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By Ozgur Batuman and Megan Dewdney Citrus nurseries work very hard and put forth considerable effort to reduce pest and disease problems. However, there continues to be problems with certain diseases, because the nursery environment for growing citrus trees is ideal for many pests and diseases. Basic principles of good nursery sanitation practices together with screening and removing suspected or …
A new website with a wealth of information about citrus rootstocks is now available at https://citrusrootstocks.org/. Rootstock breeder Kim Bowman, with the U.S. Department of Agriculture (USDA) Agricultural Research Service in Fort Pierce, has posted results from 37 replicated multiyear rootstock field trials in Florida. The results can be easily accessed from the site by computer, tablet or smartphone. According …
The U.S. Department of Agriculture’s Economic Research Service (ERS) released a Fruit and Tree Nuts Outlook report on March 31. The report shows that the forecast for the U.S. citrus crop is down 4 percent from last season and how this is affecting imports, exports and pricing. LOWER PRODUCTIONU.S. all-orange production is expected to decrease by 1.6 percent, largely due …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Senior Vice President for Agriculture and Natural Resources Jack Payne is set to retire this summer. After a national search process, four finalists to fill his position were invited to the Gainesville campus and to the Citrus Research and Education Center in Lake Alfred to meet with faculty, staff, students …
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) wants growers to know its diagnostic labs are continuing to operate during the COVID-19 crisis. Plant and soil health are critical to agriculture, an industry designated as essential during the pandemic. Therefore plant, soil and water testing will continue to be available. The following UF/IFAS labs are receiving and …
By Ramdas Kanissery, Justin George and Lukasz Stelinski Weed management is a crucial component in Florida’s citrus production. Recent University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research shows that weed management may have additional pest management benefits for citrus growers. Maintaining a weed-free grove and perimeter areas may help improve management of the Asian citrus psyllid (ACP), …
By Brenda Eubanks Burnette 2020 is the 93rd anniversary of Flamingo Groves, the forerunner of Flamingo Gardens. The founders, Floyd L. and Jane Wray, moved to Florida in 1925 where he sold real estate. The following year, on Sept. 19, a devastating hurricane decimated the area and changed their lives. D.L. Gregory was staying with the Wrays during the hurricane …
By Davie Kadyampakeni, Arnold Schumann, Mongi Zekri and Chris Oswalt Irrigation management is important for achieving optimal citrus tree growth and promoting high water- and nutrient-use efficiencies in young trees. In the era of HLB, poor water-management practices, such as infrequent irrigation, lead to water stress in trees resulting in limited growth and impaired root development. On the other hand, …
As everyone strives to stay healthy amid the coronavirus crisis, the April issue of Citrus Industry magazine focuses on another kind of health — young tree health. In the first of four articles focused on practices for planting new trees, University of Florida (UF) researchers Ozgur Batuman and Megan Dewdney give growers advice on what to watch for when receiving …
By Rhuanito Soranz Ferrarezi, Dinesh Phuyal, Davie Kadyampakeni and Kelly Morgan The Indian River District is the world’s premier grapefruit production region due to a warm, ocean-facing humid climate and Flatwoods soils. The geographical location leads to the production of fruit with thin rinds and exceptional juice and color that has been a high-value export delicacy in Europe and Asia. …
By Clint Thompson Citrus was the focus of an annual meeting held in Quincy, Florida, on March 12. Growers from Florida and Georgia converged at the North Florida Research and Education Center to learn about various citrus management practices for the region. GROWER-GUIDED AGENDA Danielle Sprague, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Extension agent in Jefferson …
By Laura Waldo and Arnold Schumann It has been the accepted belief for many years that citrus varieties and rootstocks do not develop root hairs. However, research has shown that root hair growth can be stimulated when soil phosphorus (P) concentrations are extremely low. It is possible that in Florida, citrus roots could fail to produce root hairs due to …
By Tripti Vashisth Constant supply and soil application of macronutrients and micronutrients can improve the health and productivity of HLB-affected citrus. A 20 to 50 percent higher than University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recommended rate of micronutrients is beneficial for HLB-affected trees. However, the nutrition program should be customized for each grove, as no one …
By Clint Thompson Georgia grower Joe Franklin believes the citrus market will stay profitable despite industry leaders expecting the state’s citrus acreage to double by the end of this year. SALES OUTLETS“The school systems are a good outlet for us,” Franklin said. “I was in Atlanta (recently). I’ve never seen so many people in my life. It’s like that in …
By Megan M. Dewdney Algal spot has not been seen frequently for many years, but in the last few years I have been getting more questions about identification and management. The disease is caused by a green alga, Cephaleuros virescens. The alga is not considered a parasite, as it grows superficially, but it does cause damage to trees if left …
The March issue of Citrus Industry magazine focuses on fertilization and other production practices to keep citrus trees healthy. Tripti Vashisth’s article summarizes a three-year University of Florida (UF) study that looked at 10 different controlled-release fertilizer treatments in two different locations. The research results revealed that when it comes to citrus nutrition, one size does not fit all. Surprisingly, …
By Clint Thompson Last weekend’s freezing temperatures in parts of South Georgia had no effect on the state’s satsuma crop, according to Lindy Savelle, president of the Georgia Citrus Association. The bulk of Georgia’s citrus crop — 80 to 90 percent — is satsuma oranges, a cold-tolerant citrus that can withstand temperatures as low as 15 degrees Fahrenheit. Savelle said …
By Clint Thompson Citrus greening disease is not yet a problem in Georgia. Jonathan Oliver, University of Georgia (UGA) assistant professor and small fruits pathologist, wants to keep it that way. The disease that has impacted citrus production in Florida for more than a decade has only been observed in backyard plantings in Georgia. However, since the state is expected …
Recently, I came across an old letter A.F. Camp wrote to John T. Lesley in 1979. I thought it was so interesting that I shared it with the members of the Florida Citrus Hall of Fame Selection Committee. I wanted them to think about how hard things were “back in the day” in considering the contributions of some of the …
By Amit Levy, Ozgur Batuman, Peggy Sieburth and Lauren Diepenbrock Citrus leprosis is an exotic viral disease not currently present in Florida. This disease is of interest since it was reported in citrus in Florida and Brazil in the early 1900s, where it caused great crop and tree losses, but it was eliminated from Florida in the early 1960s. Currently, …
