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Below you'll see everything we could locate for your search of “hlb”
University of Florida Institute of Food and Agricultural Sciences researcher Rhuanito (Johnny) Ferrarezi discussed the use of soil moisture sensors at a recent grower workshop in Sebring. He summarizes that presentation, which included a discussion of how the sensors can help in the face of HLB. “The main goal of using soil moisture sensors is to increase irrigation efficiency,” Ferrarezi …
More than 20 growers and others attended a tour on Oct. 11 at Whitmore Farm near Groveland in Lake County, Florida. Breeding for HLB tolerance or resistance is the primary goal of research at the farm. “Whitmore Farm was established in the mid-1950s as a foundation farm,” says Brian Scully, who led the tour and discussed research. Scully is director …
Growers attending a recent workshop in Sebring learned how to evaluate the root systems of HLB-infected trees. University of Florida Institute of Food and Agricultural Sciences researcher Evan Johnson was the instructor. Johnson said evaluation of root systems is important because “HLB is causing a lot of damage to the root system … It’s important to know how the pests …
At Citrus Expo in August, Eric Triplett presented research from a variety of sources that shows foliar phosphate fertilization reduces HLB symptoms. Triplett is a University of Florida Institute of Food and Agricultural Sciences professor and chair of microbiology and cell science. “If it’s true that we can reduce the symptoms and disease in citrus by foliar phosphate fertilization, the …
By Len Wilcox Early detection has become a vital line of defense in the California citrus grower’s war with huanglongbing (HLB) disease. Without careful monitoring, any tree in the grove can become a ticking time bomb that could lead to destruction of the entire orchard. The disease starts unnoticed. Many months can pass before a tree displays any visible evidence …
University of Florida Institute of Food and Agricultural Sciences researcher Tripti Vashisth told growers at a citrus workshop in Sebring on Sept. 25 how to maintain proper soil pH for HLB-infected trees. She said HLB-affected trees seem to perform best when soil pH is 6.0. Vashisth said pH levels need to be adjusted continuously. “Our soils are known to be more …
Many growers in recent years have used bactericides in an effort to reduce HLB infection in their groves. University of Florida Institute of Food and Agricultural Sciences researcher Kirsten Pelz-Stelinski reports on use of bactericides to reduce both the bacteria that causes HLB and the psyllids that spread it. In greenhouse studies, she reports, bactericides appeared to offer “some reduction” …
A system designed to protect citrus trees from the deadly greening disease withstood the ravaging winds of Hurricane Irma last year, University of Florida scientists say. With reinforcements installed after the storm, they’ll likely withstand even more dangerous storms. Using citrus under protective screening (CUPS), growers can keep the Asian citrus psyllids away from their trees, said Arnold Schumann, a …
By Laura Reuss, Fred Gmitter and Yu Wang Sweet orange and mandarin fruits are the most popular citrus crops worldwide. Although often mistakenly considered one and the same, oranges and mandarins are different species with specific distinctions. For instance, mandarins are smaller and easier to peel than oranges. Additionally, mandarins are primarily eaten as fresh fruit, whereas most sweet oranges …
By Tripti Vashisth and Lisa Tang Fruit drop is a natural, physiological phenomenon that occurs in all citrus varieties. However, pre-harvest fruit drop often causes grower distress and concern as it can result in significant yield reduction as well as loss of tree resources into non-harvested fruit. THREE PERIODS OF FRUIT DROP In general, citrus trees bloom profusely in spring, …
University of Florida Institute of Food and Agricultural Sciences researcher Jim Graham shares preliminary results from a new trial aimed at protecting trees from HLB infection at the Southwest Florida Research and Education Center. During the first five months of the trial, individual protective covers (IPCs) successfully kept psyllids off young trees and delayed HLB infection. Trees under the covers …
The use of canines or “sniffer dogs” is again being investigated by the U.S. Department of Agriculture (USDA) for early detection of HLB-infected trees. Through the HLB Multi-Agency Coordination (MAC) program, USDA Animal and Plant Health Inspection Service (APHIS) has invested millions of dollars in the research and training of detector canines for finding HLB-positive trees. A recent full-day meeting in …
Larry Black, president of Florida’s Citrus Research and Development Foundation (CRDF), attended a recent meeting in Fort Pierce to discuss HLB research prioritization and funding. He joined officials with other agencies that fund HLB, including California’s Citrus Research Board (CRB) and the U.S. Department of Agriculture (USDA). Black says the agencies met “to look at ways we can be more …
Gary Schulz, president of the Citrus Research Board in California, discusses a recent meeting of agencies that fund HLB research. Representatives of Florida’s Citrus Research and Development Foundation and the U.S. Department of Agriculture also attended the two-day session in Fort Pierce, Florida. According to Schulz, the National Academy of Sciences within the past year recommended “that funding agencies for …
University of Florida scientists think a group of hormones may eventually help growers battle citrus greening, but they still want to study them before recommending growers use the chemical. Fernando Alferez, an assistant professor of horticultural sciences at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), leads a team of UF/IFAS researchers studying the effects of Homobrassinolides …
Yield and fruit size are not good measurements of the nutrition needs of HLB-affected trees, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have discovered. “So we decided to go with something that’s fruit independent for the study,” says UF/IFAS scientist Arnold Schumann of the Citrus Research and Education Center at Lake Alfred. Schumann says he and …
A Texas A&M AgriLife Research scientist at Weslaco will lead a consortium of researchers in major citrus-producing regions to conduct high-throughput screening in discovering antimicrobials that could prevent citrus greening. Citrus greening, also known as huanglongbing (HLB) disease, has devastated citrus fruit crops in Florida and has made its way to Texas and California. The research grant of approximately $1.2 …
Moments after being chosen on July 24 as the next chief operations officer of the Citrus Research and Development Foundation (CRDF), Rick Dantzler declared the industry will “whip” HLB. He chose Aug. 15 as his first day of work so he can meet many growers at Citrus Expo. “I wanted my first day on the job to be with citrus …
Harold Browning with Premier Citrus ApZ updates his company’s efforts to make bactericides more effective against HLB. He says Premier is “trying to move to commercialization as quickly as possible a technology to improve the absorption of materials that would kill HLB bacteria in infected trees.” “One of the challenges we face in trying to get materials into the phloem …
University of Florida Institute of Food and Agricultural Sciences researcher Ariel Singerman led efforts to analyze the economic viability of planting at different tree densities under endemic HLB conditions. The analysis describes the establishment and production costs of a new grove for three tree planting densities under different market conditions. “Excel files containing the analysis and a companion file describing …
