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Below you'll see everything we could locate for your search of “Hamlin”
Citrus trees grown in Florida continuously undergo various types and levels of stress. Stressors can include severe weather conditions, soil pH, chemicals, pests and diseases. The constant presence of HLB and psyllid infestation adds further stress to the tree, compromising overall tree health. Off-season flowering and prolonged flowering are common responses of trees when undergoing various stress conditions. Off-season and …
Add Michael Rogers to the list of those seeing early-season fruit drop in Florida this fall. Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, saw the drop while visiting groves. In the December All In For Citrus podcast, he also addresses flower bud induction advisories and upcoming UF/IFAS presentations. …
Multi-county citrus Extension agent Chris Oswalt discussed historical and current freeze protection measures in a virtual Dec. 22 OJ Break. PASSIVE MEASURESSome cold-protection measures are taken well in advance of freezes; Oswalt referred to them as passive measures. They include grove site selection, crop selection and cultural practices. One site selection consideration is planting groves at higher elevations, which are …
December brings the holiday season, but it is also a busy time for harvesting Florida citrus. As early-season varieties come off the trees, the December episode of the All In For Citrus podcast blends critical information for growers with a little holiday history and cheer. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center …
Numerous Florida citrus growers are experiencing heavy fruit drop this fall. “For some growers, it’s the worst fruit drop they have experienced; 50 percent-plus,” says grower Lee Jones with Cross Covered Caretaking. Grower Jim Snively, with Southern Gardens Citrus, said he is hearing talk of around 30 to 50 percent-plus fruit drop. “I’m hearing pick-outs that are 20 percent to …
Researchers looking into the possibility that the old Parson Brown orange might fare better than Hamlins in the face of HLB will be funded by the Citrus Research and Development Foundation (CRDF). CRDF Chief Operating Officer Rick Dantzler said the organization agreed to fund the project for $53,000 during its December meeting. The funding had been under consideration for several …
In 2016, federal authorities began allowing Florida citrus growers to spray oxytetracycline solutions on their trees to combat citrus greening disease. Since then, researchers have been investigating oxytetracycline delivery methods. In a Citrus Expo presentation, Christopher Vincent, assistant professor of horticultural sciences at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, shared …
Citrus Research and Development Foundation (CRDF) directors recently received an update on planned rootstock field trials and discussed the organization’s budget, CRDF Chief Operating Officer Rick Dantzler reported. ROOTSTOCK TRIALSThe new rootstock trials will be overseen by CRDF’s Select Committee on Plant Improvement, which met on Oct. 22 with citrus grower John Gose as chairman. Dantzler said the field trials …
The old Parson Brown sweet orange variety is showing some characteristics that could make it more attractive than Hamlin, which has long been Florida’s leading early-season orange. “Observations made in commercial blocks in Polk and neighboring counties illustrate an improved canopy density, improved mature fruit retention and higher yields in the early-maturing Parson Brown sweet orange when compared to adjacent …
By Ronald G. Doetch I am a lifelong farmer/agronomist and, at the age of 73, have worked with many different crops through the many changes in agriculture challenges and production practices. I moved to Florida four years ago to grow a few oranges and have a firsthand look and understanding of the relationship of soil health to tree decline and …
A variety of different findings in recent rootstock trials led to a conclusion that long-term evaluation of rootstocks is necessary to assess economic benefits to growers. That conclusion was part of a take-home message in Ute Albrecht’s virtual Citrus Expo presentation. Albrecht is a researcher with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Her report was …
By Evan G. Johnson As September winds down, the fall root flush is starting and will continue through November/December. This is the largest root flush of the year that stores carbohydrate reserves for next spring. Coming out of the rainy season, phytophthora has had the chance to build up plenty of inoculum, especially in groves with a history of root …
University of California, Riverside (UCR) scientist Hailing Jin believes she has found a substance capable of controlling the deadly citrus greening disease known as huanglongbing (HLB). The potential cure Jin discovered is a peptide found in the fruit of greening-tolerant Australian finger limes, which have been consumed by humans for hundreds of years. Invaio Sciences, Inc., a multi-platform technology company …
Fundecitrus and its cooperators announced an update to Brazil’s 2020-2021 orange crop forecast on Sept. 10. The new figure for the São Paulo and West-Southwest Minas Gerais citrus belt is 286.72 million boxes. This is 0.36 percent less oranges than the initial forecast released in May, and 25.87 percent less oranges than the 2019-2020 crop. The forecast represents one of …
When news broke in July that University of California Riverside (UCR) scientists had found a peptide that might control HLB, Rick Dantzler quickly contacted lead UCR scientist Hailing Jin. Dantzler is chief operating officer of the Citrus Research and Development Foundation (CRDF), which was organized in Florida primarily to find ways to solve or cope with HLB. Jin had found …
Feral citrus growing in natural hammocks reveals insights about production and HLB. By Christopher Vincent and Anirban Guha Would you rather go outside in August and stand for a few hours in the sun or in the shade? It turns out citrus prefers the shade, too. In the past two years, we have been researching the health of citrus growing …
University of Florida Institute of Food and Agricultural Sciences citrus horticulturist Fernando Alferez and multi-county citrus Extension agent Mongi Zekri co-authored a new document on the U.S. Department of Agriculture’s Hurricane Preparation and Recovery Commodity Guides website. The Citrus Producers Guide includes long- and short-term recommendations for building resilience to hurricanes in citrus groves, nurseries and citrus under protective screens …
The July issue of Citrus Industry magazine focuses on what’s new in rootstock research. When choosing a rootstock in the Sunshine State, the best place for a grower to start is with the Florida Citrus Rootstock Selection Guide. This newly updated University of Florida (UF) resource now includes an interactive web version to help simplify the process of picking a …
By Fernando Alferez and Tripti Vashisth As summer approaches and citrus trees bear developing fruit, growers can engage in several practices to improve fruit quality and yield. As temperatures rise and daylength increases, conditions are conducive for enhanced photosynthesis and accumulation of soluble sugars in the fruit. It is important to note that, in general, the temperature is negatively correlated …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus scientists Tripti Vashisth and Fernando Alferez are trying to reduce the amount of fruit drop from Hamlin and Valencia trees prior to harvest. If fruit drops, growers can’t harvest it, and that leads to losses for farmers and less fruit at the market for consumers. Normally, about 10 to …
