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EDIS Update

New and revised publications in the EDIS publications database

    Winterstar(TM) ('FL 05-107') Strawberry (HS1198)

    April 13th, 2012
    Topic(s):Crops

    Figure 1. Plants and fruit of Winterstar(TM)<br /> ('FL 05-107') strawberry in late March, 2010 in Dover, FLWinterstar(TM) (‘FL 05-107′) is a new strawberry cultivar released from the University of Florida in 2011, originating from a 2005 cross between ‘Florida Radiance’ and ‘Earlibrite’. Data from several years of trials were used to generate this information and recommendations to help growers obtain optimal performance in West Central Florida. This 3-page fact sheet was written by Vance M. Whitaker, Craig K. Chandler, Bielinski M. Santos, and Natalia A. Peres , and published by the UF Department of Horticultural Sciences, April 2012.
    http://edis.ifas.ufl.edu/hs1198

    University of Florida Strawberry Cultivars (HS1199)

    April 13th, 2012
    Topic(s):Crops

    Figure 1. Characteristic fruit of 'Strawberry Festival' strawberryThis 4-page fact sheet gives basic descriptions and suggested practices for University of Florida strawberry cultivars that are of commercial importance to the Florida strawberry industry. Descriptions are the result of research trials, field observations, and consultation with growers. They are specific to West Central Florida and may not be applicable to other regions where these cultivars are grown. Written by Vance M. Whitaker, Bielinski M. Santos, and Natalia A. Peres, and published by the UF Department of Horticultural Sciences, April 2012.
    http://edis.ifas.ufl.edu/hs1199

    Are Phosphorous and Phosphoric Acids Equal Phosphorous Sources for Plant Growth? (HS1010/HS254)

    April 13th, 2012
    Topic(s):Crops

    Figure 1. Downy mildew on lettucePhosphorus (P) is one of the 17 elements essential for plant growth and development, and is also a key component in some agrochemicals, such as phosphorous acid. Thus, there are two types of P closely associated with crop production. The similarity of terms such as phosphoric acid and phosphorous acid may create some confusion as to the actual content and efficacy of these products. This 7-page fact sheet explains what phosphorous acid is and examines both its fungicidal activity and nutrient value. Written by Asha M. Brunings, Guodong Liu, Eric H. Simonne, Shouan Zhang, Yuncong Li, and Lawrence E. Datnoff, and published by the UF Department of Horticultural Sciences, March 2012.
    http://edis.ifas.ufl.edu/hs254

    How to Calculate Fertigation Injection Rates for Commercial Blueberry Production (HS1197)

    March 19th, 2012
    Topic(s):Crops

    Figure 1. For a 4-foot irrigated band within an 8-foot row spacing, the area that receives fertigation is half of the total, or "real estate," area. Thus, the actual band area of the farm equals 50% of the farm area. However, all IFAS-recommended fertilizer rates are given on a "real estate" acre basis. The amount of fertilizer to apply is calculated based on the entire area of the blueberry farm, regardless of the width of the band to which the fertilizer is applied. To increase nutrient and water use efficiencies and reduce nutrient leaching and environmental concerns, fertigation is recommended for commercial blueberry production. In fact, successful fertigation can enhance sustainability and maximize profitability for commercial blueberry enterprises. One of the key factors in fertigation is the correct calculation of fertilizer injection rate and time for the acreage. This publication helps blueberry growers correctly calculate fertigation injection rates and times and provides reference tables for checking injection rates and times needed for a variety of production scenarios. This 3-page fact sheet was written by Guodong Liu, Jeffrey Williamson, Gary England, and Alicia Whidden, and published by the UF Department of Horticultural Sciences, March 2012.
    http://edis.ifas.ufl.edu/hs1197

    Weed Management in Pecan (HS95/WG022)

    March 19th, 2012
    Topic(s):Crops

    Pecan tree grove in North Florida. UF/IFAS Photo: Thomas Wright.Weeds compete with pecan trees for light, nutrients, and water. Weed interference can be minimized with proper cultural practices and herbicides. This 5-page fact sheet was written by Peter J. Dittmar and Jeffrey G. Williamson, and published by the UF Department of Horticultural Sciences, March 2012.
    http://edis.ifas.ufl.edu/wg022

    Lettuce Cultivars for Insect Resistance in Southern Florida (HS1196/HS1196)

    March 13th, 2012
    Topic(s):Crops

    Russell Nagata, associate professor at the University of Florida's Institute of Food and Agricultural Sciences at Belle Glade, Florida , examines leafminer colonies on romaine lettuce. He is using genetic engineering to make lettuce resistant to the tiny leafminer insect that tunnels through leaves and makes lettuce unmarketable. The improved lettuce will lower pesticide cost for growers and produce higher quility lettuce for consumers. Photography by Milt PutnamFlorida’s subtropical climate facilitates lettuce production from fall through spring, but the warm, moist conditions are also favorable for insect proliferation and damage. Information about current cultivar response to common insect pests in Florida is limited, so UF/IFAS researchers conducted a study to evaluate cultivar response to insect infestation under field conditions and to identify resistance useful for integrated pest management. This 4-page fact sheet was written by Huangjun Lu, Alan L. Wright, and David Sui, and published by the UF Department of Horticultural Sciences, February 2012.
    http://edis.ifas.ufl.edu/hs1196

    Growing Heirloom Tomato Varieties in Southwest Florida (HS921/HS174)

    March 6th, 2012
    Topic(s):Crops, Lawn & Garden, Organic, Small Farms

    Figure 1. Common heirloom varieties growing in South FloridaHeirloom tomatoes have seen a rebirth in popularity because of increasing demand for fresh, fully ripe, tasty tomatoes. A tomato must meet three criteria to be considered an heirloom variety: The variety must be reproduced by seed, must have been cultivated for more than 50 years, and must have a history. Heirloom tomatoes are known for their singular taste, shape, and color, which include purple, orange, and yellow, in addition to the common red tomatoes. This 9-page fact sheet was written by Monica Ozores-Hampton, Charles S. Vavrina, and Aline Coelho Frasca, and published by the UF Department of Horticultural Sciences, February 2012.
    http://edis.ifas.ufl.edu/hs174

    Florida's Commercial Blueberry Industry (HS742/AC031)

    March 1st, 2012
    Topic(s):Crops

    gure 1. Southern highbush blueberry planting with bark beds and drip and overhead irrigationThe Florida blueberry industry has grown rapidly because Florida growers can produce high-quality fruit when few fresh berries are available and berry prices are high. Although southern highbush blueberry acreage has expanded significantly in Florida, Georgia, California, and Mexico during the last several years, better cultivars and improved cultural practices have increased grower production efficiency during the last several years, with promising production trends for the future profitability. This 4-page fact sheet was written by J. G. Williamson, J. W. Olmstead, and P. M. Lyrene, and published by the UF Department of Horticultural Sciences, February 2012.
    http://edis.ifas.ufl.edu/ac031

    Weed Management in Peach (HS93/WG020)

    March 1st, 2012
    Topic(s):Crops

    Figure 1. Weed-free strip under peach trees and grass strips between rowsProper weed management is important for a healthy peach orchard. Peach trees and weeds compete for water, nutrients, and light. And they serve as hosts for insects that cause catfacing and nematodes that carry viral diseases. This 6-page fact sheet was written by Peter J. Dittmar and Jeffrey G. Williamson, and published by the UF Department of Horticultural Sciences, January 2012.
    http://edis.ifas.ufl.edu/wg020

    Jatropha: An Alternative Substitute to Fossil Fuel (HS1193)

    December 15th, 2011
    Topic(s):Crops

    Jatropha seedsJatropha is a tropical plant and can be grown in low to high rainfall and diverse soil types, but the plant is susceptible to freezes. The plant produces seeds containing inedible oil that can be converted to biodiesel. The cake by-product from oil extraction can be used for fish and animal feed, biogas, or as an organic fertilizer. This 10-page fact sheet describes the plant morphology, species adaptability, cultural practices, and crop uses. Written by Kamrun Nahar and Monica Ozores-Hampton, and published by the UF Department of Horticultural Sciences, December 2011. (UF/IFAS Photo by Tyler Jones)
    http://edis.ifas.ufl.edu/hs1193

    Controlled-Release Fertilizers for Potato Production in Florida (HS941/HS187)

    October 20th, 2011
    Topic(s):Crops, Water

    Red Potatoes.The recent emphasis on the development of vegetable production best management practices has prompted a re-examination of fertilization practices in Florida potato production in the St. Johns River watershed. The numbers provided in this 5-page fact sheet serve as a starting point for discussion about the value of using controlled-release fertilizers, which can be a win-win-win opportunity for producers, manufacturers, and regulatory agencies by helping all meet their production, business, and environmental goals. Written by Guodong Liu, Eric H. Simonne, Yuncong Li, Chad M. Hutchinson, Mark Warren, and Steven Lands, and published by the UF Department of Horticultural Sciences, October 2011. (UF/IFAS Photo by Tyler Jones)
    http://edis.ifas.ufl.edu/hs187

    Pecan Cultivars for North Florida (HS106)

    September 26th, 2011
    Topic(s):Crops

    pecan grove in North FloridaPecan recommendations for Florida have been updated to include new information about cultivar performance. Check out this 13-page fact sheet to select the best cultivars for yield, performance, resistance to disease, and resistance to limb breakage. Written by Peter C. Andersen, and published by the UF Department of Horticultural Sciences, September 2011. (UF/IFAS Photo: Thomas Wright.)
    http://edis.ifas.ufl.edu/hs106

    Alternative Opportunities for Small Farms: Peach and Nectarine Production Review (RFAC018/AC018)

    September 21st, 2011
    Topic(s):Crops, Small Farms

    PeachFlorida produces some of the earliest commercial-quality peaches and nectarines in North America. During the last 10 years, many new, improved peach and nectarine cultivars have been released by the University of Florida. They have increased the potential for expansion of commercial peach and nectarine acreage throughout much of the Florida peninsula and along the Gulf Coast regions of the southeastern United States. This 3-page fact sheet was written by Mercy Olmstead, Jeff Williamson, Jose Chaparro, and Tim Crocker, and published by the UF Department of Horticultural Sciences, September 2011.
    http://edis.ifas.ufl.edu/ac018

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