In the past, the citrus team at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) has heard some complaints about its Citrus Research and Education Center (CREC) website. When it asked growers what information they needed, “the feedback we got was that it’s really hard to find information on our website,” says Michael Rogers, director of the …
CRDF Addresses Leaf Sampling and Breeding Research
The Citrus Research and Development Foundation (CRDF) board recently chose leaf sampling timing and frequency as its top priority for a new nutrition research project. The board also agreed to create a Select Committee on Plant Improvement to help plant breeders decide which new cultivars should go into final field trials. CRDF Chief Operating Officer Rick Dantzler discusses the board’s …
Citrus Production Guide Available
The 2020-2021 Florida Citrus Production Guide is now available. See the online version of the University of Florida Institute of Food and Agricultural Sciences resource. Hard copies of the guide can be obtained at local UF/IFAS Extension county offices. Get the list of citrus Extension agents here. It is always best to email or call the agent ahead of time …
New UF/IFAS Plant Breeding Website
Fred Gmitter, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor of breeding and genetics, has released several mandarin citrus varieties. Most recently, he released the Marathon variety in 2018. The citrus fruit’s ability to hang onto the tree for an extended period led researchers to give it the Marathon moniker. Gmitter is one of numerous scientists …
Psyllid Study to Determine Degree of HLB Risk
University of California Riverside Extension Specialist Monique Rivera said that funding for a new research project to study the Asian citrus psyllid (ACP) has been approved. The project will take a closer look at the phenology of huanglongbing (the citrus disease ACP spreads) and its prevalence in psyllid populations. The scientists will be looking for patterns that will help them …
Mutual Testifies on OJ From Mexico
Florida Citrus Mutual Executive Vice President and CEO Mike Sparks recently testified to federal officials regarding the effects of orange juice (OJ) imports from Mexico. His testimony to the United States Trade Representative (USTR), the U.S. Department of Commerce (USDOC) and the U.S. Department of Agriculture (USDA) was part of a larger hearing on trade with Mexico and the U.S. …
Coronavirus Program Adds Citrus Varieties
Florida Citrus Mutual Executive Vice President and CEO Mike Sparks recently advised Mutual members that the U.S. Department of Agriculture’s (USDA) Farm Service Agency (FSA) has added several commodities that now qualify for Part 1 of the Coronavirus Food Assistance Program (CFAP). The CFAP provides direct relief to producers who faced price declines and additional marketing costs due to COVID-19. …
Virtual Citrus Expo Sees Great Success
For nearly three decades, Citrus Expo has been the premier event that growers turn to for the latest information and products to run a successful operation. Although the annual in-person event took a hiatus this year to ensure safety during the COVID-19 pandemic, the virtual event saw tremendous success. “In these unprecedented times, it was important for us to find ways …
Infected ACP Found in California Commercial Grove Is No Surprise
For the first time, an Asian citrus psyllid (ACP) carrying the bacteria which causes huanglongbing (HLB) was found in a commercial grove in Riverside County. While the discovery has prompted concern, University of California Riverside Extension Specialist Monique Rivera said that the find has been expected and is not all that surprising. “We’ve had positive trees removed here in Riverside, …
All In For Citrus Podcast, August 2020
August brings a special episode of the All In For Citrus podcast as listeners hear from the new leader of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and get an update on digital offerings. Citrus Research and Education Center Director Michael Rogers starts the episode by announcing a redesign to the UF/IFAS Citrus Research website. The …
Weird Trunk Disorders in Groves
Florida growers, Extension agents and others have been baffled by unusual trunk symptoms during what Evan Johnson termed “the year of the weird trunk disorder.” Growers spotted the disorders, which were similar to phytophthora, in groves over the past one and half to two years. Johnson addressed three of the disorders, which have been found in multiple counties. Johnson, a …
Area-Wide Pest Management of Florida Citrus
Ariel Singerman, University of Florida assistant professor, made an online presentation during the recent Agricultural and Applied Economics Association annual meeting. He shared his research on the implementation of area-wide pest management throughout the state of Florida. “Diminishment of pest populations by farmers on their own farm is the most widely used strategy for pest control. However, this is compromised …
Industry Split on OJ Marketing Order
A Florida citrus Industry Review Committee has divergent opinions about a possible federal marketing order for orange juice (OJ), Florida Citrus Mutual CEO Mike Sparks reported after the group met last week. “There were some that wanted to roll up their sleeves and continue work. There were a couple of committee members that had heard enough” and didn’t want to …
CRDF Looking at Peptide for HLB
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 …
Citrus Disease: What to Watch for in Georgia
The citrus greening disease (huanglongbing or HLB) that has devastated Florida’s citrus industry over the past decade has not affected Georgia commercial production. However, growers should still be aware of the potential danger it can bring. According to Jonathan Oliver, fruit pathologist and Extension specialist in the Department of Plant Pathology at the University of Georgia (UGA), all confirmed HLB-positive …
California Citrus Movement Rules Amended
The Citrus Pest & Disease Prevention Program, an agency of the California Department of Food and Agriculture (CDFA), has revised the rules governing shipment of citrus within the state. The rules are in place to protect commercial citrus groves from the threat of huanglongbing (HLB) disease. Effective July 31, 2020, bulk citrus fruit may be shipped directly to a packinghouse …
Made in the Shade
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 …
California Ag Responds to COVID-19 Pressure
Now a COVID-19 hot spot, California agriculture has been working to protect its labor force from the pandemic. However, COVID-19 exposures have occurred and illness reports are on the rise. “Rising rates in the Central Valley are concerning. California is making $52M available to increase testing, contact tracing and quarantine efforts, and sending strike teams to four counties with increased …
IPM Approaches to Reduce Psyllid Populations
Lukasz Stelinski recently shared integrated pest management strategies for reducing Asian citrus psyllid (ACP) populations to optimize tree health and yield. The University of Florida Institute of Food and Agricultural Sciences professor of entomology and nematology presented the information during the 2020 virtual Florida Citrus Industry Annual Conference. Even with approximately 100 percent of Florida citrus trees infected with huanglongbing …
Win a $200 Bass Pro Gift Card at Citrus Expo
The Citrus Expo and Vegetable & Specialty Crop Expo are coming to you this year! The popular annual events will be virtual to present information to growers in a safe way against the backdrop of COVID-19. Join us for the virtual event on Aug. 19–20 as we bring the citrus, vegetable and specialty crop (VSC) industries together in this new …





























