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Below you'll find a list of all posts that have been categorized as “Research”
A group of scientists working in California, New York and Washington has found that Lisbon lemon trees had less of a molecular response than Washington navel orange trees to the pathogen that causes HLB. That pathogen is Candidatus Liberibacter asiaticus (CLas). In part, this might be because leaves of infected lemons tended to accumulate micronutrients, which led to less of …
By Ute Albrecht and Leigh Archer Trunk injection is a targeted delivery of materials into the stem or trunk of trees as an alternative to spraying or soil drenching. It is practical for disease and pest management in high-value forest trees and ornamental plants where aerial applications are problematic because of environmental and human health-related concerns. Interest in using the …
New research affirms a unique stable antimicrobial peptide (SAMP) found in an Australian plant can destroy HLB and help prevent infection. Hailing Jin, University of California Riverisde geneticist who led the research, shared the exciting discovery during the 2021 Florida Citrus Show. The naturally occurring peptide is found in HLB-tolerant citrus relatives, such as the Australian finger lime. The peptide …
Researchers at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) are taking a whole-systems approach to update current recommendations for new plantings. A research project, “Establishing Healthy Citrus Plantings in the Face of Persistent HLB Pressure,” is led by UF/IFAS entomologist Lauren Diepenbrock. According to Diepenbrock, current guidelines were created pre-HLB and therefore are out of date …
“We’ve come a long way in the time that we’ve had HLB here in Florida,” says Michael Rogers. The director of the University of Florida Institute of Food and Agricultural Sciences’ (UF/IFAS) Citrus Research and Education Center says early HLB research “covered a wide range of topics.” Now, however, “We’re really narrowing down things that are of use to growers …
The Citrus Research and Development Foundation (CRDF) received 59 proposals for funding of projects in response to the organization’s recent request for proposals (RFP). “This is the best RFP we’ve ever done since I’ve been here,” said CRDF Chief Operating Officer Rick Dantzler. The deadline for submitting proposals was April 26, a day before the CRDF’s board of directors …
By Nabil Killiny and Christopher Vincent The citrus industry has suffered numerous setbacks over the past 20 years because of the devastating effects of huanglongbing (HLB) disease. Many options for controlling the disease are being investigated to make groves as productive as possible under the current HLB pressure. Even small improvements in tree health or yield of diseased trees may …
In plants grown for food or other purposes, longer lasting enzymes could translate into increased yields, according to Andrew Hanson, University of Florida Institute of Food and Agricultural Sciences eminent scholar and professor. Hanson is the lead author of a recently published study in which researchers present a new benchmark for evaluating the durability of any enzyme. “Replacing enzymes is …
For a citrus under protective screen (CUPS) production system to be profitable, the cost of the system must be offset by high yields of premium-quality fresh fruit with strong market prices. Researchers at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) have expanded their CUPS research trials to investigate management strategies that improve fruit quality and yield. …
Researchers at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) are using RNA interference (RNAi) to alter field populations of the Asian citrus psyllid (ACP). Nabil Killiny, UF/IFAS associate professor, shared the latest findings from his team’s RNAi research in a recent All In For Citrus podcast episode. He says the team is using RNAi to attack …
Researchers have been looking for ways to help Florida citrus growers fight HLB, and spreading oak mulch around the drip line of citrus trees appears promising. Lukas Hallman, a graduate student at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC) is doing research to find what is in oak trees …
Citrus Research and Development Foundation (CRDF) directors on March 23 voted to request research proposals from scientists in nine topic areas for the coming year. The nine areas, mostly focusing on HLB, are: Understanding the mechanisms for increasing fruit retention in HLB trees by manipulating hormonal balance in the fruit and the tree or by altering the relationship between vegetative …
While whole fruit consumption increased in adults between 2003 and 2016, the intake of several key nutrients decreased over time, a new study shows. Adding 100% orange juice (OJ) to the diet could help address this shortfall and bolster intake of other key nutrients found in OJ. A cross sectional analysis using the nationally representative National Health and Nutrition Examination …
At the March Florida Citrus Commission (FCC) meeting, Gail Rampersaud summarized recently published studies showing that orange juice (OJ) contributes to good health. Rampersaud, a registered dietitian nutritionist, told the FCC, which governs the Florida Department of Citrus, about five ways the studies showed OJ is beneficial: Body Weight: Research shows that 100% OJ or fruit juice consumption is not …
Trials of containerized satsuma trees grown in a screened facility will soon begin in Louisiana, reported Louisiana State University (LSU) AgCenter horticulture Extension agent Anna Timmerman. She discussed the trials during the recent virtual 2021 LSU AgCenter Citrus Symposium. Research objectives include determining optimal planting density and yield. Field days for growers will likely be conducted in 2022, and a …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus researchers are collaborating on ground-breaking research projects to fight against HLB. They are working with researchers at the University of California-Riverside (UC-Riverside), Texas A&M and Washington State University on a project to field-test new citrus cultivars for tolerance or resistance to HLB. The research is funded by the U.S. …
The Australian finger lime, a citrus relative, could be a new specialty crop for Florida citrus growers. Traditionally, finger limes have remained rare in the United States, grown few and far between. However, the fruit’s unique tolerance to HLB is becoming increasingly attractive to Florida growers. Manjul Dutt, research assistant scientist at the University of Florida Institute of Food and …
The Citrus Research and Development Foundation (CRDF) is establishing a new project to evaluate the most promising citrus rootstocks in grower field trials. The rootstock trials are projected to be planted in the spring or summer of 2022. The goal will be to identify plant material with the traits needed for growers to realize the highest possible pound solids per …
Fruit left on the ground is a waste for growers and consumers alike, and Florida’s citrus industry certainly cannot afford to leave any fruit behind. Citrus fruit drop before harvest has been particularly challenging during the 2020-21 Florida growing season. That is why Fernando Alferez, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus horticulturist, is researching strategies …
Fermented food waste converted to liquid fertilizer and fed through drip irrigation can boost bacteria that increase crop growth, according to a new University of California Riverside (UCR) study. The treatment may also make plants more resistant to pathogens. “Beneficial microbes increased dramatically when we added fermented food waste to plant growing systems,” said UCR microbiologist Deborah Pagliaccia, who led …
