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Below you'll see everything we could locate for your search of “greening”
By Kelly T. Morgan, Davie Kadyampakeni and Tripti Vashisth This article reviews current University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus fertilizer recommendations and provides updated information about recently approved recommendations for secondary macronutrients and micronutrients. Citrus growers have been very concerned about fertilizer applications and nutrient management since citrus greening (huanglongbing or HLB) was found in …
Sometimes the most niche plant pathogen packs the greatest punch. Such is the case for the Florida citrus industry, which has seen a 70% decline in its orange production since the introduction of HLB in 2005. HLB is also known as citrus greening disease. The bacteria Candidatus Liberibacter asiaticus cause this disease, which spreads via a flying insect. When the …
A grant from the U.S. Department of Agriculture’s Organic Agriculture Research and Extension Initiative (OREI) is intended to advance research to help organic citrus producers fight HLB. The grant awards $2.03 million to a team of scientists from the University of Florida, Texas A&M University and The Organic Center. The Organic Center is a non-profit organization convening evidence-based science on the …
Two citrus growers recently explained the benefits to be gained from research at the Indian River Research and Education Center’s (IRREC) Millennium Block in Fort Pierce, and a scientist discussed a grapefruit study there. The IRREC is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) facility. The 20-acre block was planted in 2019 to help growers find …
Purdue University’s Kurt Ristroph has received a $1 million federal grant to develop nanocarriers as an antibiotic delivery system to help plants fend off citrus greening disease, also known as HLB. The grant is part of the 21.7 million recently awarded for HLB research from the U.S. Department of Agriculture’s National Institute of Food and Agriculture. “The mixing technology we’re …
The focus of citrus breeding at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) differs for fruit produced for the juice market vs. fruit for the fresh market. Citrus breeder Jude Grosser, a UF/IFAS professor of plant cell genetics, spoke during the Cold-Hardy Citrus Field Day at the North Florida Research and Education Center in Quincy on …
By Kirsten S. Pelz-Stelinski and Lukasz L. Stelinski Managing Asian citrus psyllids (ACP) remains a consideration for growers because psyllids transmit the citrus greening disease pathogen, Candidatus Liberibacter asiaticus (CLas), to newly planted trees. There are several tools that can reduce psyllid populations or mitigate the symptoms of HLB and improve the health of infected trees. However, additional methods that …
By Chris Oswalt Growers may have compelling reasons to collect and analyze citrus leaf samples at different times of the year. Current tables allow growers to interpret the results of their citrus leaf analysis based on the collection and analysis of 4- to 6-month-old leaves from non-fruiting twigs (Figure 1). This begs the question of the potential consequences of interpreting …
Immediately following the lowest federal crop forecast for Florida citrus in many decades, Florida Agriculture Commissioner Nikki Fried and Florida Department of Citrus Executive Director Shannon Shepp expressed optimism that the industry will strive to recover. Their statements referred to Hurricane Ian, which destroyed much fruit and damaged trees in major portions of the state’s citrus belt. The U.S. Department …
Editor’s note: This Q&A was conducted prior to Hurricane Ian striking Florida. After the storm, Matt Joyner said that Florida Citrus Mutual is working with growers in the recovery process and collecting information to aid in any potential requests for assistance. Matt Joyner started with Florida Citrus Mutual (FCM) in December of 2018 as director of government relations. In April …
The severe impacts of recent storms are layered on top of the complex set of challenges already facing U.S. citrus growers—especially in Florida. From high input costs to domestic supply shortages, the unmatched devastation caused by citrus greening disease, and now the recovery efforts needed post-hurricane, growers need holistic solutions–and they need them fast. The good news is that breakthrough …
Conclusive data on trials in the Millennium Block, expected in early 2023, may reveal which of more than 5,500 trees can tolerate HLB, researchers say. The Millennium Block is at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC) in Fort Pierce. IRREC Director Ronald Cave said the 20-acre grove, established …
The average incidence of HLB rose from 22.37% in 2021 to 24.42% in 2022 in Brazil’s citrus belt, an annual survey by Fundecitrus shows. That’s an increase of 9.16%. In the regions of Brotas, Limeira and Porto Ferreira, where the incidence was already high in previous years, HLB increased to even more worrying levels of 49.41%, 70.72% and 74.05%, respectively. …
By J. Scott Angle, jangle@ufl.edu, @IFAS_VP Just as HLB can affect fruit flavor, so can our numerous innovations to manage HLB. Yu Wang works to make sure our solutions are sweet. When the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) hired her as a flavor chemist seven years ago, Wang worked primarily with breeders. Her objective was …
Florida Citrus Mutual (FCM) has been working with product registrants to gather industry support for two 24(c) label requests being presented to the Florida Department of Agriculture and Consumer Services (FDACS). REMEDIUM TIThe first request, from TJ BioTech, is related to the use of ReMedium TI via injection in citrus trees suffering from citrus greening. Research has proven oxytetracycline injection …
By Jawwad A. Qureshi and Salman Al-Shami The citrus under protective screen (CUPS, Figure 1) system is designed so citrus can grow inside screened enclosures to protect it from huanglongbing (HLB) and the Asian citrus psyllid (ACP, Diaphorina citri). ACP is the primary vector of the pathogen responsible for causing HLB, known as citrus greening disease. This vector-pathogen combination is …
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC) will host a Millennium Block Variety Trial Field Day on Oct. 19. The event will be held from 9 a.m. to noon. The Millennium Block is at 7850 Pruitt Research Road in Fort Pierce. Registration can be completed online here or by …
SUMMARY: Many Florida citrus growers have made the decision to shift their focus away from saving older HLB-infected trees and toward protecting and strengthening young citrus trees, using soil probiotics, before too much damage is done. Understanding citrus trees’ vascular systemsCitrus trees have developed a complex but effective circulatory system for the uptake, storage, and utilization of water and nutrients. …
The onset of rains in several regions of Brazil’s citrus belt has made it necessary for growers to pay added attention to citrus greening, Fundecitrus reported. The association of citrus growers and juice manufacturers from the state of São Paulo said the extra attention is needed due to the increase in greening-spreading psyllid populations in this period. Fundectirus reported that …
By Yiannis Ampatzidis and Sandra M. Guzmán Pests and diseases, nutrient deficiencies, tree stress from environmental conditions and other factors can be overwhelming. The arrival of sensors and small unmanned aerial vehicles (UAVs) make it possible to gather large amounts of data to assess risk factors and estimate possible crop performance scenarios based on the availability of resources. At the …
