Shinsuke Agehara

0000-0002-6820-0821

Protected Culture for Vegetable and Small Fruit Crops: The Soilless Trench System

Shinsuke Agehara, Robert C. Hochmuth, and Bielinski M. Santos

Métodos para el establecimiento de trasplantes de fresas en Florida

Emmanuel Torres-Quezada, Lincoln Zotarelli, Vance M. Whitaker, y Shinsuke Agehara; traducido por Ricardo Gandini-Taveras

Protected Culture for Vegetable and Small Fruit Crops: Types of Structures

Shinsuke Agehara, Gary E. Vallad, and Emmanuel A. Torres-Quezada

A protective structure is defined as any structure designed to modify the environment in which plants are grown. Protective structures, such as greenhouses, screen houses, and tunnels, are known worldwide as production systems for high-quality vegetable and fruit crops. This 4-page fact sheet was written by Bielinski M. Santos, Gary Vallad, and Emmanuel A. Torres-Quezada, and published by the UF Department of Horticultural Sciences, July 2013.

Fertilization of Strawberries in Florida

Shinsuke Agehara and George Hochmuth

Strawberry is an important crop in Florida, produced as an annual crop on plastic-mulched beds with drip irrigation. The main production area is in west-central Florida, including Hillsborough, Polk, and Manatee counties. Fertilizer is becoming a more significant portion of strawberry production costs, hence, proper fertilizer management is important for minimizing production costs and maximizing yield and fruit quality, while minimizing potential negative impacts on the environment caused by leaching or runoff of excess fertilizer nutrients. This guide summarizes the recent history of strawberry fertilization research and presents the updated research-based fertilizer management recommendations for strawberry production in Florida.

Construcción del Sistema de Tutorado para Lúpulo y su Establecimiento en Florida

Shinsuke Agehara, Aleyda Acosta-Rangel, Zhanao Deng, Jack Rechcigl, and Simon Bollin; translated by Mariel Gallardo

Methods for Strawberry Transplant Establishment in Florida

Emmanuel Torres-Quezada, Lincoln Zotarelli, Vance M. Whitaker, and Shinsuke Agehara

'Florida Brilliance' Strawberry

Vance Whitaker, Natalia A. Peres, and Shinsuke Agehara

Managing Spider Mites in Florida Hops

Hugh Smith and Shinsuke Agehara

This publication is designed to provide information on managing spider mites on hops grown in Florida to hops growers, UF/IFAS Extension agents, and other crop protection professionals. Hops (Humulus lupulus L.) (Cannabinaceae), a new crop for Florida, has been studied at the UF/IFAS Gulf Coast Research and Education Center (GCREC) since 2016. A fall and spring crop have been cultivated each year, providing opportunity to observe pests and evaluate pest management strategies over several seasons. Spider mites (Trombidiformes: Tetranychidae) have been a consistent pest of hops at GCREC each season. Information on chemical and biological control is provided.

Postharvest Pruning Guide for Hops in Florida

Mariel Gallardo, Shinsuke Agehara, Christopher DelCastillo, and Jack Rechcigl

In Florida, hops have two growing seasons per year, and different pruning practices are recommended after each season. This article explains why, when, and how to prune hops in Florida. It is part of a series that examines the challenges and opportunities of hop production in Florida based on research at the UF/IFAS Gulf Coast Research and Education Center. Written by Mariel Gallardo, Shinsuke Agehara, Christopher DelCastillo, and Jack Rechcigl, and published by the UF/IFAS Horticultural Sciences Department; 3 pp.

Vegetable Production Handbook of Florida, 2025–2026 edition

Nicholas S. Dufault, Shinsuke Agehara, Ramdas Kanissery, and Xavier Martini, editors

See here for the full downloadable PDF of the 2025–2026 Vegetable Production Handbook of Florida, as well as front-matter information and links to each chapter.

Procedimientos para Cosechar Lúpulos en Producción a Pequeña Escala

Shinsuke Agehara, Christopher DelCastillo, Mariel Gallardo, Weining Wang, y Jack Rechcigl; traducido por Mariel Gallardo

Este artículo explica los procedimientos de cosecha de lúpulo para la producción a pequeña escala (generalmente hasta 5 acres). Este artículo es parte de una serie que examina los desafíos y las oportunidades para la producción de lúpulo en Florida con base en la investigación en el UF/IFAS Gulf Coast Research and Education Center (UF/IFAS GCREC). La audiencia prevista para este artículo incluye productores, asesores de cultivos certificados, consultores de cultivos y profesores de Extensión. Shinsuke Agehara, Christopher DelCastillo, Mariel Gallardo, Weining Wang, y Jack Rechcigl; traducido por Mariel Gallardo; 4 pp.

Chapter 1. Commercial Vegetable Production in Florida

Nicholas S. Dufault, Shinsuke Agehara, Ramdas Kanissery, and Xavier Martini

Chapter 1 of the Vegetable Production Handbook of Florida

'Florida Beauty' Strawberry

Vance M. Whitaker, Natalia A. Peres, and Shinsuke Agehara

A UF/IFAS numbered Fact Sheet. Published by Plant Systems

Prácticas de Manejo de Cultivo y Mano de Obra Empleadas para la Producción de Lúpulos en Florida

Shinsuke Agehara, Mariel Gallardo, Aleyda Acosta-Rangel, Zhanao Deng, Jack Rechcigl, Tianyuan Luo, y Qi Qiu; traducido por Mariel Gallardo

Este artículo describe las prácticas de manejo del cultivo y horas de mano de obra necesarios para la producción de lúpulo a pequeña escala en Florida con el objetivo de ayudar a los productores a tomar decisiones de inversión y de manejo de campo. This new 6-page publication of the UF/IFAS Horticultural Sciences Department was written by Shinsuke Agehara, Mariel Gallardo, Aleyda Acosta-Rangel, Zhanao Deng, Jack Rechcigl, Tianyuan Luo, and Qi Qiu, and translated by Mariel Gallardo.

Chapter 16. Strawberry Production

Vance M. Whitaker, Nathan S. Boyd, Natalia A. Peres, Johan Desaeger, Sriyanka Lahiri, and Shinsuke Agehara

Chapter 16 of the Vegetable Production Handbook of Florida

Useful Image-Based Techniques for Manual and Automatic Counting Using ImageJ for Horticultural Research

Lillian Pride and Shinsuke Agehara

A UF/IFAS numbered peer reviewed Fact Sheet. Published by Plant Systems

Guía de Poda Postcosecha para Lúpulos en Florida

Mariel Gallardo, Shinsuke Agehara, Christopher DelCastillo, y Jack Rechcigl; traducido por Mariel Gallardo

Este artículo explica por qué, cuándo y cómo podar el lúpulo en Florida. Además, es parte de una serie que examina los desafíos y oportunidades de la producción de lúpulo en Florida basada en la investigación en el Centro de Investigación y Educación de la Costa del Golfo UF/IFAS (UF/IFAS GCREC). A translation of HS1439, Postharvest Pruning Guide for Hops in Florida; written by Mariel Gallardo, Shinsuke Agehara, Christopher DelCastillo, and Jack Rechcigl; translated by Mariel Gallardo; published by the UF/IFAS Horticultural Sciences Department; 3 pp.

Selección y Preparación del Material de Trasplante para la Producción Exitosa de Lúpulos en Florida

Shinsuke Agehara, Aleyda Acosta-Rangel, Mariel Gallardo, y Gary Vallad

Lúpulo, un ingrediente esencial de la cerveza, tiene el potencial de desarrollarse como un cultivo alternativo viable en Florida. Este artículo es parte de una serie más grande que revisará los desafíos de la producción de lúpulo, basado en experiencias en nuestro campo de investigación en el UF/IFAS Gulf Coast REC. Written by S. Agehara, A. Acosta-Rangel, M. Gallardo, and G. Vallad, translated by M. Gallardo, and published by the UF/IFAS Horticultural Sciences Department.

Using Supplemental Lighting to Grow Hemp in Florida

J. Desaeger, J. Coburn, and S. Agehara

With the removal of hemp from the controlled substances list, hemp is now one of the emerging crops in Florida. There is limited information on how to grow this crop in Florida. Like hops, hemp is another recently introduced crop in the state, with one of the major yield-limiting factors of premature flowering induced by inadequate day length. This article provides guidelines for hemp growers in Florida on the use of supplemental lighting to control flowering and improve growth of hemp under Florida’s environmental conditions. Written by Johan Desaeger, Jacqueline Coburn, and Shinsuke Agehara, and published by the UF/IFAS Horticultural Sciences Department; 4 pp.

Chapter 2. Fertilizer Management for Vegetable Production in Florida

Guodong Liu, Eric H. Simonne, Kelly T. Morgan, George Hochmuth, Shinsuke Agehara, Rao Mylavarapu, Craig Frey, Pavlos Tsouvaltzis, and Xiaoying Li

Chapter 2 of the Vegetable Production Handbook of Florida

Choosing the Right Blackberry Cultivar in Subtropical Florida

Shinsuke Agehara, Syuan-You Lin, and Zhanao Deng

A UF/IFAS numbered peer reviewed Fact Sheet. Published by Plant Systems

Uso de Iluminación Suplementaria para Controlar la Floración de Lúpulos en Florida

Shinsuke Agehara; traducción por Mariel Gallardo

El lúpulo (Humulus lupulus L.) es uno de los cultivos emergentes en Florida. En Florida, el principal factor que limita el rendimiento es la floración prematura inducida por las insuficientes las horas de luz diarias. Este artículo proporciona recomendaciones para el uso de iluminación suplementaria en el control de floración del lúpulo en Florida. This new 5-page publication of the Horticultural Sciences Department is a translation of HS1365.

Cómo Determinar el Tiempo Óptimo para Cosechar Lúpulos

Shinsuke Agehara, Mariel Gallardo, Christopher Del Castillo, Weining Wang, y Jack Rechcigl; traducido por Mariel Gallardo

Este artículo explica cómo determinar el momento óptimo para cosechar el lúpulo. Es parte de una serie que examina los desafíos y las oportunidades de la producción de lúpulo en Florida con base en la investigación del UF/IFAS Gulf Coast Research and Education Center (UF/IFAS GCREC).

UF/IFAS Nutrient Management Recommendation Series: Strawberry

Shinsuke Agehara, Thomas Obreza, and Rao Mylavarapu

Nutrient management recommendations for strawberry are described according to the standard UF/IFAS recommendation format of 1) a calibrated soil test result; 2) target soil pH; 3) the "4Rs" of fertilizer management: rate, timing, placement, and source; and 4) water management factors.

A Summary of N and K Research with Strawberry in Florida

George Hochmuth and Ed Hanlon

Florida Edible Garden Plants: Hops (Humulus lupulus)

Brian J. Pearson

A UF/IFAS numbered Organism ID for Homeowner audience(s). in support of UF/IFAS Extension program: Urban Water

LED Light Increases Leaf Area and Root Length of Humulus lupulus (var. Tettnanger) In Vitro

Chi D. Nguyen, Dominic Vu, Heqiang Huo, and Brian Pearson

A UF/IFAS numbered peer reviewed Fact Sheet. Published by Plant Systems

Harvest Techniques for Hops (Humulus lupulus)

Sean Michael Campbell and Brian J. Pearson

A UF/IFAS numbered peer reviewed Fact Sheet. in support of UF/IFAS Extension program: Plant Systems

Process of Drying Post-Harvest Hops (Humulus lupulus) for Small-Scale Producers Using a Novel Drying Rig

Sean Campbell and Brian Pearson

A UF/IFAS numbered peer reviewed Fact Sheet for Commercial audience(s). in support of UF/IFAS Extension program: Farm Economics, entrepreneurship, and management