Fertilization frequency, micronutrient management and rootstocks can all impact the yield of HLB-affected sweet oranges, Tripti Vashisth recently told a Citrus Nutrition Day audience in Lake Alfred, Florida. The educational event was held at the Citrus Research and Education Center, where Vashisth is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) horticulturist. FERTILIZATION FREQUENCYHLB-affected trees should be …
Manage Psyllids at Reduced Cost
At the 2021 Citrus Expo, entomologist Lukasz Stelinski suggested ways growers can manage HLB-spreading Asian citrus psyllids (ACP) while reducing costs. Some of the University of Florida Institute of Food and Agricultural Sciences entomologist’s key points follow: Psyllid density is related to tree stress; more psyllids lead to higher damage, compromising tree health and yield. Spray for adults at bud …
Mexico OJ Exports Increasing
Mexico is the second leading exporter of orange juice (OJ), following only Brazil, Florida Department of Citrus (FDOC) economist Marisa Zansler reported recently. She said Mexico’s OJ exports increased incrementally in recent seasons in response to the decline in world OJ supplies. Excerpts from Zansler’s FDOC document, Florida Citrus Outlook 2021-22 Season, follow. Although a net exporter of orange juice, …
Heavy Fruit Loads in Rootstock Trials
Heavy fruit loads have created a problem for Owari satsuma rootstock trials in Valdosta, University of Georgia Extension agent and Lowndes County Extension Coordinator Jake Price reported recently. “It has been a struggle the last month or so to keep fruit off the ground because of the heavy fruit load,” says Price. “Fruit touching the ground will rot and fall …
Be Prepared for Winter Weather
By Chris Oswalt The weather folks are predicting weak to moderate La Niña conditions this winter. Typically, having either the La Niña or El Niño conditions during the winter in Florida is a good thing. There is a historically lower probability of having severe freezing temperatures during either of these El Niño-Southern Oscillation (ENSO) conditions in Florida. What this means …
Cutrales to Face Trial Over OJ Cartel
Law firm PGMBM reported it has secured a London High Court judgment that will result in a Brazilian orange juice (OJ) magnate facing trial over his participation in an illegal cartel. José Luis Cutrale and his son, José Luis Cutrale Jr., reportedly were part of an operation that substantially impacted the global market for the sale of OJ. Brazilian orange …
A Bright Spot on a Rainy Day
The ongoing pandemic and a dreary day of relentless rain did not stop the Florida citrus industry from gathering to celebrate four of its most outstanding members. On Nov. 5, approximately 350 people convened at Florida Southern College in Lakeland to honor the 2021 members of the Florida Citrus Hall of Fame. This year, the event was also live-streamed for …
Workshop Provides Black Spot Advice
Information to help growers find and control citrus black spot (CBS), as well as CBS regulatory procedures, were provided in an Oct. 26 training workshop in Arcadia. The workshop was hosted by multi-county citrus Extension agent Ajia Paolillo. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) plant pathologist Megan Dewdney discussed the pest’s lifecycle, potential spread due to …
Research on Rootstocks: More Than HLB
Plant breeders Fred Gmitter and Jude Grosser report on their efforts to develop rootstocks that perform well in Florida from several perspectives. In addition to seeking tolerance to HLB, they are working on rootstocks that might control tree size, deal with other diseases and pests and perform in a range of soils. Gmitter and Grosser are University of Florida Institute …
Top Grower Concerns: Input Costs and Availability
Trade and labor used to top the concern list for Florida’s specialty crop growers. Not anymore. The biggest concerns now are input prices and availability, says Mike Joyner, Florida Fruit and Vegetable Association (FFVA) president. Joyner reports that in talking to growers in the field, he has heard of fertilizer costs doubling – if growers can even get it. “The …
Rootstocks US-812, US-942 Hold Promise
The rootstocks US-812 and US-942 seemed to offer promise in early economic performance evaluations that economist Ariel Singerman discussed at the 2021 Citrus Expo. Singerman is a University of Florida Institute of Food and Agricultural Sciences Extension economist at the Citrus Research and Education Center in Lake Alfred. Singerman analyzed yield and economic performance of rootstocks in commercial settings during …
Oak Leaf Extract Tested as HLB Tool
In the search for solutions to HLB, a formulation based on oak leaf extract has been developed by citrus growers Travis Murphy and Tom Thayer, the Indian River Citrus League’s October River Ramblings newsletter reported. The formulation was developed following the growers’ observations that citrus trees under oak trees were free of HLB compared to nearby field trees that had …
CRDF Approves Five Projects
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. …
U.S. Lemons: Lower Production, Higher Prices
U.S. growers produced 884,000 tons of lemons in 2020-21, the smallest lemon crop since 2016-17, according to the U.S. Department of Agriculture’s Economic Research Service. Eighty percent of these lemons (710,000 tons) went to the fresh market, a 6% decrease in quantity from 2019-20. Although most U.S. lemons are grown in California, Arizona growers typically supply about 5% of the …
Orange Establishment and Production Costs
The costs of establishing and producing oranges in the San Joaquin Valley and the potential returns are the subjects of a new study by University of California (UC) specialists. Conducted by UC Agriculture and Natural Resources, UC Cooperative Extension and the UC Davis Department of Agricultural and Resource Economics, the study includes information on the production of navel oranges using …
Open Conversation, Hands-On Exhibits and Field Tours
Citrus Research and Education Center (CREC) Director Michael Rogers previews the Nov. 16 Open House/Field Day at the CREC in Lake Alfred. The CREC is part of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). The program will begin at 9 a.m. “It starts off with a panel discussion, talking about strategies to improve overall health of …
Fertilization Methods: Pros and Cons
Brandon White with the University of Florida Institute of Food and Agricultural Sciences discussed the pros and cons of several types and methods of citrus fertilization at Citrus Nutrition Day on Oct. 26. The event was held at the Citrus Research and Education Center in Lake Alfred, Florida. White recently became the new commercial fruit crop agent for Florida’s Lake …
Update on OJ Marketing Efforts
“From research to sales, there’s momentum and a feeling of energy in the air,” Florida Citrus Commission Chairman Steve Johnson wrote in a recent email to members of the Florida citrus industry. His update focused on Florida Department of Citrus (FDOC) orange juice (OJ) marketing efforts. The Florida Citrus Commission is the governing board of the Florida Department of Citrus. …
PIECES OF THE PAST: Michael Leaves His Mark
By Brenda Eubanks Burnette In 1917, A.B. Michael consolidated his citrus groves in Wabasso, Florida, with the Deerfield Groves Company of Cocoa, becoming vice president and general manager. This eventually led to his involvement in the American Fruit Growers, Inc., becoming one of the original stockholders and directors, and handling all Florida operations. Noted for his commitment to quality, he …





























