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Below you'll see everything we could locate for your search of “IMG citrus”
Florida grapefruit trees have taken a much harder hit from HLB, also known as greening disease, in recent years than orange trees have. Grapefruit production has plummeted drastically, and growers are desperately seeking ways to keep trees alive and productive. The fruit’s troubles have hit especially hard in the Indian River area, known worldwide for its grapefruit. Indian River Citrus …
“Unfortunately, there is no silver bullet” for HLB, plant pathologist Ozgur Batuman told growers in Immokalee recently, adding that he doesn’t think there will be one. “The best option for such a complex and challenging disease is … integrated pest management (IPM). And our growers here in Florida are actually doing just that. Now they are paying attention to root …
Michael Rogers, director of the Citrus Research and Education Center, discusses HLB research and education programs being conducted by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). “The goal of our IFAS citrus program continues to be to provide growers with the most up-to-date information that they can use to help maintain or increase the production of …
Huanglongbing (HLB) may have been found in significantly more citrus trees in 2018, but improved sampling and monitoring offer a reason as to why HLB detections increased so dramatically. In 2018, the California Department of Food and Agriculture’s Citrus Pest and Disease Prevention Program (CPDPP) redoubled efforts to limit the spread of HLB and its vector, the Asian citrus psyllid …
“Postbloom fruit drop (PFD) season is coming upon us fairly quickly,” plant pathologist Megan Dewdney said in summarizing a presentation she made Jan. 16 in Immokalee, Florida. “Growers should be planning on keeping an eye on the rain forecast … how much bloom they are having now, how much bloom they’ll have in two (to) three weeks, and keeping an …
Many citrus growers think integrated pest management (IPM) is all about reducing pesticide use. Not so, University of Florida Institute of Food and Agricultural Sciences entomologist Lukasz Stelinski told growers recently. “IPM is a system to achieve sustainable agriculture, and it’s very much based in economics, where a damage threshold or economic injury level is identified,” Stelinski said. Once a …
New California Governor Gavin Newsom has reappointed Karen Ross, 67, of Sacramento, as secretary of the California Department of Food and Agriculture (CDFA). The state cabinet-level department was established in 1919 to promote and protect a safe, healthy food supply, local and global agricultural trade, and environmental stewardship. Ross successfully served as CDFA secretary under Governor Edmund G. Brown Jr. …
A shift toward reduced use of insecticides in Florida groves could lead to the emergence of pests that haven’t generally been a problem for years, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Lauren Diepenbrock said. Pests that could return or emerge in the face of reduced insecticide use include scales, mealybugs, false spider mites and fruit …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Lukasz Stelinski suggested ways growers can cut psyllid control costs. He summarized key points he made in a talk at a Jan. 8 Citrus Insect Management Workshop at the Citrus Research and Education Center in Lake Alfred. Stelinski credited the late UF/IFAS entomologist Phil Stansly for determining that psyllid …
Nutrient deficiencies are common in HLB-affected trees, which make up the vast majority of Florida citrus trees. At a recent Citrus Nutrition Day in Bartow, University of Florida Institute of Food and Agricultural Sciences researcher Arnold Schumann discussed ways to identify and avoid nutrient deficiencies. A common identification method for nutrient deficiencies is direct observation, “walking through your grove, …
When the next frost threatens Florida’s crops, growers will do their best to make sure your favorite foods are protected from the potentially crippling chill, say University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) experts. For example, citrus growers use wind machines and microsprinklers to ensure freezing temperatures don’t ruin the fruit, said Chris Oswalt, a multi-county citrus …
By Jawwad Qureshi, Lukasz Stelinski and Fernando Alferez Management of huanglongbing (HLB) has focused on reducing the vector Asian citrus psyllid (ACP) and improving tree health, thus requiring a multi-pronged approach. Several elements of an HLB management system are either available or under current investigation. Maintenance of clean nursery stock, vector management and tree nutrition are widely implemented, while incorporation …
Growers with trees affected by HLB should try to maintain soil pH in the 6 to 6.5 range, Kelly Morgan told numerous growers attending a recent Citrus Nutrition Day event. Morgan is director of the University of Florida Institute of Food and Agricultural Sciences’ (UF/IFAS) Southwest Florida Research and Education Center. Morgan explained that soil pH affects trees’ ability to …
Jim Dilley of Dilley Citrus Nursery in Punta Gorda was intrigued by some new varieties he sampled at the Citrus Research and Education Center in Lake Alfred recently. Dilley singled out “several of the tangerines: 1818, 1819” as being of interest to him. “They were easy peel. It was apparent that one of them was probably a little earlier than …
By Megan Dewdney, Evan Johnson, Naweena Thapa and Michelle Danyluk In 2015, we started a large-scale project to determine if thermotherapy would be an effective huanglongbing (HLB) treatment for field trees. Some of the objectives were to determine effective temperature-time combinations for thermotherapy, which season gave optimal results for thermotherapy, and the effect on yield in subsequent years. TRIAL DETAILSComprehensive …
Daily irrigation is important in managing HLB-affected trees, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) soil scientist told a Citrus Nutrition Day crowd in Bartow on Dec. 11. The researcher, Davie Kadyampakeni, said daily irrigation reduces tree water stress and improves tree water use. According to Kadyampakeni, keeping water in the top 12 inches of soil …
Grower and gift fruit shipper Pete Spyke was among more than 100 people who sampled approximately 50 new University of Florida varieties at the Citrus Research and Education Center on Dec. 4. “There’s some good-tasting, easy-peel, seedless (mandarin) varieties that I think will be working their way through the gauntlet,” said Spyke. He added that several will probably be released …
An agricultural engineer whose current research projects include the simulation of agricultural management impacts on water quantity and quality in the upper Floridan aquifer has joined the University of Florida’s Indian River Research and Education Center (IRREC). Sandra Guzmán will lead the center’s irrigation and hydrology program. Guzmán started her position as an assistant professor of agricultural and biological engineering …
At a recent field day for citrus under protective screen (CUPS) in Polk County, researcher Arnold Schumann discussed varieties that appear to work well in the system. Schumann is with the University of Florida Institute of Food and Agricultural Sciences Citrus Research and Education Center. The primary purpose of growing citrus under protective screen is to keep out the Asian …
Citrus growers can learn more about managing Asian citrus psyllids and other pests in a workshop Jan. 8 at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC). The psyllid can transmit the bacteria associated with greening disease to citrus trees and has already caused severe damage to Florida’s multi-billion-dollar-a-year citrus industry. …
