By Ute Albrecht There have been numerous reports of malformed roots in field-grown citrus trees recently. The rootstock propagation method is often suspected as the culprit. Before drawing quick conclusions, it is important to recognize that there are many different factors that can influence the root structure of a citrus tree aside from the propagation method. These include the genetic …
HLB Cause and Control Explained
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. …
A Transformative Program
By J. Scott Angle Morgan McKenna always knew she’d return home some day. Three previous generations of McKennas hadn’t just made a living from citrus. They’d made a life of it. It’s a life she wanted, too. Morgan saw the family business as family first and business second. She was most interested in the emotional rewards of coming home to …
Tropicana to Cease Processing at Fort Pierce Plant
Tropicana Products Inc. advised the state of Florida in a July 15 letter that it will shut down its Fort Pierce processing plant on or about Sept. 13. The notification came in a letter from Tropicana human resources representative Jennifer Kane to the State Rapid Response Program. The program works to prevent or minimize the impacts of layoffs on workers, …
PIECES OF THE PAST: Above and Beyond
By Brenda Eubanks Burnette Lena Smithers Hughes was born on a farm near Elgin, Tennessee, and helped to raise her seven siblings after her mother died when she was 14. She started teaching school at age 17, while still a student at Tennessee Tech, and went on to earn her degree from the University of Tennessee. In 1931, she and …
Oriental Fruit Fly Quarantine in Los Angeles County
A portion of Los Angeles County has been placed under quarantine for the Oriental fruit fly following the detection of 14 flies in the North Hills area of the San Fernando Valley. The quarantine zone measures 89 square miles. It is bordered on the north by the Angeles National Forest, on the south by the Ventura Freeway, on the west …
California Growers Show Strong Support for Citrus Research Board
California citrus growers recently voted by a large margin to continue their support of the Citrus Research Board (CRB) in a state-mandated referendum. The recently concluded referendum, which must be held every five years, was conducted by the California Department of Food and Agriculture (CDFA). A majority of eligible citrus producers voted in the referendum. Their support was nearly unanimous …
All In For Citrus Podcast, July 2022
This month’s All In For Citrus podcast focuses on the upcoming Citrus & Specialty Crop Expo scheduled for Aug. 17–18 at the Lee Civic Center in North Fort Myers, Florida. Michael Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, said the university’s citrus research team worked hard to develop …
Managing Macronutrients and Micronutrients
By Davie Kadyampakeni Nutrients are needed for optimal citrus tree growth, fruit yields and juice quality. Any nutrient deficiencies could result in low yields and decreased revenue. Make sure citrus trees receive adequate macronutrients and micronutrients at all times. Macronutrients are those nutrients needed in large quantities to influence yield, growth and fruit quality. Macronutrients are further divided into two …
Progress in Developing Improved Citrus Rootstocks to Mitigate HLB
By Jude Grosser, Manjul Dutt and Fred Gmitter Exploiting citrus genetic diversity is the key to defeating HLB. Plant species have survived for millennia with evolving, hostile pathogens. This is possible through natural selection within genetically diverse populations. Tolerant or resistant individuals survive and intermate, get through the bottleneck, and the species evolves. Current citriculture is based on extremely limited …
FFAA Conference Takes Up Nutrient and Water-Quality Issues
Florida Fertilizer & Agrichemical Association members gathered in Palm Beach recently for the organization’s annual conference. The status of nutrient regulations and water-quality issues were at the top of the agenda for the group. Ernie Barnett, Florida Land Council president, addressed those issues during the conference. He has been involved with water issues in the state for more than 30 …
HLB-Tolerant Tree Program Progressing
The goal of an expedited tree propagation program is to have several million HLB-tolerant or HLB-resistant trees planted in the next several years. Greg Hodges, assistant director of the Florida Department of Agriculture’s Division of Plant Industry (DPI), said he believes that goal is attainable. Hodges and others presented the propagation plans to the Florida Citrus Commission (FCC) on July …
No Negative Cardiovascular Impacts for Children Drinking OJ
New research examining the cardiovascular health of young adults who consumed 100% orange juice (OJ) as children indicates no increased risk for high blood pressure or elevated blood lipid levels as a result. The research, published in the International Journal of Food Science and Nutrition, specifically looked at 100% OJ consumption during late childhood and early adolescence and its association …
Pay Attention to pH for Best Nutrient Uptake
There 17 essential elements that plants need to grow. Three of those elements come to plants via water and the atmosphere. The 14 other elements come from fertilizer applications. Almost all of those are dependent on soil pH to determine how well they are picked up by plants’ root systems. Getting the soil pH just right was discussed in the …
Seminar Schedule Announced for Citrus & Specialty Crop Expo
Growers and industry leaders should mark their calendars for this year’s Citrus & Specialty Crop Expo scheduled for Aug. 17–18 at the Lee Civic Center in North Fort Myers, Florida. Complimentary registration is available for all growers, packers, shippers, processors, association members and university researchers. Josh McGill, show director, discusses why industry members should attend this year’s event. “We’re really …
Final U.S. Citrus Forecast Has Several Changes
The final U.S. citrus forecast of the 2021–22 season, released July 12, projected production changes for crops in Florida, California, Texas and Arizona compared to the June forecast. FLORIDAFlorida’s all-orange forecast rose 1%, to 40.95 million boxes, due to a slight increase in non-Valencia orange production and a 1% increase in expected Valencia orange production. The Florida grapefruit production forecast …
Wildflowers May Benefit Citrus Groves
By Xavier Martini Planting wildflowers in and around fields is known to provide food resources and habitats for beneficial arthropods like pollinators and predators of pests. In two locations (Lake Alfred and Monticello), University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers tested whether planting native Florida wildflowers next to citrus grove windbreaks could improve natural pest control …
Evaluation of Citrus × Microcitrus Hybrid Scions
By Ute Albrecht, Anas Fadli and Chandrika Ramadugu Most commercially available citrus scion cultivars are highly attractive to the Asian citrus psyllid and susceptible to HLB. There are some citrus species, however, that are HLB tolerant or resistant. This may be because they are less attractive to the psyllids and/or because they restrict pathogen proliferation and therefore HLB disease development. …
Texas Mexfly Updates Issued
The U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) in late June announced updates regarding Mexican fruit fly (Mexfly) quarantines in Texas: On April 29, APHIS and the Texas Department of Agriculture (TDA) established a Mexfly quarantine in Lyford, Willacy County, Texas. APHIS and TDA established the Lyford quarantine following the confirmed detection of a mature …
Citrus Crop Looks ‘Very Promising’
The sweltering heat being felt across the Southeast has done little to dampen the optimism shared by one citrus grower who believes this year’s crop is “very promising.” Kim Jones, who owns a citrus packing facility in Monticello, Florida, and is part-owner of a similar facility in Tifton, Georgia, discusses the state of this year’s crop in North Florida and …





























