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Below you'll see everything we could locate for your search of “citrus canker”
At the latest Citrus Research and Development Foundation (CRDF) board of directors meeting, funding was approved for a project by Robert Turgeon. He is a professor of plant biology at Cornell University. “Dr. Turgeon is considered by some to be the world’s foremost expert on phloem physiology. If his project succeeds, it could solve our problem with HLB,” CRDF chief …
The total Brazilian orange crop for marketing year 2022–23 is forecast at 405 million boxes (MB), a reduction of 10 MB compared to the previous season. The commercial area in the state of São Paulo and the western part of Minas Gerais should account for 305 MB, a drop of 3% from the prior year. Production from other states is …
The Citrus Research and Development Foundation (CRDF) met for its December board meeting to discuss several topics before heading into the new year. One of the bigger areas of discussion was what to do with available uncommitted funds. “The board decided to fund work on several questions growers have regarding the use of bactericides inserted through systemic delivery devices and …
By Brenda Eubanks Burnette It’s hard to imagine how the early pioneers managed to grow, pick, pack and ship their fruit without the technological means we have today. In doing various oral history interviews this year, that point was really brought home to me. One grower recalled how irrigating his family’s grove meant moving the actual water pipes manually from …
At the Citrus & Specialty Crop Expo, Jude Grosser and Fred Gmitter provided an update on the numerous scion selections produced at the Citrus Research and Education Center (CREC). Both are University of Florida Institute of Food and Agricultural Sciences plant breeders. Here are a few of the scion selections they highlighted in a presentation titled Working to Provide Sustainable …
University of Florida Institute of Food and Agricultural Sciences researcher Nian Wang reported in a July 20 webinar that HLB is a pathogen-triggered immune disease. After explaining the sequence in which the disease attacks trees, he suggested ways growers can use that knowledge to combat HLB. Wang is a microbiologist and cell scientist at the Citrus Research and Education Center. …
The conditions under which citrus fruit may be moved interstate from areas quarantined for sweet orange scab (SOS) when destined for processing or packing in a commercial citrus-producing state without a statewide SOS quarantine have been modified. The modification was made by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (USDA APHIS). In 2010, APHIS published Federal …
By Megan Dewdney Mid-summer to fall has become algal spot season in my office. The disease is re-emerging in Florida for unknown reasons. While much of the year algal spot is low key and hard to spot, between June and September it is very obvious. So, what is algal spot, should you be concerned, and what can you do about …
All indications are that the recent widespread use of individual protective covers (IPCs) on young citrus trees in Florida is beneficial, especially for excluding Asian citrus psyllids and the HLB they spread. If there is any downside, it may be that some other pests and diseases are more prevalent under IPCs. In a recent American Society for Horticultural Science webinar, …
By Megan Dewdney The 2021 foliar fungal season was an easier than average year. The La Niña weather pattern predicted last fall came to pass, and the spring was relatively dry from January to the end of May with some rain in February and April. While citrus trees in Florida were likely drought-stressed, the dry weather slowed the usual decomposition …
Highlands County Extension agent Lourdes Pérez Cordero recently offered scouting and management suggestions for citrus leafminers (CLM), Asian citrus psyllids (ACP) and rust mites. The suggestions were part of an article in the January issue of Citrus from the Ridge to the Valley, the Central Florida citrus Extension newsletter. CITRUS LEAFMINERS The emergence of spring and summer flush benefits CLM, …
By Lauren M. Diepenbrock Maintaining a productive citrus grove in Florida takes a lot of effort and innovation these days. So much so that growers’ needs can outpace the timeline of the researchers who support this industry. As such, growers often move forward with promising ideas or tools before researchers can provide useful recommendations toward successfully incorporating these tools. The …
By Brenda Eubanks Burnette Several years ago, I was at the 2017 Florida Ag Hall of Fame dinner for my friend, Bernie Lester, who was being inducted that year. He recounted such a wonderful story during his speech that I asked him to send it to me so I would have it for the Citrus Archives, and I’d like to …
By Evan G. Johnson It is time to start thinking about protecting the fall root flush that will start soon and continue through November/December. This is the largest root flush of the year that stores carbohydrate reserves for next spring. Coming out of the rainy season, phytophthora has had the chance to build up plenty of inoculum, especially in groves …
The Florida Citrus Commission (FCC) recently heard presentations about the history and current work of both the New Varieties Development and Management Corporation (NVDMC) and the Citrus Research and Development Foundation (CRDF). NVDMCRosa Walsh, Florida Department of Citrus (FDOC) director of scientific research, said from 2003 to 2005, the FCC discussed the need for a program that would develop, license …
Michael Woodley returned to his hometown of Frostproof, Florida, in 2011 at the request of his dying mother to take care of the land and keep it in the family. After a firefighting career of more than 30 years with the Florida Forest Service that took him all over the state, he is now growing lemons on 20 acres on …
By Megan Dewdney Greasy spot and melanose are two fungal diseases that have long needed the attention of Florida citrus growers. While they are more of a concern for fresh fruit growers, trees for processing can be damaged, too. In terms of management priorities, greasy spot is the greater concern since it reduces tree photosynthetic capacity and causes defoliation. Melanose …
By Lukasz Stelinski The citrus leafminer (CLM) remains a major pest of citrus throughout Florida. The adults are small, white/silver-colored moths about half the size of a typical mosquito (Figure 1). Adults are difficult to spot due to their small size and because they are active only in the evening (dusk) and early pre-dawn hours. CLM adults can be monitored …
A company that recently obtained a patent for a natural peptide solution to treat HLB has received Citrus Research and Development Foundation (CRDF) funding to see if the product has efficacy for other citrus diseases. CRDF will fund the company, Elemental Enzymes, for about $61,200, said CRDF Chief Operating Officer Rick Dantzler. Elemental Enzymes proposes to do research “to see …
University of Florida (UF) scientists achieved a major milestone in their quest to develop an HLB-resistant tree by sequencing the genome of a fruit plant that’s a close cousin to citrus trees. HLB is also known as greening disease. UF Institute of Food and Agricultural Sciences researchers sequenced the genome from trifoliate orange, in collaboration with scientists from the University …
