By Brett Bultemeier and Lauren Diepenbrock The status and availability of chlorpyrifos has had numerous, and at times, confusing changes due to new rules, court rulings and Environmental Protection Agency (EPA) decisions. The point of this article is to clearly define if chlorpyrifos can be used and until what date. As always, changes are possible in the future and users …
Ag Policy Leaders to Headline Citrus & Specialty Crop Expo
The Citrus & Specialty Crop Expo is scheduled for Aug. 21–22 at the Florida State Fairgrounds in Tampa. This year’s event will be the second at the fairgrounds — a venue which was well received by attendees of last year’s Expo. The event features an expansive trade show providing growers with an opportunity to learn about the products and services …
Colorado State University Increases Hurricane Forecast
Hurricane forecasters at Colorado State University (CSU) issued an update on July 9 for the 2024 Atlantic hurricane season. Information obtained through early July indicates that this season will have hurricane activity well above the 1991–2020 average. CSU’s July forecast is higher in all categories compared to its June 11 forecast. A summary of the July forecast is as follows: …
Final U.S. Citrus Forecast for 2023–24
The U.S. Department of Agriculture National Agricultural Statistics Service (USDA NASS) issued its final citrus forecast for the 2023–24 season on July 10. FLORIDA The Florida all-orange forecast rose 1% from the June forecast to 17.96 million boxes. That exceeds 2022–23 production of 15.82 million boxes but is far below 2021–22 production of 41.2 million boxes. Non-Valencia orange production is …
ReMedium TI Receives Exemption From Two-Year Restriction on Applications
ReMedium TI® has received a special local need label from the Florida Department of Agriculture and Consumers Services (FDACS). The label will remove the requirement that applications to treat citrus greening (HLB) cannot be made beyond two years in a row. For Florida citrus growers, this means those who have applied ReMedium TI® over the past two seasons now will …
International HLB Conference Focused on Grower Solutions
This spring, the seventh International Research Conference on Huanglongbing (IRCHLB) was held in Riverside, California. The inaugural event was held in 2008 and funded by a grant from the U.S. Department of Agriculture (USDA) National Institute of Food and Agriculture. USDA researcher Tim Gottwald and University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor Jim Graham founded the …
CRAFT Foundation Has New Leader
Steven Hall on July 8 succeeded Tamara Wood as executive director/program manager of the Citrus Research and Field Trial (CRAFT) Foundation. Wood will return to her former full-time employer Florida Citrus Mutual after a short period helping with the transition to Hall. Hall most recently served as assistant deputy commissioner of the Florida Department of Agriculture and Consumer Services (FDACS), …
Reduce Fruit Drop From Phytophthora-Induced Brown Rot
By Chris Oswalt During this time of the year, Florida growers should be aware of the potential for the development of citrus brown rot disease. It can infect fruit at color break. If severe, the disease can cause a significant amount of infected fruit to drop. For this reason, groves with a history of brown rot in areas that recently …
Study Looks at Interaction Between OTC and Soil Microbiome
A wealth of observations are being recorded by growers and scientists on the effects of trunk injection of oxytetracycline (OTC). Visually, trees have responded with better canopies. Hopefully, higher yields and quality will continue to follow the applications. But what about below ground? There have been recorded improvements in citrus root mass in treated trees. Sarah Strauss, associate professor of …
Heat-Related Illness Toolkit Available
The Southeastern Coastal Center for Agricultural Health and Safety (SCCAHS) and the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) have created an online toolkit to help protect agricultural workers from the summer heat. Last year’s sweltering summer temperatures convinced SCCAHS leadership that additional promotion about heat-related illness education could save lives. Even before the summer ended, the …
How Does OTC Impact the Soil Microbiome?
Sarah Strauss, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) soil microbiologist, joined the June All In For Citrus podcast episode to discuss her research on the interaction of oxytetracycline (OTC) currently being injected into citrus trees and the soil microbiome. She noted that OTC does change the soil microbial community. The good news is that the changes …
ACP Management in High-Density Plantings
By Jawwad Qureshi The Asian citrus psyllid (ACP, Figure 1) is the vector of huanglongbing (HLB) disease associated with the phloem-limited bacterium Candidatus Liberibacter asiaticus. Infected trees start to decline and produce poor-quality fruit, which drops prematurely. Consequently, citrus production has decreased dramatically since the advent of HLB in Florida in 2005. There is no cure for the disease yet. …
Seeking a Partner for OTC
Few would dispute that the approval of oxytetracycline (OTC) for use as a trunk-injection therapy to treat HLB is one of the biggest breakthroughs in the nearly two decades of fighting the disease. Most Florida citrus growers believe the therapy has been a net positive and they are committed to continuing the treatment. However, there’s a stipulation in the labels …
Millennium Block Research Shows Promising Results
A recent update of Millennium Block research at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center in Fort Pierce indicates the 5,500 trees in the project are yielding promising results. The four trials within the Millennium Block aim to unlock the genetic potential of new scion and rootstock hybrids never tested …
Grove Conservation Easement Expands Panther Habitat
The U.S. Department of Agriculture Natural Resources Conservation Service (USDA NRCS) and The Nature Conservancy (TNC) in Florida have purchased a conservation easement at G Road Grove, a citrus grove and tree nursery in Florida panther habitat. G Road Grove expands the protected area within the Florida Panther Dispersal Zone, a 30,000-acre corridor in Hendry and Glades counties. The …
Teenager Awarded for Investigation of Alternative Trunk-Injection Treatment
Tanishka Balaji Aglave of Valrico, Florida, received the $10,000 H. Robert Horvitz Prize for Fundamental Research for her investigation into a natural alternative treatment against citrus greening disease (known as huanglongbing, or HLB). Aglave, a 15-year-old who attends Strawberry Crest High School and grew up on a citrus farm, injected the trunks of infected citrus trees with an extract from …
Lawsuit Challenges Farmworker Protection Rule
A coalition of states, including Florida and Georgia, recently joined a lawsuit filed by the Southeastern Legal Foundation (SLF) challenging the U.S. Department of Labor (DOL) Farmworker Protection Rule. DOL announced the final rule in late April, saying it would strengthen protections for farmworkers in the H-2A program. The Farmworker Protection Rule will become effective June 28, 2024. SLF is …
Sneak Peek: July 2024 Citrus Industry
The conversation in Florida citrus continues to center around trunk injection of oxytetracycline (OTC). The July issue of Citrus Industry magazine presents the latest information on the OTC topic. OTC product labels require a one-year pause in application after two years of use. This requirement was put in place to prevent pathogen resistance to the product. Florida growers who have …
Survivor Grapefruit Cultivars Set for HLB Trials
The U.S. Department of Agriculture Agricultural Research Service (USDA-ARS) citrus scion breeding program recently rediscovered several noteworthy grapefruit cultivars at the A.H. Whitmore Foundation Farm in Groveland, Florida. Among these are the Florida Red, Red Blush and Henderson varieties. These cultivars were originally selected as long shots from the Whitmore Foundation Farm and were planted in 1986. They have survived …
Alico Announces New Contract With Tropicana
Alico, Inc. announced that it entered into a new three-year agreement with its largest customer, Tropicana Brands Group (Tropicana), to supply citrus fruit. The agreement is effective June 5, 2024, through July 31, 2027. This supply agreement succeeds existing agreements that are set to expire at the end of July 2024. This agreement effectively sells the citrus fruit grown on …





























