading and obstruction from dem…
View article: Maximizing genetic gains across agronomic and consumer preference traits in St. Augustinegrass breeding
Maximizing genetic gains across agronomic and consumer preference traits in St. Augustinegrass breeding Open
Combining large multi‐environment trial (MET) datasets to decide which genotypes to move forward in the breeding process can be challenging, especially when dealing with negatively correlated traits. The use of a selection index has long b…
View article: Molecular analysis of St. Augustinegrass cultivar mixtures composition over time and latitude
Molecular analysis of St. Augustinegrass cultivar mixtures composition over time and latitude Open
St. Augustinegrass [ Stenotaphrum secundatum (Walt.) Kuntze] is commonly planted in residential and commercial landscapes as a cultivar monoculture predisposing this lawn to pest invasion and high‐maintenance inputs. Researchers have sugge…
View article: La grama centípeda (césped ciempiés) para patios de Florida
La grama centípeda (césped ciempiés) para patios de Florida Open
La grama centípeda, centipedegrass (en inglés) o pasto ciempiés (Eremochloa ophiuroides [Munro] Hack.) se introdujo en los Estados Unidos desde el sureste asiático en 1916. Este pasto está bien adaptado al clima y los suelos del centro y n…
View article: Multi‐state survey to identify suspected resistance to four herbicides and one plant growth regulator in <i>Poa annua</i>
Multi‐state survey to identify suspected resistance to four herbicides and one plant growth regulator in <i>Poa annua</i> Open
Plain Language Summary Poa annua is a troublesome weed in turfgrass areas such as golf courses, athletic fields, lawns, and sod farms. Controlling P. annua is made more difficult by the growing problem of herbicide resistance, the inherite…
View article: Centipedegrass for Florida Lawns
Centipedegrass for Florida Lawns Open
Centipedegrass is a commonly grown, low input turfgrass used in landscapes throughout the state of Florida. This factsheet provide science based information on the culture and management of centipedegrass including mowing, irrigation, pest…
View article: Effects of Urban Fertilizer Ordinances on Water Quality
Effects of Urban Fertilizer Ordinances on Water Quality Open
Originating from environmental or humans sources, too much nitrogen (N) and/or phosphorus (P) in water bodies can degrade water quality. In an attempt to reduce the contribution of human sources of N and P to local waters, urban fertilizer…
View article: Registration of ‘FSA1602’ St. Augustinegrass
Registration of ‘FSA1602’ St. Augustinegrass Open
‘FSA1602’ (Reg. no. CV‐294, PI 704119) hybrid St. Augustinegrass [ Stenotaphrum secundatum (Walter) Kuntze] was developed and released by the Florida Agricultural Experiment Station, University of Florida, in 2018. FSA1602 has a distinct o…
View article: Nutrition of Florida lawns when summer fertilizer blackout period is enforced
Nutrition of Florida lawns when summer fertilizer blackout period is enforced Open
In Florida, multiple counties restrict the application of N to turfgrass and landscapes during the summer rainy season. These summer fertilizer blackout periods could impact turfgrass quality and the functionality of warm‐season turfgrass …
View article: Extension event attendance increases adoption of weed management practices by sports field managers
Extension event attendance increases adoption of weed management practices by sports field managers Open
Data from a national survey of 348 U.S. sports field managers were used to examine the effects of participation in Cooperative Extension events on the adoption of turfgrass weed management practices. Of the respondents, 94% had attended at…
View article: Using survey results to direct future extension efforts in annual bluegrass management
Using survey results to direct future extension efforts in annual bluegrass management Open
Controlling unwanted annual bluegrass ( Poa annua L.) in desirable turfgrass species often relies heavily on herbicide use. As a result, increasing populations of herbicide‐resistant annual bluegrass have become a concern. In 2018, a unive…
View article: Autonomous Compared with Conventional Mower Use on St. Augustinegrass Lawn Quality
Autonomous Compared with Conventional Mower Use on St. Augustinegrass Lawn Quality Open
Autonomous (i.e., robotic) mowers have recently garnered interest with the public and within the turfgrass industry. However, limited research has been conducted on their use for mowing warm-season turfgrasses. An experiment was conducted …
View article: Turfgrass Use on US Golf Courses
Turfgrass Use on US Golf Courses Open
Golf facilities account for 2.3 million acres in the United States. Numerous turfgrass species are managed on US golf facilities, but golf facilities may change turfgrasses depending on numerous variables. Knowing which turfgrasses are gro…
View article: Evaluation of Different Aerification Methods for Ultradwarf Hybrid Bermudagrass Putting Greens
Evaluation of Different Aerification Methods for Ultradwarf Hybrid Bermudagrass Putting Greens Open
Aerification and topdressing are important cultural management practices that help prevent organic matter accumulation and soil compaction in golf greens. However, these practices result in surface disruption and decreased putting quality …
View article: Land-use and Energy Practices on US Golf Courses
Land-use and Energy Practices on US Golf Courses Open
Golf facilities require a large area and consume energy to operate. As such, golf facilities have the potential to influence ecosystems and contribute to national and regional energy demands. The objective of this study was to document the…
View article: El Riego de los patios de Florida
El Riego de los patios de Florida Open
El riego es una de las prácticas culturales más importantes para nuestro césped. Debido a que el agua es un recurso limitado y es vital para la salud del césped, es muy importante que se realice correctamente. Esta publicación está destina…
View article: Survey of Pest Management Practices on US Golf Courses
Survey of Pest Management Practices on US Golf Courses Open
Integrated pest management (IPM) is an important component of golf course maintenance and includes conventional chemical pesticide use as well as nonchemical cultural management practices. Determining how frequent pest management practices…