Although the Asian citrus psyllid (ACP) is found in Arizona at very low levels, the devastating huanglongbing (HLB) disease, also known as citrus greening, is not. John Caravetta, associate director of the Arizona Department of Agriculture (AZDA), discussed successful efforts to control the psyllid and prevent HLB from infecting orchards. Caravetta reported that “AZDA is conducting trapping for ACP in …
Watch Out for Invasive Species
By Clint Thompson April is Invasive Plant Pest and Disease Awareness Month, and the United States Department of Agriculture (USDA) wants help in identifying invasive species that threaten the food supply and cause plant diseases. Samantha Simon, USDA’s executive director of emergency and domestic programs, says invasive species can threaten agriculture and many farming operations, especially in the Southeast. She …
HLB Quarantine Area Expands in California
A quarantine expansion has been declared following the detection of the citrus disease huanglongbing (HLB), or citrus greening, in two residential citrus trees in Colton, California. This is the first time the disease has been confirmed in Colton. This detection came on the heels of the first detection in San Bernardino County in November 2019. The California Department of Food …
UF Researcher Seeks Biological Control of ACP
In the latest All In For Citrus podcast, Ozgur Batuman talks about his research into biological control of the Asian citrus psyllid (ACP). Batuman is an assistant professor at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Southwest Florida Research and Education Center. ACP control is necessary for management of citrus greening disease, or huanglongbing (HLB). Batuman’s …
Fresh Fruit Is ‘All About the Box’
Polk County grower Ed Dickinson has good things to say about some orange-mandarin juice and fresh mandarins he sampled at the Citrus Research and Education Center (CREC) in November. Dickinson was one of dozens who tried new University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) samples. He and others who scored the juice and fruit will help researchers …
Reps. Yoho, Soto Call on USDA to Stabilize Florida Orange Juice Market
Reps. Ted. S Yoho (FL-03) and Darren Soto (FL-09) led a bipartisan letter to U.S. Secretary of Agriculture Sonny Perdue requesting the U.S. Department of Agriculture increase funding for orange juice purchases in Florida to $90 million, doubling the initial allocation from this past summer. After Hurricane Irma, Florida orange production dropped precipitously from 68.7 million boxes in 2017 to 45 million boxes …
California and Florida Collaborate on HLB Research
University of California, Riverside (UCR) professor Georgios Vidalakis recently provided an update on the state of California citrus for researchers in Florida. Vidalakis is a noted professor and Extension specialist in UCR’s Microbiology and Plant Pathology Department. Among other honors, he was recently named Presidential Researcher for Sustainable Citrus Clonal Protection. Vidalakis pointed out that California has benefited greatly from …
Aiming to Improve Production of Florida Grapefruit
(UF/IFAS) — Dinesh Phuyal, who is pursuing a master’s degree in horticultural sciences from the University of Florida’s College of Agricultural and Life Sciences, recently garnered a prestigious Yara North America Crop Innovation Scholarship. The award is Phuyal’s fourth academic honor this year for his efforts to improve Florida grapefruit tree size, fruit yield and fruit quality. Phuyal studies higher …
New Grapefruit Rootstock, Scion Experiment
The world’s peerless grapefruit grows in the Indian River Citrus District. Balanced with sugar and tart, and a thin rind for easy peeling, the fruit is sold mostly for export to European and Asian markets, where it is a high-price delicacy. But the once-thriving industry is in decline, and a plant pathogen is present in all of the state’s grapefruit …
Florida to Get 1,500 New Acres of Grapefruit
In recent years, the iconic Florida citrus industry has been faced with challenges from devastating citrus greening to major hurricanes pummeling the state’s fruit groves. But industry members are doubling down on their commitment to ensure citrus and juice products remain synonymous with the Sunshine State. Peace River Citrus Products and Scott Family Companies and its partners announced they will …
Cloud-Based Software Helps Farmers on the Ground
A University of Florida agricultural engineer has developed software that can help farmers find the best places to plant crops and to identify fruit and vegetable varieties that perform better against diseases. Now, Yiannis Ampatzidis is leading an effort to refine the software so it can help growers even more. To help farmers protect and even increase their harvests, Ampatzidis, …
IPCs Effective Against Psyllids and HLB
Long-time multi-county citrus Extension agent Mongi Zekri, who serves Southwest Florida counties, says individual protective covers (IPCs) work well in the fight against citrus greening, also known as HLB. “They have been very effective in controlling or managing citrus greening, because they don’t allow the citrus psyllid, which is the vector of the disease, to get to the tree,” Zekri …
Oxytetracycline Sprays vs. Trunk Injections
Since 2016, federal authorities have allowed Florida citrus growers to spray oxytetracycline solutions on their trees to combat citrus greening disease. A newly published University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) study suggests that the bactericide would be more effective if it were injected into citrus tree trunks, a practice not currently approved under U.S. law. Citrus …
More Predictable Market Ahead
By Marcos Fava Neves With the announcement of the 2019–20 crop in Brazil and Florida’s season over, more information is now available to see where the global orange juice market is headed. HIGHER FLORIDA INVENTORIESAs of July, Florida had 71.6 million boxes of oranges, 200,000 boxes more than the U.S. Department of Agriculture’s June estimate. Inventories in Florida are high. …
UF/IFAS Helps Assess, Manage New Fruit Bug
Researchers with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) are already trying to help growers figure out how to effectively manage the problems created by an invasive pest – confirmed last week in Highlands County — that could further erode citrus production at a time when growers are just beginning to turn the corner on managing …
Jack Payne Announces Retirement
After serving nearly 10 years as the senior vice president for agriculture and natural resources with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), Jack Payne announced he will retire next year. His last day with UF/IFAS will be July 1, 2020. Payne has overseen Extension offices across Florida and its 12 research and education centers since …
UF/IFAS Tops in Research
“There is no program anywhere in the country better than IFAS (University of Florida Institute of Food and Agricultural Sciences) in conducting both applied and basic research.” That declaration is made by Scott Angle, director of the U.S. Department of Agriculture National Institute of Food and Agriculture, in the latest episode of the All in for Citrus podcast. Angle became …
Tree Infected with HLB Found in Riverside, California
The California Department of Food and Agriculture (CDFA) stated last week that a second tree has tested positive for HLB disease, also known as citrus greening, in Riverside County. Due to being in a previously identified detection area, the tree had been tested several times previously but had not shown indications of the disease. The CDFA is in the process …
Grapefruit Grown Under Protective Screens Maximizes Fruit Yield
Growers of one of Florida’s signature citrus crops may see more production and possibly less of the deadly citrus greening disease. Researchers have worked for four years growing grapefruit under protective screens on a 1-acre experimental plot at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), and they’re seeing encouraging results. UF/IFAS scientists and a few commercial …
Using Organic Insecticides for Psyllid Control
Organic insecticides rotated with either spray oil or insecticidal soap provided good Asian citrus psyllid (ACP) suppression in long-term studies in Florida, entomologist Jawwad Qureshi reported recently. Qureshi is a University of Florida Institute of Food and Agricultural Sciences researcher at the Southwest Florida Research and Education Center in Immokalee. Suppression of ACP is important because the pest spreads citrus …





























