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Below you'll see everything we could locate for your search of “disease”
By Xavier Martini and Peter Andersen Cold-hardy citrus has a long history in North Florida, Alabama, Louisiana and Georgia. Records show that sweet orange, citron, lemon, lime and pummelo were brought to Saint Augustine, Florida, from Spain in 1565. However, it was not until the late 1700s that the Jesuits introduced satsuma (Citrus unshiu) to what is now Louisiana. SATSUMA …
By Brian German The Spring Citrus Meeting held last week in Tulare County touched on several major issues growers are concerned with, and included presentations on best practices for managing citrus trees. The day began with important information related to Asian citrus psyllid (ACP) and the disease it causes, huanglongbing (HLB), which has been growing at an alarming rate in …
By Rhuanito S. Ferrarezi, Jude W. Grosser, Fred G. Gmitter, Ed Stover and Kim Bowman Citrus is Florida’s most important agricultural commodity. The state produces citrus for different markets: round oranges for juice; navels, mandarins, grapefruit and lemons for the fresh-fruit industry; and lemons for extracting peel oil for processing. Huanglongbing (HLB) disease affects all citrus varieties. Since the discovery …
The biopesticide company, Certis USA, presented the non-profit Citrus Research and Development Foundation, Inc. (CRDF) with a check for $20,000 to help fund research projects in an effort to find a cure for huanglongbing (HLB; citrus greening). The presentation was made during the Florida Citrus Industry Annual Conference that took place at the Hyatt Regency Coconut Point Resort and Spa. …
By Ute Albrecht Commercial citrus rootstock propagation traditionally occurs via use of nucellar apomictic seed, which generates genetically identical seedlings that are used as liners for budding. With the high demand for superior rootstocks in the age of HLB, commercial nurseries are currently experiencing a shortage of seeds for some of the most popular rootstock varieties. In addition, for many …
A weed garden established this spring beside the Southwest Florida Research and Education Center in Immokalee is intended to help growers, Extension agents and others identify weeds in the grove. “The key ingredient in a weed management toolbox is to correctly identify the weed,” says Ramdas Kanissery, weed scientist at the center. “We’d like to invite groups to this garden. …
University of Florida Institute of Food and Agricultural Sciences researcher Jude Grosser discusses small experiments that indicated manganese and boron can help citrus trees cope with HLB. In a greenhouse experiment from a few years ago, HLB-infected sweet orange trees were overdosed with micronutrients and secondary nutrients. “It looked like … manganese had the biggest effect on growth of the …
Growers discuss lessons learned from Hurricane Irma, replanting plans, grove rehabilitation, crop insurance and more. By Tacy Callies Florida citrus growers awaiting Hurricane Irma federal aid and insurance payouts are doing their best to keep crops healthy until more money is available. Paul Meador, citrus grower and head of Everglades Harvesting & Hauling in LaBelle, took a big hit from …
Column sponsored by the Citrus Research and Development Foundation (CRDF) On April 24, the CRDF board of directors approved research priorities for two separate research funding programs. One is for projects that will lead directly to the development of commercial products, tools or recommendations (Commercial Product Development Committee, CPDC-18). The other is for projects with broader, fundamental researchable questions (Research …
“If you want to survive, you have to plant” is a common sentiment heard among Florida citrus growers. The June issue of Citrus Industry magazine examines several issues of interest related to new plantings. In the cover story, Editor Tacy Callies speaks with citrus growers recovering from Hurricane Irma and shares details about their replanting plans. Other topics discussed in …
University of Florida Institute of Food and Agricultural Sciences researcher Christopher Vincent says kaolin clay outperforms foliar insecticides for management of HLB-spreading psyllids at times when kaolin’s use is practical. His presentation on the topic followed the Citrus Research and Development Foundation (CRDF) meeting on May 22 at the Citrus Research and Education Center in Lake Alfred. The presentation, part …
By Len Wilcox There’s a new research facility funded by California citrus growers to help combat huanglongbing (HLB), also known as citrus greening disease. The facility, located in Riverside, California, is the result of a 3-year cooperative effort of the University of California, Riverside (UC Riverside) and California citrus growers. Using funds provided by members of California Citrus Mutual (CCM), …
A male peach fruit fly, Bactrocera zonata (Saunders) (Tephritidae), was captured in a fruit fly detection trap on May 9 in Lake Worth, Florida, in Palm Beach County. A second male was captured about 1.25 miles away, also in Lake Worth on May 10. This is only the second time that this pest species has been found in Florida. A …
The total economic impact of California’s citrus industry is $7.117 billion according to a new study commissioned by the Citrus Research Board (CRB). “In updating our economic analysis, we selected a well-known expert, Bruce Babcock, Ph.D., a professor in the School of Public Policy at the University of California, Riverside, to conduct the research. His findings quantified the significant impact …
By Fred Gmitter, Yi Zhang and Jude Grosser It is very likely that you have heard about the use of CRISPR technology and its great potential for addressing human health issues, as well as the promise it holds for providing solutions for major agricultural challenges, particularly for huanglongbing (HLB) in citrus. Granting agencies are supporting many citrus research projects aimed …
Lemon grower Mike Litvany shares his experience growing lemons for the past 20 years in North Central Florida. Litvany has been in the Florida citrus industry since 1975. He says, “What happened to the Florida citrus industry has happened to me; it’s all pretty much disappeared.” His 20-acre lemon grove is 7 miles south of Clermont, east of U.S. 27 …
By Amit Levy and Choaa El-Mohtar When thinking about genetic engineering, the first thing that comes to mind is usually GMOs (genetically modified organisms) In a GMO, a plant genome is engineered to include additional genetic sequences, usually genes with some useful activity that give the plant an advantage. This method is called a stable method because genes will be …
Greg Nelson, president of Egan Fruit Packing in Fort Pierce, Florida, summarizes the status of the fresh citrus industry and discusses opportunities for the future. “We’ve seen a slight decline in fresh orange consumption over the past 20 years, but a more significant, dramatic decline in fresh grapefruit consumption,” Nelson says. “But a lot of that is driven by lack …
Researchers at the University of California, Riverside (UCR) claim they have made an important step in understanding the molecular mechanism of huanglongbing (HLB). They believe they have found the mechanism by which the disease evades detection and destruction by the natural immune system of citrus trees. HLB, or citrus greening disease, has devastated groves in Asia, South America and the …
By John Arthington Column sponsored by the Citrus Research and Development Foundation Hello. I want to take this opportunity to introduce myself and my new role at the Citrus Research and Development Foundation (CRDF). As many of you are aware, Harold Browning retired as chief operations officer (COO) to pursue other opportunities in private industry. At that time, Larry Black …
