From nutritional supplements to managing irrigation to grower outreach and education, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers are finding additional ways to support Florida citrus growers in their fight against citrus greening disease. Twelve projects were funded by the state legislature-funded Citrus Initiative program in 2017-2018 that looked at possible short- and long-term solutions that …
HLB Alters Nutrition Needs
Yield and fruit size are not good measurements of the nutrition needs of HLB-affected trees, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have discovered. “So we decided to go with something that’s fruit independent for the study,” says UF/IFAS scientist Arnold Schumann of the Citrus Research and Education Center at Lake Alfred. Schumann says he and …
Texas A&M AgriLife Research, Consortium Get Grant for HLB Research
A Texas A&M AgriLife Research scientist at Weslaco will lead a consortium of researchers in major citrus-producing regions to conduct high-throughput screening in discovering antimicrobials that could prevent citrus greening. Citrus greening, also known as huanglongbing (HLB) disease, has devastated citrus fruit crops in Florida and has made its way to Texas and California. The research grant of approximately $1.2 …
Using Soil Moisture Sensors for Citrus Irrigation
By Arnold Schumann, Laura Waldo, Davie Kadyampakeni, Rhuanito Ferrarezi and Chris Oswalt Florida citrus trees may require irrigation throughout the year due to the extremely sandy soils with low water-holding capacities, and the warm subtropical climate with distinct drought periods in spring. A soil water sensor system can provide the most reliable data for effective citrus irrigation scheduling in these …
Jack Payne on New SWFREC Director
By Jack Payne, jackpayne@ufl.edu, @JackPayneIFAS Kelly Morgan is a more reliable water source than rain is. You don’t know when or if you’ll get water from the sky, but what Morgan can teach you makes every drop you have go farther. His focus on the farmer as customer is what has made him so successful as the state’s best management …
Artificial Intelligence for Detecting Citrus Pests, Diseases and Disorders
By Arnold Schumann, Laura Waldo, William Holmes, Gary Test and Tim Ebert Artificial intelligence (AI) is increasingly common in electronic devices at home or work, in social media, video streaming services, electronic commerce, and in internet search engines. Now, AI is rapidly entering the farming scene. Growers using modern precision agriculture tools and techniques often face a barrage of high …
Cold-Hardy Citrus for North Florida
By Xavier Martini and Peter Andersen Cold-hardy citrus has a long history in North Florida, Alabama, Louisiana and Georgia. Records show that sweet orange, citron, lemon, lime and pummelo were brought to Saint Augustine, Florida, from Spain in 1565. However, it was not until the late 1700s that the Jesuits introduced satsuma (Citrus unshiu) to what is now Louisiana. SATSUMA …
Certis for Citrus Program Helps Fund Fight Against HLB
The biopesticide company, Certis USA, presented the non-profit Citrus Research and Development Foundation, Inc. (CRDF) with a check for $20,000 to help fund research projects in an effort to find a cure for huanglongbing (HLB; citrus greening). The presentation was made during the Florida Citrus Industry Annual Conference that took place at the Hyatt Regency Coconut Point Resort and Spa. …
Strong Finish for 2017–18 Brazilian Citrus Season
By Marcos Fava Neves The last Fundecitrus announcement (April 10) of the season for the Brazilian citrus crop was 398.35 million boxes. This includes: 77.48 million boxes of Hamlin, Westin and Rubi 18.02 million boxes of Valencia Americana and Valencia Argentina 118.47 million boxes of Pera Rio 139.62 million boxes of Valencia 44.76 million boxes of Natal (Navel) SEASON SUMMARY …
The Road to Recovery
Growers discuss lessons learned from Hurricane Irma, replanting plans, grove rehabilitation, crop insurance and more. By Tacy Callies Florida citrus growers awaiting Hurricane Irma federal aid and insurance payouts are doing their best to keep crops healthy until more money is available. Paul Meador, citrus grower and head of Everglades Harvesting & Hauling in LaBelle, took a big hit from …
New HLB Research Facility in Riverside
By Len Wilcox There’s a new research facility funded by California citrus growers to help combat huanglongbing (HLB), also known as citrus greening disease. The facility, located in Riverside, California, is the result of a 3-year cooperative effort of the University of California, Riverside (UC Riverside) and California citrus growers. Using funds provided by members of California Citrus Mutual (CCM), …
Tools for Temporary Gene Expression in the HLB Battle
By Amit Levy and Choaa El-Mohtar When thinking about genetic engineering, the first thing that comes to mind is usually GMOs (genetically modified organisms) In a GMO, a plant genome is engineered to include additional genetic sequences, usually genes with some useful activity that give the plant an advantage. This method is called a stable method because genes will be …
A Talk on the Fresh Side
Greg Nelson, president of Egan Fruit Packing in Fort Pierce, Florida, summarizes the status of the fresh citrus industry and discusses opportunities for the future. “We’ve seen a slight decline in fresh orange consumption over the past 20 years, but a more significant, dramatic decline in fresh grapefruit consumption,” Nelson says. “But a lot of that is driven by lack …
Researchers Find How HLB Bypasses Citrus Immune System
Researchers at the University of California, Riverside (UCR) claim they have made an important step in understanding the molecular mechanism of huanglongbing (HLB). They believe they have found the mechanism by which the disease evades detection and destruction by the natural immune system of citrus trees. HLB, or citrus greening disease, has devastated groves in Asia, South America and the …
Perdue Announces Florida Citrus Hurricane Recovery Details
(Washington, D.C., May 1, 2018) – Under the direction of President Donald J. Trump, U.S. Secretary of Agriculture Sonny Perdue today announced new details on eligibility for a new U.S. Department of Agriculture (USDA) disaster program, 2017 Wildfires and Hurricanes Indemnity Program (2017 WHIP). Additionally, USDA will provide $340 million through a block grant to the state of Florida for Hurricane …
CRDF Accepting Applications for Chief Operating Officer
The Citrus Research and Development Foundation (CRDF) has launched a search for its next chief operating officer (COO). Located at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in Lake Alfred, the CRDF is a direct support organization of the University of Florida. This not-for-profit corporation was established to support Florida’s citrus …
Imidacloprid Alternatives for Psyllid Control
Phil Stansly, University of Florida Institute of Food and Agricultural Sciences entomologist, discusses alternatives to imidacloprid for helping to control HLB-spreading Asian citrus psyllids (ACP). “Imidacloprid of course is typical of the neonicotinoids that we’ve been using as soil applications to protect young trees,” Stansly says. “We’ve seen and the growers have seen, too, that soil applications of systemic insecticides …
Steep Florida Grapefruit Production Declines
Most growers and professionals in the citrus industry are aware that Florida’s orange crop has declined due to diseases like citrus greening and natural disasters like Hurricane Irma. However, Florida’s grapefruit crop has been suffering tremendously as well, even more severely than Florida oranges. The Florida orange crop has dropped by 35 percent this year, while Florida grapefruit has dropped …
Single Breakthrough Discovery for HLB in Florida Unlikely
A single breakthrough discovery for managing citrus greening in Florida in the future is unlikely, says a new report by the National Academies of Sciences, Engineering, and Medicine. The committee that wrote the report called for a systems approach to prioritize research on the disease and strategically distribute resources for research to effectively manage the disease, which is the most …
Calls Increase for Irma Aid to Flow to Farmers
Pressure is growing from Florida and other states as the U.S. Department of Agriculture (USDA) continues to determine how to move forward with a disaster-relief package President Donald Trump signed in early February. U.S. Sen. Marco Rubio, R-Fla., and U.S. Sen. Bill Nelson, D-Fla., joined colleagues from Texas, Louisiana and California this week in prodding U.S. Agriculture Secretary Sonny Perdue …