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Below you'll see everything we could locate for your search of “rootstocks”
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center hosted an OJ Break seminar in mid-May. Topics included management of nematodes, results of trunk-injection therapies and the use of cover crops in citrus. Larry Duncan, a UF/IFAS professor of nematology, presented research findings on the impact of sting nematodes in citrus. He provided …
Florida growers are well into their second application of oxytetracycline (OTC) trunk injection as the 2023–24 season winds down. The results of the first application made last year are becoming somewhat clearer, but there’s still more to observe and learn about trunk injection. Ute Albrecht, associate professor of plant physiology with the University of Florida Institute of Food and Agricultural …
Jake Price, University of Georgia (UGA) county Extension coordinator, recently provided a summary of citrus projects he has been working on: Source: Georgia Citrus Association Sponsored ContentGrower Results With ReMedium TI® Mirror Researcher ResultsJanuary 21, 2026Take Advantage of Rising Temperatures to Treat for Fire AntsJuly 1, 2025Take the Sting Out of Fire AntsJune 1, 2025
At a recent finger lime field day, horticulturist Tripti Vashisth reported that most citrus rootstocks do well with finger limes. She said that Volkamer lemon and X-639 create the most vigorous trees, and that they and US-812 seem to be promising rootstocks for finger limes. Vashisth is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor …
A pair of panel discussions during the citrus seminars at the Florida Citrus Show gave growers the opportunity to engage with experts on top-of-mind topics. BREEDER RECOMMENDATIONS The citrus seminar program started with a discussion among citrus breeders moderated by Flavia Zambon, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor at the Indian River Research and …
During its April meeting, the Citrus Research and Development Foundation (CRDF) board of directors passed its preliminary budget for the next fiscal year. It allows $1.4 million in new project funding. “This amount should be enough to fund the projects the board wishes to fund from our primary request for proposals, which are aimed at answering practical questions growers have …
The impacts of kaolin and climate on HLB in Brazil were among topics addressed by researchers from Brazil’s Fundecitrus during the recent International Research Conference on HLB in Riverside, California. HLB is also known as citrus greening. Researcher Marcelo Miranda discussed results of a study on the use of processed kaolin in low doses to reduce the HLB-spreading psyllid population …
University of Georgia Extension agent Jake Price recently summarized yields for three recent seasons from Owari satsuma trees in a rootstock trial. Last year, 2023, was the last harvest year for data collection in the trial. Price reported that yield in the trial plot peaked in 2021 with a yield of about 20,300 pounds on 60 trees, which would be …
As growers grapple with planting new blocks in the HLB era, there has been considerable discussion about planting densities to optimize growth and yield. John Chater, assistant professor of horticultural sciences with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), has been working with growers in evaluating new varieties and rootstocks as trees are planted. TRENDING HIGHER …
Herb Young enjoyed a 40-year career in the agricultural chemical industry, starting as a technical service representative and eventually becoming a product manager. During those years, he worked on various specialty crops across the country. About 25 years of his career was spent in field research roles. So, experimentation with crops and growing practices comes naturally to Young. He has …
Bill Lennon is working with researchers to learn more about survivor trees that are standing up to HLB. Bill Lennon is a fifth-generation citrus grower who can recall the industry’s glory days when Central Florida had hundreds of thousands of citrus acres before the 1980s freezes pushed production southward in the state. But he’s remained dedicated to the area, managing …
Jake Price, University of Georgia county Extension coordinator, recently reported on the factors that influence cold hardiness of citrus. Excerpts follow: VARIETY The most obvious factor is the variety of citrus. In order of cold hardiness, the three main classes of citrus are mandarins, sweet oranges and grapefruit. Acid types of citrus such as lemons and limes are the least …
By Jake Price Rubidoux is considered the standard rootstock for Georgia, but it was not obtainable from U.S. Department of Agriculture (USDA)-certified nurseries in Florida in 2014 and 2015 because it is not a rootstock used in Florida. It is a proven rootstock in Georgia known for cold hardiness but did not perform well in a multiyear trial. The chart shows …
The Citrus Research and Development Foundation (CRDF) kicked off the new year with a full agenda for its monthly board meeting. New members were welcomed to the board. Growers Matt Machata, Sarah Spinosa and Trevor Murphy joined the group. On the research front, the board funded continued work by Ping Duan, a plant pathologist with the U.S. Department of Agriculture. …
The February issue of Citrus Industry magazine takes a look at efforts to combat HLB. Some strategies are already available for growers to implement in their groves, while others offer hope for long-term solutions. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently launched a new Crop Transformation Center. The goal of the center is to use …
The quest for long-term solutions to HLB is well underway. Technology like CRISPR is being developed to introduce tolerance or resistance to HLB. Conventional breeding also is seeking rootstocks and varieties that can resist the disease. In the meantime, growers are reminded to utilize available tools that help trees remain productive in an HLB environment. During the August Citrus & …
By Frank Giles Last year’s citrus season was marred by continuing production declines from HLB and hurricanes. The combined effect of both dropped the final all-orange output to 15.8 million boxes. Certainly, the numbers reflected the dire situation the industry found itself in after the storms. But after last year’s harvest, growers were given clearance to utilize new trunk-injection therapies …
Florida Citrus Commission (FCC) members on Jan. 17 heard an update on one recent Florida Department of Citrus (FDOC) scientific research project and learned about some future research plans. Rosa Walsh, FDOC director of scientific research, presented the information. PROGRAM FOR EXPEDITED PROPAGATIONWalsh reported that the 2022–23 Program for Expedited Propagation of HLB Tolerant and Resistant Trees was successful. She …
By Peter Chaires Beginning this month, Citrus Nursery Source (CNS) transitions to Citrus Industry magazine after 14 years in Florida Grower magazine. For those unfamiliar with this column, CNS covers citrus industry issues that are of potential interest to nurseries and the growers they serve. Recognizing that it is difficult for nursery owners and staff to regularly attend meetings, this …
A U.S. Department of Agriculture (USDA) scientist and his team are hopeful that some so-called “long-shot” varieties will pay off in the effort to find HLB-tolerant grapefruit. Matthew Mattia of the USDA Agricultural Research Services (ARS) U.S. Horticultural Research Laboratory in Fort Pierce, Florida, found the varieties at the A.H. Whitmore Foundation Farm in Groveland, Florida. The varieties are Florida …
