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Below you'll see everything we could locate for your search of “rootstock”
By Arnold Schumann, Ariel Singerman and Yu Wang Grapefruit production in Florida has been drastically reduced by huanglongbing (HLB) disease, from 40.9 million boxes in 2003–04 to 4.5 million boxes in 2018–19, according to the U.S. Department of Agriculture. Grapefruit varieties are particularly vulnerable to HLB due to cumulative losses from stunted tree growth, low fruit yield, high-percentage fruit drop, …
Shortly before HLB was discovered in Florida in 2005, many trees on sour orange rootstock were lost to citrus tristeza virus (CTV), which is transmitted by the brown citrus aphid. Sour orange rootstock was extremely susceptible to CTV, so many growers stopped using the rootstock. “Switching to non-sour orange rootstock eliminated the danger from CTV decline,” University of Florida Institute …
Fred Gmitter provided an update at Citrus Expo on University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus varieties, including OLL-20 and Bingo. Gmitter is a UF/IFAS citrus plant breeder and geneticist at the Citrus Research and Education Center. Gmitter said OLL-20, a new sweet orange, has “exceptional flavor characteristics … It looks to be something that could …
A group of growers, production managers and researchers hopes to ensure future nutrition research funded by the Citrus Research and Development Foundation (CRDF) answers grower questions about nutrition. The dozen-plus members of CRDF’s Nutrition Working Group held their first meeting Oct. 30 at the Citrus Research and Education Center in Lake Alfred. The panel is about evenly split between grower …
At Citrus Expo in August, Rhuanito “Johnny” Ferrarezi reported on research into planting densities, irrigation and fertilization that might allow growers to better produce oranges in the Indian River area. He is a researcher with the University of Florida Institute of Food and Agricultural Sciences at the Indian River Research and Education Center in Fort Pierce. The Indian River region …
At Citrus Expo, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) introduced a new Citrus Nutrition Program to help growers ensure their trees are getting the proper nutrition. Tripti Vashisth, UF/IFAS horticulturist at the Citrus Research and Education Center (CREC), provides more information about the effort. “We have learned the past few years that citrus nutrition can …
By Fernando Alferez, Susmita Gaire, Ute Albrecht, Ozgur Batuman, Jawwad Qureshi and Mongi Zekri Controlling the Asian citrus psyllid vector of huanglongbing (HLB) is critical, especially in young trees. Reducing HLB incidence is essential for tree survival and productivity under current endemic conditions. Individual protective covers (IPCs) are a novel strategy based on psyllid exclusion by means of a protective …
Newly planted trees need to have root systems that are as established, robust and healthy as possible before contracting HLB, Evan Johnson told growers at Citrus Expo. That’s because HLB takes out a tree’s fibrous root system and causes dieback of the structural root system. Having strong root systems from the start will increase the productive life of trees, the …
By Thomas Stopyra, Certified Crop Advisor Note: The following report is based on data gathered from a variety of sources and reflects the personal opinion of the author. It should not be used as a basis for buying, selling or speculating futures or any other business decisions regarding agricultural enterprises or commodities. The recent estimate published by Fundecitrus for the …
Michael Rogers, director of the Citrus Research and Education Center (CREC), discusses the new Florida Citrus Production Guide, tree planting decisions, fruit displays and plans for hiring a new horticulturist. The CREC is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) facility. Rogers says the recently released production guide for growers “was a hot commodity this year …
Many citrus growers want to replant their groves that are withering because of greening. But they need field data to know which varieties to plant. Gathering that information takes time. As a rule, though, it takes 15 to 20 years to develop a new citrus variety and get data on how it will perform in the field before it is …
September’s All In for Citrus Podcast includes some exciting updates from University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers. First, Michael Rogers, director of the UF/IFAS Citrus Research and Education Center (CREC), discusses several topics. Included are the new Florida Citrus Production Guide, tree planting decisions, fruit displays and the planned hiring of a new horticulturist at …
Laurie Hurner grew up in a fifth-generation Florida citrus-growing family, and she and her sisters worked their farm in Highlands County. “My parents had three daughters,” said Hurner, the director of University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Extension Highlands County and the county’s citrus agent. “We were all well-rounded.” From their mom, the girls learned what …
The 28th annual Citrus Expo saw great success as growers piled into the Lee Civic Center on Aug. 14–15 in North Fort Myers, Florida. Growers experienced a dynamic trade show and a new hands-on session. The seminar program, titled “Growing Stronger,” featured presentations on the latest research from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Many …
After announcing at the August meeting of the Citrus Research and Development Foundation that the 2019–20 Florida Citrus Production Guide is now available, multi-county citrus Extension agent Chris Oswalt talked about tree and crop conditions. He summarizes his presentation in an interview. “After all the rainfall we’ve had, and we’ve had quite a bit of good rainfall this past month …
The Citrus Research and Field Trial Foundation Inc. (CRAFT Foundation) board of directors, technical working group (TWG), staff and a legion of volunteers have been working at top speed throughout the summer finalizing the formation, organization and funding of the CRAFT program. The first priority for the CRAFT Foundation staff and board of directors has been securing all available funding …
The September issue of Citrus Industry features highlights from this year’s record-setting Citrus Expo. Inside you’ll find: An overview and photos from the trade show and educational programs A report in the Pulpwash column on the general session, which included speakers who addressed three hot topics in Florida ag: hemp, water and labor Research updates from the citrus seminar program, …
August’s All In For Citrus podcast includes some exciting updates from the recent Citrus Expo! First, Michael Rogers, director of the Citrus Research and Education Center, summarizes the good grower responses that the University of Florida Institute of Food and Agricultural Sciences( UF/IFAS) received about the seminar program at Citrus Expo. He discusses the new Hands-on Session that attracted a …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) horticulturist Tripti Vashisth discusses the citrus seminars to be presented Aug. 14-15 at Citrus Expo. She also reports on a presentation she’ll make at Expo regarding fruit drop. Vashisth is organizing the Citrus Expo educational sessions for growers. She says the goal is to present “something useful for the growers …
Research into citrus under protective screen (CUPS) in the Indian River area was discussed by students of Rhuanito (Johnny) Ferrarezi at the Florida State Horticultural Society meeting in June. The project at the Indian River Research and Education Center (IRREC) grows grapefruit, the citrus of most economic importance in the Indian River region. Ferrarezi, a University of Florida Institute of …
