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 …
PGRs: Multipurpose Tools for Citrus Improvement
By Tripti Vashisth Canopy health of HLB-affected citrus has been directly related to disease severity, fruit drop and overall fruit production. Some success has been found with the use of certain plant growth regulators (PGRs) such as gibberellic acid (GA) and 2,4-dichlorophenoxyacetic acid (2,4-D) to achieve healthier trees with reduced fruit drop and increased production. HLB MANAGEMENT Application of these …
Crop Transformation Center Takes Aim at HLB Resistance
By Frank Giles The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) has established itself as a leader in new technological frontiers like artificial intelligence (AI). In fact, the school has the 15th most powerful computer in the world. The HiPerGator, as the computer is called, will assist in AI development and on many other technological fronts. Another …
Scouting Tools and Tactics
By Matt Smith Editor’s note: This article grants one continuing education unit (CEU) in the Core category toward the renewal of a Florida Department of Agriculture and Consumer Services restricted-use pesticide license when the accompanying test is submitted and approved. This article is an updated version of a previous article, “Scouting: The Tip of the IPM Spear,” published in the …
Put Research Results to Work
At the Florida Citrus Show, growers will learn the latest research results that they can put to work in their groves. Doug Bournique, executive vice president of the Indian River Citrus League, encourages growers to attend the event to hear research straight from the source. The Florida Citrus Show is hosted at the University of Florida Institute of Food and …
How to Enhance Pre-emergent Herbicide Performance
By Ramdas Kanissery and Robert Riefer Pre-emergent herbicides, also known as residual herbicides, are highly effective in the long-term suppression of weeds in citrus tree rows. These herbicides remain in the soil and prevent susceptible weeds from germinating. In order to achieve the best weed control results, pre-emergent herbicides need to stay within approximately the top 5 inches of soil, …
PIECES OF THE PAST: Celebrating a Special Centennial
By Brenda Eubanks Burnette One hundred years ago, in February of 1924, a young woman named Dorothy Williamson was chosen as Florida’s first Citrus Queen. Since that time, numerous young women have vied for the title and have promoted the Florida citrus industry throughout the world. To celebrate the centennial, the Florida Citrus Hall of Fame has interviewed many of …
New Light Shed on HLB and Fertilization
The effort to help huanglongbing (HLB)-impacted citrus trees has taken another step forward. A University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) study examined the relationship between fertilization, root health and fruit yield. Researchers focused on Valencia orange trees with HLB. Associate Professor Davie Kadyampakeni led the effort at the UF/IFAS Citrus Research and Education Center. The study, …
All In For Citrus Podcast, January 2024
If you grow citrus in Florida, you’ve probably heard the term CRISPR used in discussions about gene editing to find HLB resistance. CRISPR is complicated science but holds great promise in fighting both human and plant diseases. At the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), Nian Wang, a professor of microbiology and cell science, has been …
Sneak Peek: February 2024 Citrus Industry
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 …
Taking Available Tools to the Grove
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 & …
Planning Pointers for Insect Management
By Lauren Diepenbrock Insect and mite management is a year-round challenge in Florida citrus. With the warm climate, pests are at the ready as soon as plant resources are available to them. With knowledge of insect and mite biology in relation to tree phenology, plans can be developed to protect fruit and maintain productive citrus trees. Populations of some highly …
Good Times, Good Food, Great Company
Get ready to tailgate at the Florida Citrus Show! This one-of-a-kind event is returning to the Treasure Coast on April 3. In between seminar sessions, the trade show will become a tailgate party that you won’t want to miss. The day will kick off with breakfast and coffee in the tailgate hub. Attendees will have the opportunity to walk the …
Citrus Weathers Subfreezing Nights in Cold-Hardy Region
By Clint Thompson Trees in the cold-hardy citrus region weathered last week’s multiple nights of sub-freezing temperatures, according to one industry expert. “I had somebody here at the house and they asked, ‘Are you still running sprinklers?’ I was like, ‘Heavens no, but it’s all that ice thawing out and running out into the road.’ It’s a pond out there …
Updates on FDOC Research Projects
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 …
Brassinosteroid and Weed Management Research Updated
Brassinosteroids for HLB-infected trees and the latest on year-round weed management were discussed at a Jan. 17 OJ Break at the Citrus Research and Education Center in Lake Alfred, Florida. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) multi-county citrus Extension agent Chris Oswalt hosted the event. UF/IFAS assistant professors Fernando Alferez and Ramdas Kanissery made the presentations …
Irrigation Strategy to Enhance Fruit Growth and Retention
By Tripti Vashisth Huanglongbing (HLB) severity is associated with small fruit sizes and lower fruit numbers at harvest. Moreover, small fruit are more likely to drop and drop earlier during preharvest fruit drop. Unfortunately, management practices suggested to increase fruit size or reduce drop have had mixed results. So, before looking for ways to increase fruit size and number, it …
CITRUS NURSERY SOURCE: Seeds Aplenty
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 …
Changes to U.S. Citrus Forecast
In the Jan. 12 citrus forecast from the U.S. Department of Agriculture’s National Agricultural Statistics Service (USDA NASS), Florida’s citrus crop estimates were unchanged from December, but other citrus-producing states saw changes. CALIFORNIA UPS AND DOWNSThe California forecast for oranges increased for both Valencias and non-Valencias. The Valencia crop rose from 7.5 million boxes to 7.8 million boxes. Non-Valencias increased …
Update on UF/IFAS Leadership
Robert Gilbert, who has served the past six months as University of Florida (UF) interim senior vice president for agriculture and natural resources, will serve in a full leadership role for at least another 18 months. Gilbert has served as University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research dean and interim senior vice president while Scott Angle …