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Below you'll find a list of all posts that have been tagged as “UF/IFAS”
The size of fruit that should be sprayed, the spraying interval and ways to avoid copper phytotoxicity were among the citrus canker topics plant pathologist Megan Dewdney offered growers recently. Dewdney said fruit are most susceptible to canker when they are between 3/8 inch and 1.5 inches in diameter. The fruit rind becomes much more resistant when the fruit is …
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) has committed to updating nutrition recommendations for citrus now that HLB is endemic across the state. Some of this ongoing research was discussed during the February All In For Citrus podcast. Growers will be interested to hear from Davie Kadyampakeni, a UF/IFAS assistant professor of soil and water science, …
In late February, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) hosted its second annual Flavor Summit. The hybrid in-person/online event was held at the Citrus Research and Education Center (CREC) in Lake Alfred. CREC and the UF Center for Smell and Taste hosted the event that took a deep dive into the science of how flavors …
By J. Scott Angle, jangle@ufl.edu, @IFAS_VP It’s not unusual for the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) to have a dozen contacts with Peter Chaires in a day, between the emails, calls and visits. Chaires serves as executive director of the New Varieties Development & Management Corp. (NVDMC), executive vice president of Florida Citrus Packers and …
Recent research describes in detail how HLB causes damage to citrus trees and presents the case that HLB is a pathogen-triggered immune disease. A pathogen-triggered immune disease results from the activation of an organism’s immune cells fighting a pathogen. Nian Wang, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor, took part in the research. This is the …
Emilie Demard is working to control mites and other pests that damage fresh grapefruit growing as citrus under protective screens (CUPS) at the Indian River Research and Education Center in Fort Pierce. “I look at biological control — in this case, predatory mites controlling pest mites to minimize the need for agrochemicals,” said Demard, a Ph.D. entomology graduate with the …
In the latest episode of the All In For Citrus podcast, Michael Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, previews two upcoming events citrus growers will want to attend. The first is a Finger Lime Symposium. The half-day event will be held virtually from 1 p.m. to 5 …
The horticultural characteristics of new citrus varieties are important, especially in the era of HLB when disease tolerance is critical. But how the fruit tastes and other consumer attributes are equally important. That’s why citrus variety display days are vital in citrus breeding. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in …
Fire ant management is essential to the long-term sustainability of citrus groves. This is particularly true for young trees still trying to develop root systems, said Xavier Martini, assistant professor of entomology at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) North Florida Research and Education Center (NFREC). Martini spoke on insect management at the recent UF/IFAS …
By Brett Bultemeier and Lauren Diepenbrock The revocation of chlorpyrifos residues and tolerances that became effective on Feb. 28, 2022, caused some confusion and concern when it was first announced. The legal description provided by the Environmental Protection Agency is challenging to fully understand. Therefore, the Pesticide Information Office from the University of Florida Institute of Food and Agricultural Sciences …
A La Niña weather pattern is most likely this spring, with higher-than-average temperatures and below-average rain predicted in Florida, researcher Megan Dewdney reported in a Feb. 24 presentation about postbloom fruit drop (PFD). That could have some influence on the severity of PFD, since its preferred climate is humid and subtropical, and the fungus moves with rain splash and wind-borne …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers emphasized the importance of efficient irrigation and nutrient management at a workshop earlier this month at the Citrus Research and Education Center in Lake Alfred. In Florida, the citrus industry accounts for about 30% of irrigated cropland acreage, reported UF/IFAS researcher Alisheikh Atta. Worldwide, the agriculture industry consumes about …
Citrus acreage continues to increase across the North Florida, South Georgia and South Alabama regions. Interest has expanded to large row crop farmers, who see citrus as a viable alternative crop, said Kim Jones at the Feb. 17 Citrus Health Forum meeting at the University of Florida Institute of Food and Agricultural Sciences North Florida Research and Education Center. Jones …
The pathogen phytophthora has long presented problems for Florida citrus growers. But the HLB disease that has plagued Florida since 2005 reduces the efficacy of phytophthora management, citrus pathologist Ozgur Batuman reported in a recent virtual seminar. Batuman, who works for the University of Florida Institute of Food and Agricultural Sciences, said improved fungicide timing, number of applications and rates …
By Megan Dewdney Mid-summer to fall has become algal spot season in my office. The disease is re-emerging in Florida for unknown reasons. While much of the year algal spot is low key and hard to spot, between June and September it is very obvious. So, what is algal spot, should you be concerned, and what can you do about …
By Ozgur Batuman, Sanju Kunwar and Ana Redondo There are new products that potentially can be added to a grower’s toolbox in coming seasons for managing citrus bacterial canker. Citrus canker is an infection by a species of bacteria (Xanthomonas citri subsp. citri) that causes fruit blemishes and fruit drop. It makes fruit unsightly and lowers its marketability. Every year, …
There are many materials that will kill the bacteria (Candidatus Liberibacter asiaticus) that causes HLB. The challenge has been getting these materials to the place where the bacteria lives in citrus trees — the phloem. Some believe trunk injection might do the trick, but it is an expensive and labor-intensive practice that has limited any breakthroughs so far. During the …
Arnold Schumann recently reported on what he called “the most successful and practical intervention for improving color break and quality in CUPS fresh fruit.” CUPS stands for citrus under protective screen, a growing technique that Schumann, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher, helped pioneer in Florida. He reported on his work at a Feb. …
Individual protective covers (IPCs) on citrus trees have become a more common sight in Florida groves in recent years. The bags that cover young trees exclude the Asian citrus psyllid (ACP) from feeding on the plants, thus protecting them from HLB. Some estimates suggest that more than 1 million IPCs are now deployed in the state’s citrus groves. During the …
Citrus leprosis has not been reported in Florida since 1968, but researcher Ozgur Batuman called it “an approaching threat to Florida citrus” in a recent virtual seminar. Batuman, a citrus pathologist at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Southwest Florida Research and Education Center, urged growers to be on the lookout for the disease. According …
