Although often ignored due to their intangible nature, microorganisms play significant roles in agriculture. The natural microbial processes allow for long-lasting interactions between nutrients, plants and soils. Masanori Fujimoto, assistant professor at the University of Florida, is leading a research and education project titled “Harnessing Microbes for Sustainable Food Production.” The project is funded by the U.S. Department of Agriculture’s …
Five Years of Fresh Fruit Production in CUPS
By Arnold Schumann, Laura Waldo, Napoleon Mariner and Timothy Ebert According to the U.S. Department of Agriculture (USDA), Florida grapefruit production for the 2019–20 season was only 12 percent of the production recorded in 2003–04, prior to the arrival of huanglongbing (HLB) disease in the state. A major goal of the University of Florida Institute of Food and Agricultural Sciences …
Marketing OJ Amidst COVID-19
Each month, the Florida Department of Citrus (FDOC) and partner agency, Edible, dig deep into current consumer behaviors to gain insights on how messaging and marketing programs could be adapted for the greatest success. In a recent webinar, Kim McAndrews, senior vice president and food and beverage strategic planner for Edible, discussed the rapidly changing environment of COVID-19 and the …
Genome Sequencing and Other UF Research
Michael Rogers discusses the importance of the recent sequencing of the trifoliate orange genome by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers and others. He also tells how growers can learn more about UF/IFAS research funded by the Florida Legislature. Rogers is director of the UF/IFAS Citrus Research and Education Center (CREC) in Lake Alfred and …
Sudden ACP Increase in California Worrisome
To the surprise and consternation of growers and officials, 74 Asian citrus psyllids (ACP) have been discovered in Kern County, California, since June. Local and state officials are concerned about the recent uptick in trappings and are working to find how extensively the infestation has spread. The trappings have been equally dispersed in residential and commercial citrus. Staff from the …
Black Spot Likely in More Florida Counties
Although citrus black spot has only been detected in commercial groves in five Southwest Florida counties, it is still spreading and likely to be in additional counties, according to plant pathologist Megan Dewdney. The five counties with detections are Charlotte, Collier, Glades, Hendry and Lee. Dewdney is a University of Florida Institute of Food and Agricultural Sciences associate professor at …
Proving COVID-19 Isn’t Foodborne
When the COVID-19 pandemic became news in the United States early this year, some consumers and others wondered if it might be spread by food or food packaging. Food scientist Michelle Danyluk says there is no epidemiological evidence that COVID-19 is spread that way. “But epidemiological evidence isn’t the same as hard science data,” she adds. Consequently, she and other …
Emerging Trunk Disorders
By Evan Johnson and Megan Dewdney The last two years have seen increasing grower questions and reports of citrus trunk disorders in Florida. Sometimes these reports are associated with sudden tree collapse. In many cases, phytophthora foot rot is initially suspected. Typically, the symptoms don’t quite match those of foot rot, and phytophthora cannot be isolated from the lesion. If …
Boosting Citrus Tree Immunity to Combat HLB
By Manjul Dutt, Juliana Soares and Jude Grosser Land plants such as citrus are generally anchored to a specific location by their roots. Owing to their immobile nature and constant exposure to pathogenic microbes, plants are very vulnerable. However, you might be surprised by how much plants can protect themselves and survive against multiple adversities encountered during their lifetime. A …
Using CRISPR for HLB Resistance
Use of CRISPR (clustered regularly interspaced short palindromic repeats) technology has already produced trees that are highly resistant to citrus canker. In a Citrus Expo virtual presentation, microbiology and cell scientist Nian Wang reported on work that is being done with CRISPR to develop tree resistance to HLB. Wang is a University of Florida Institute of Food and Agricultural Sciences …
Citrus Advisory System Provides PFD Alerts
Beep. Beep. Beep. That’s the sound of an alert telling a citrus grower it’s time to spray fungicide to help prevent fruit from falling off the tree due to postbloom fruit drop (PFD). University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have developed a Citrus Advisory System (CAS) that sends web-based alerts to growers via mobile devices. …
UF/IFAS Gets $4.5M to Continue HLB Fight
Three teams of scientists from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently received nearly $4.5 million in U.S. Department of Agriculture (USDA) funds to study new ways to manage HLB. The funding is part of the $45 million in grants the USDA National Institute of Food and Agriculture’s Emergency Citrus Disease Research and Extension Program …
All In For Citrus Podcast, October 2020
An exciting development with genome sequencing, timely research in the face of COVID-19 and an update on sting nematode research headline October’s All In For Citrus podcast. Citrus Research and Education Center Director Michael Rogers details the benefits of recent news about the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) mapping the trifoliate orange genome. He says …
USDA Grants $45 Million for HLB Research
The U.S. Department of Agriculture’s National Institute of Food and Agriculture (USDA-NIFA) recently awarded 12 grants totaling more than $45 million for research to combat HLB. “USDA-NIFA’s Emergency Citrus Disease Research and Extension Program (ECDRE) brings the nation’s top scientists together to tackle this problem,” said Parag Chitnis, NIFA’s acting director. Following are the 12 ECDRE projects funded by USDA-NIFA …
Enhancing Soil Health With Cover Crops
By Sarah Strauss, Antonio Castellano-Hinojosa, Davie Kadyampakeni, Ramdas Kanissery and Tara Wade Soil health is generally synonymous with soil quality and refers to the capacity of a soil to sustain biological productivity, maintain environmental quality and promote plant health. Soils are complicated ecosystems, and discussions of soil health must consider the links between soil functions and soil-based ecosystem services, such …
Task Force Sounds Alarm on ACP Finds
California’s ACP/HLB San Joaquin Valley Task Force reports that an increased number of Asian citrus psyllid (ACP) trap finds have occurred in the southern part of Kern County. The task force made the announcement in an open message to all citrus growers in the San Joaquin Valley. It was published on the Citrus Insider website on Oct. 16. Last month …
Potential Trap Crop for Asian Citrus Psyllid
Pakistan entomologist Muhammad Arshad reported on work that opens the possibility of further studies to determine the potential of Cordia myxa as a trap crop to manage Asian citrus psyllid (ACP) and, ultimately, to reduce HLB disease. C. myxa, also known as Assyrian plum or lasura, is a broad-leaved deciduous fruit tree. In trap cropping, plants are used to attract …
CTV Technology Getting Closer to Growers
Including recent news about a peptide derived from finger limes, researchers have found many compounds over the last several years that could help growers manage or even fend off huanglongbing (HLB) disease. University of Florida Institute of Food and Agricultural Sciences Research Assistant Scientist Choaa El-Mohtar and his team have developed a new way to see how compounds can possibly …
Stem Pitting Could Develop in Florida Citrus
Citrus tristeza virus (CTV) stem pitting, which causes severe problems in Asia and other places, could develop in Florida, according to plant pathologist Amit Levy. The University of Florida Institute of Food and Agricultural Sciences researcher at the Citrus Research and Education Center discussed the disease at this year’s virtual Citrus Expo. Noting that “early detection is essential,” Levy said …
Sequencing Brings HLB Resistance Closer
University of Florida (UF) scientists achieved a major milestone in their quest to develop an HLB-resistant tree by sequencing the genome of a fruit plant that’s a close cousin to citrus trees. HLB is also known as greening disease. UF Institute of Food and Agricultural Sciences researchers sequenced the genome from trifoliate orange, in collaboration with scientists from the University …