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Below you'll see everything we could locate for your search of “CTV”
Australian scientists are developing a vaccine-like solution to arm citrus growers with an effective way to combat citrus tristeza virus (CTV), a significant challenge for the Australian citrus industry. The $1.5 million initiative is being delivered through Hort Innovation and collaboratively led by the University of Queensland, the New South Wales Department of Primary Industries (NSW DPI) and Auscitrus. Researchers …
By Choaa A. El Mohtar Projected citrus production in Florida for the 2022–23 season is less than 20 million boxes. This is more than a 90% decrease compared to the 2003–04 season, which was around 292 million boxes. The main reason for the decrease is huanglongbing (HLB) disease. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus …
By Amit Levy Citrus tristeza virus (CTV) infects the citrus phloem. CTV infects almost all citrus varieties, but it causes different disease symptoms depending on the virus isolate, the citrus variety and scion-rootstock combination. Florida has three dominant strains of CTV: T36, a decline-causing strain T30, which normally does not cause severe disease VT, a stem-pitting causing strain CTV is …
University of Maryland virologist Anne Simon and the company she founded, Silvec Biologics, have successfully vaccinated laboratory hosts against citrus tristeza virus (CTV). They are now focusing on HLB, also called citrus greening. The vaccination induces trees to produce their own therapeutic agents. Silvec’s vaccination concept is based on the discovery of a novel infectious RNA that the company calls …
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 …
Shortly before HLB was discovered in Florida in 2005, many trees on sour orange rootstock were lost to citrus tristeza virus (CTV), which is transmitted by the brown citrus aphid. Sour orange rootstock was extremely susceptible to CTV, so many growers stopped using the rootstock. “Switching to non-sour orange rootstock eliminated the danger from CTV decline,” University of Florida Institute …
By Jawwad Qureshi A wide range of pests colonize citrus crops. Most of these species target tree canopies, and a few feed on the roots. Damage is either direct through feeding on the plant tissues or it can be twofold if the pest is also responsible for transmitting the pathogens of a disease or making conditions favorable for the disease …
The Citrus Research and Development Foundation (CRDF) board of directors acted on proposed research projects during its Oct. 26 meeting. “The board meeting was the culmination of the 2021 request for proposals (RFP) process,” CRDF Chief Operating Officer Rick Dantzler reported. “Of the 12 proposals considered, the board approved funding five as presented and requested revised budgets on two more. …
Citrus tristeza virus (CTV) is still present in Florida and can be transmitted to new trees, especially during brown citrus aphid outbreaks, according to the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). A presentation about surveying for CTV was available at the UF/IFAS booth during Citrus Expo in August. The presentation noted that switching to sour orange …
Scientists are hoping the RNA of an obscure infection can one day be used like a Trojan horse to deliver treatments to citrus trees, possibly to combat HLB disease. The infection, citrus yellow vein disease, was discovered 64 years ago in Riverside, California, and has never been seen elsewhere in the world. Decades later, University of California (UC) Riverside researchers …
“When a tree gets infected, there is generally no way to cure it,” University of Maryland virologist Anne Simon wrote in a recent white paper about invasive tree diseases. She explained that trees lack adaptive immune systems, so once infected they typically must tolerate the pathogen for the remainder of their lifespan. “In some cases, immunity can be provided by …
By Amit Levy, Peggy Sieburth and Ozgur Batuman When we hear or read about citrus tristeza virus (CTV), we usually think about the decline of sweet orange or grapefruit trees on sour orange rootstocks. However, there are other diseases caused by different isolates of the virus. One of these diseases is stem pitting, mostly caused by the VT isolate of …
While everyone strives to protect themselves from coronavirus disease, growers have an additional concern: protecting their trees from citrus disease. While HLB is of course the most damaging disease of citrus, there are other diseases that should not be overlooked. Disease management is the theme of the February 2021 issue of Citrus Industry magazine. University of Florida Institute of Food …
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 …
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 …
National recognition, new findings on black spot control, and research on antimicrobial peptides highlight the September episode of the All In For Citrus podcast. Citrus Research and Education Center Director Michael Rogers starts the episode with the announcement that the University of Florida was ranked in the top 10 of U.S. News and World Report’s Top Public Schools list. Rogers …
According to the Florida Department of Citrus (FDOC), sales of 100 percent orange juice (OJ) continue to show promising results. In the 4-week period ending Aug. 1, average year-over-year sales of total OJ increased 21 percent with 32.64 million equivalent gallons sold, per the latest Nielsen retail sales report. Sales of not-from-concentrate (NFC) OJ increased 27 percent for the period. …
By Manjul Dutt and Jude Grosser Finger lime, a distant relative of sweet orange and grapefruit, is a relatively new crop species for Florida. It is an Australian native species that has been gaining in popularity and importance in the last few years because of its unique fruit characteristics and disease tolerance, which sets it apart from conventional sweet orange …
By Jude Grosser, Fred Gmitter and Kim Bowman Two citrus breeding programs have identified several rootstocks that can currently be planted with confidence when combined with appropriate scions, including mid- and late-season oranges, and grown with emerging enhanced nutrition programs. These citrus breeding programs are at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education …
By Ozgur Batuman and Amit Levy Management options for huanglongbing (HLB) are limited and rely heavily on insecticides for controlling Asian citrus psyllid (ACP) populations, even when integrated with other cultural control methods. Chemical strategies are expensive and, if not rotated, can contribute to the development of chemical resistance among ACP populations. In some cases, long-term chemical applications may have …
