Below you'll see everything we could locate for your search of “HLB”
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently hosted a field day and seminar on citrus under protective screen (CUPS) and individual protective covers at the Citrus Research and Education Center in Lake Alfred. While CUPS exclude the HLB-spreading Asian citrus psyllids from the structures, other pests can slip through the mesh barrier and cause problems. …
The November issue of Specialty Crop Grower magazine features a Citrus Industry section with insights on protected production, promising citrus genetics, industry research priorities and more. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers explore how the microclimate inside citrus under protective screen structures contributes to higher yields and better fruit quality. Research shows that the screens …
Citrus under protective screen (CUPS) provides citrus growers with a way to overcome the challenges of huanglongbing (HLB) disease. While grapefruit is the predominant variety grown in CUPS, research is underway to expand the varieties grown under screen. That’s one of the remaining CUPS research hurdles for Arnold Schumann, professor of soil fertility and water quality at the University of …
By John M. Chater Huanglongbing (HLB) has changed the citrus landscape in Florida in many ways. One important consideration is rootstock selection. HLB affects the growth rate of a citrus tree substantially. Trees grow at a much slower rate on average compared to healthy trees. In the citrus under protected screen (CUPS) environment, trees can grow faster than a healthy …
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently hosted a citrus under protective screen (CUPS) and individual protective covers (IPCs) field day at the Citrus Research and Education Center in Lake Alfred. The two approaches have proven effective in excluding the Asian citrus psyllid and HLB disease from trees. During the event, a panel discussion featured …
The U.S. Department of Agriculture announced Oct. 13 it is awarding $86.6 million in grant funding to support the specialty crop industry through the Specialty Crop Block Grant Program. The funding includes citrus-specific projects in Arizona, California, Georgia, Louisiana and Texas. ARIZONA University of Arizona Yuma Agricultural Center has funding of $94,506 to deploy two real-time flux tower systems in …
The 2026 Citrus Achievement Award winner, Ned Hancock, has seen his groves and acreage decline over the past 20 years as HLB has ravaged the Florida citrus industry. But he believes there are some positive signs pointing the industry in the right direction. This year’s final crop estimate, putting production slightly ahead of the previous year, was among those positive …
Citrus growers and researchers know that oxytetracycline (OTC) trunk injection can reduce the amount of the bacterium associated with huanglongbing (HLB) disease and improve fruit production and juice quality. However, new research shows the treatment also causes changes in microbial functions around citrus roots. Researchers conducted a field study in a commercial Southwest Florida orchard containing 8-year-old Valencia sweet orange …
Sponsored Content ReMedium TI® was introduced to the Florida market in January 2023. Since its introduction, citrus producers have experienced a steady recovery from citrus greening disease, also known as huanglongbing (HLB), one of the most significant challenges facing the Florida citrus industry. Across Florida, growers are reporting renewed optimism about the potential for recovery and future growth of the …
By Peter Chaires Growers and nurserymen have come to understand that citrus breeding is a continuum. It can’t be turned on and off like a light switch. Though priorities of emphasis, available techniques, tools and technologies may change, large shifts in breeding objectives take time and can produce delays and inefficiencies. Making crosses is a relatively quick process. Knowledgeable breeders …
In the long battle against HLB, there have been no tactics as successful at safeguarding citrus trees as protective screen. Citrus under protective screen (CUPS) structures can exclude the Asian citrus psyllid (ACP) and HLB from entire blocks, while individual protective covers (IPCs) can keep individual trees free of HLB for the critical first few years after planting. In early …
Sponsored Content In the ongoing battle against citrus greening (also known as huanglongbing or HLB), a disease that has devastated Florida’s citrus industry, the trunk-injection product ReMedium TI® has demonstrated promising performance. Since its commercial release in January 2022, ReMedium TI® has continued to generate interest and optimism among Florida citrus growers seeking economically viable tools to manage the disease. Recent research …
Florida Fruit & Vegetable Association (FFVA) recently presented Kim Bowman its 2026 Researcher of the Year Award. For more than 30 years, Bowman has led citrus rootstock research at the U.S. Department of Agriculture, Agricultural Research Service, U.S. Horticultural Research Laboratory in Fort Pierce, Florida. He has worked to develop innovative solutions to improve citrus production and help growers address …
By Prudhvi Vulchi, Amit Levy and Tripti Vashisth A three-year commercial grove study evaluated plant growth regulators (PGRs) and oxytetracycline (OTC) in HLB-affected Valencia trees. The results suggest that these practices help HLB-affected trees by two distinct mechanisms. PGRs mainly supported tree growth and productivity by reducing callose accumulation and improving growth-promoting hormone levels in leaves. OTC reduced Candidatus Liberibacter …
During a recent webinar, Jude Grosser, University of Florida Institute of Food and Agricultural Sciences professor of plant cell genetics, presented a three-legged stool approach to achieving sustainability in citrus production. Those legs consist of: For the first two legs, Grosser said enhanced tolerance to HLB is a primary goal, along with improving yield and juice quality. During the presentation, …
Chinese researchers have developed a nanoparticle-based formulation that combines an insecticide and a plant-derived repellent to provide longer-lasting control of HLB-spreading Asian citrus psyllids (ACP). An article about their study, published in Nanomaterials, explores a way to extend pesticide effectiveness while reducing damage to citrus leaves. The article was written by Wenhua Rao, Qianying Li, Kaidi Wang, Chao Shen, Guocheng …
By Tripti Vashisth, Mary Sutton and Taylor Livingston Author’s note: This Tip of the Week applies to HLB-affected sweet oranges in Florida. Preharvest fruit drop remains a major concern for HLB-affected sweet oranges. Research shows that both gibberellic acid (GA) and 2,4-D can help reduce fruit drop, but the combination of GA and 2,4-D provides the greatest reduction. In a …
Despite cancer-related ills in recent years, citrus breeder Fred Gmitter continued his work passion, which included development of trees that were more tolerant of or resistant to HLB. “That was our mission,” said Jude Grosser, his fellow citrus breeder at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center. Grosser said Gmitter continued …
Editing a plant’s genes is only half the battle. Before a new, improved trait can ever reach a farmer’s field, scientists must be able to grow a whole plant from just a few edited cells. That process can be slow, unreliable and, for some plant species, impossible. A new study describes a way to speed up that bottleneck across crops, …
By Christopher Vincent and Rashmi Kumari Florida summers come with intense sunlight, high temperatures and frequent rain. Just as people use sunscreen to protect exposed skin from intense sunlight, plants can benefit from a protective coating on exposed leaf and fruit surfaces. One way to provide this protection is by spraying a kaolin clay particle film on the tree. Although …
