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Kevin E. Kenworthy

Specialist

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Kevin E. Kenworthy

Orcid ID0000-0001-8944-7543

Specialist

Agronomy Profile

Publications

thumbnail for publication: La Grama Zoysia para Patios de Florida

La Grama Zoysia para Patios de Florida

J. Bryan Unruh, Marco Schiavon, Alex J. Lindsey, Kevin E. Kenworthy, L. E. Trenholm y A. Fernanda Arévalo Alvarenga

La grama zoysia se introdujo en los Estados Unidos desde Asia y proporciona un césped atractivo en gran parte de los Estados Unidos. En los últimos años han ingresado al mercado nuevos cultivares de grama zoysia con mejor resistencia a insectos, establecimiento acelerado y mejor rendimiento en general. Escrito por J. Bryan Unruh, Marco Schiavon, Alex J. Lindsey, Kevin E. Kenworthy, L. E. Trenholm, y A. Fernanda Arévalo Alvarenga, y publicado por el UF/IFAS Department of Environmental Horticulture, julio 2022.

thumbnail for publication: Bahiagrass for Florida Lawns

Bahiagrass for Florida Lawns

Marco Schiavon, J. Bryan Unruh, and Kevin E. Kenworthy

A UF/IFAS numbered Fact Sheet for Homeowner audience(s).

thumbnail for publication: Selecting a Turfgrass for Florida Lawns

Selecting a Turfgrass for Florida Lawns

A. J. Lindsey, Marco Schiavon, J. Bryan Unruh, and Kevin E. Kenworthy

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, controls erosion, filters pollutants, supplies oxygen, and decreases temperatures in urban settings. This publication is intended for Florida homeowners, landscape maintenance professionals, builders and developers, and Extension agents to help select the best turfgrass species for their situation. Florida turfgrasses vary widely in their adaptive abilities, so choose your turfgrass species wisely. This publication provides information and guidelines to assist in your selection.

thumbnail for publication: 2025 Cool-Season Forage Variety Recommendations for Florida

2025 Cool-Season Forage Variety Recommendations for Florida

M. Wallau, M. E. Mailhos, A. R. Blount, E. Rios, J. C. B. Dubeux, M. A. Babar, and K. E. Kenworthy

This publication provides the most up-to-date information on adapted cool-season forage varieties for our growing season. The recommendation of varieties is based on multi-location, multi-year cultivar evaluation experiments that may include trials in Florida, Georgia, Alabama, and other states.

thumbnail for publication: La Grama St. Augustine para Patios de Florida

La Grama St. Augustine para Patios de Florida

Laurie E. Trenholm, Marco Schiavon, J. Bryan Unruh, Travis W. Shaddox, Kevin E. Kenworthy, Carlos Balerdi y Henrique Mayer

A UF/IFAS numbered Fact Sheet for Homeowner audience(s). in support of UF/IFAS Extension program: Plant Systems

thumbnail for publication: Growing Turfgrass in the Shade

Growing Turfgrass in the Shade

A. J. Lindsey, J. Bryan Unruh, Kevin E. Kenworthy, and Marco Schiavon

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 lawn may have full sun, be heavily shaded throughout the day, or receive partial shade and sunlight. Many partially shaded landscapes provide enough sunlight to support healthy turfgrass; however, constant or heavy shade makes it difficult to maintain adequate turf quality. The amount of sunlight needed by lawn grasses varies by species and, in some cases, by cultivar within species. In areas that receive moderate amounts of shade, certain species and cultivars of grass persist, while other, less shade-tolerant species and cultivars rapidly decline. In these areas, choosing the right turfgrass species and cultivar is important. It is also important to follow specific management practices that can encourage better turfgrass performance in shade.

thumbnail for publication: Florida Turfgrass Identification

Florida Turfgrass Identification

Alex J. Lindsey, Claude J. Jean, Marco Schiavon, Kevin E. Kenworthy, and J. Bryan Unruh

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, leading to undesirable results. Turfgrass identification can be challenging due to the lack of inflorescence or seedheads at certain times in their life cycle or due to being mowed off. Thus, other plant characteristics are used to help with turfgrass identification.

thumbnail for publication: St. Augustinegrass for Florida Lawns

St. Augustinegrass for Florida Lawns

Laurie E. Trenholm, Marco Schiavon, J. Bryan Unruh, Travis W. Shaddox, and Kevin E. Kenworthy

St. Augustinegrass (Stenotaphrum secundatum [Walt.] Kuntze) is widely adapted to the warm, humid (subtropical) regions of the world. It is believed to be native to the coastal regions of both the Gulf of Mexico and the Mediterranean. St. Augustinegrass is the most commonly used lawn grass in Florida (Figure 1). This publication is intended for homeowners and turfgrass managers that manage St. Augustinegrass in the state of Florida.

thumbnail for publication: Zoysiagrass for Florida Lawns

Zoysiagrass for Florida Lawns

J. Bryan Unruh, Marco Schiavon, Alex J. Lindsey, Kevin E. Kenworthy, and L. E. Trenholm

Zoysiagrasses were introduced into the United States from Asia and provide attractive turf throughout much of the United States. In recent years, newer cultivars of zoysiagrass have entered the market with improved insect resistance, accelerated establishment, and better overall performance. This 8-page major revision of the Environmental Horticulture Department was written by J. Bryan Unruh, Marco Schiavon, Alex J. Lindsey, Kevin E. Kenworthy, and L. E. Trenholm.

thumbnail for publication: Florida Sod Inventory and Pricing Report—2025

Florida Sod Inventory and Pricing Report—2025

Alex J. Lindsey, Natasha Restuccia, J. Bryan Unruh, and Kevin E. Kenworthy

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 levels, prices, and markets for Florida. This publication is intended for sod producers and end users to evaluate sod production and availability in Florida.

thumbnail for publication: La Grama Bahía para Patios de Florida

La Grama Bahía para Patios de Florida

Marco Schiavon, J. Bryan Unruh, Kevin E. Kenworthy y Henrique Mayer

Esta publicación está destinada a propietarios de casas y encargados de céspedes que manejan grama Bahía en el paisaje de Florida. Esta es una publicación del UF/IFAS Environmental Horticulture Department. Los autores son Marco Schiavon, J. Bryan Unruh, Kevin E. Kenworthy, y Henrique Mayer. La traducción estuvo a cargo de Marco Schiavon.