Consistent irrigation is needed during the final few weeks of production for this year’s crop in the cold-hardy citrus region. That management tactic will help prevent fruit splitting, said Mary Sutton, University of Georgia (UGA) assistant professor and citrus Extension specialist. Sutton said she has seen fruit split in a couple of spots that was caused by extended dry, hot …
Update on Georgia Citrus Conditions
University of Georgia Assistant Professor and Citrus Extension Specialist Mary Sutton recently provided an update on Georgia citrus. Topics she addressed include fruit split, sunburn and upcoming fruit quality evaluations. FRUIT SPLIT Fruit split is still being seen “pretty regularly,” Sutton reported. She noted that this is normal in summer, especially when there are extreme fluctuations between dry and wet …
Cooler Weather Key to Cold-Hardy Citrus Quality
Cold-hardy citrus producers are yearning for some cooler weather. It would not only provide some relief from the warm temperatures being experienced across North Florida, South Georgia and South Alabama, cooler temperatures will aid in color development in this year’s fruit, among other benefits. Mary Sutton, University of Georgia (UGA) assistant professor and citrus Extension specialist, discussed the impact of …
Silicon and Salicylic Acid May Benefit W. Murcott
Preharvest silicon (Si) applications, when combined with postharvest salicyclid acid (SA), may increase W. Murcott mandarin fruit size, according to research from Ege University in Türkiye. The study, published in the Ege University Faculty of Agriculture Journal, examined whether the Si and SA applications could help maintain mandarin quality during extended cold storage. The authors are İzzet Atakan Erdallı, Fatih …
Managing Alternate Bearing With Fruit Thinning
Three University of Florida Institute of Food and Agricultural Sciences researchers recently authored an article explaining how to manage alternate bearing in citrus with fruit thinning. Alternate bearing is the tendency for trees to carry a heavy crop one year, followed by a season of very little fruit. The authors are Masood Jan and Muhammad Shahid with the North Florida …
Fruit Split Showing in Georgia; Color Break Likely Soon
Fruit split issues are starting to show up in some Georgia citrus groves, University of Georgia Assistant Professor and Citrus Extension Specialist Mary Sutton reported recently. She also noted that color break is likely to begin soon in Georgia citrus fruit. According to Sutton, fruit splits typically start at the stylar end (bottom end) of the fruit and spread vertically …
Florida Citrus: Less Acreage, More Production
Florida’s citrus acreage tumbled again in 2026, but the state’s citrus production increased in the 2025–26 season, according to two recent U.S. Department of Agriculture National Agricultural Statistics Service reports. LAND LOSS Results of the 2026 Commercial Citrus Inventory show total citrus acreage is 165,359 acres, down 21% from the 2025 annual survey. New plantings, at 5,200 acres, are down …
Brix Basics for Citrus Growers
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently published “Brix Basics: Where Plant Sugars Come From and Why They Matter.” Edwin Gutierrez Rodriguez, UF/IFAS citrus Extension agent for DeSoto, Hardee and Manatee counties, authored the article. Edited excerpts follow: Degrees Brix is the measurement of the total dissolved solids in a liquid, based on how much …
Canopy Management Critical for HLB-Affected Citrus
By Tripti Vashisth, Meryam Manzoor and Johann Hiller Fruit quality and yield remain major concerns for sweet orange growers in the HLB era. Both are closely linked to the tree’s ability to support developing fruit throughout the season. Leaves are the primary source of carbohydrates needed for fruit growth, retention and juice development. Canopy density and leaf area directly influence …
Understanding Crop Load and Alternate Bearing
By Fernando Alferez and Muhammad A. Shahid Citrus trees bloom profusely. It is estimated that a healthy adult tree can produce more than 200,000 flowers every year. This number is much higher than that of fruits the tree can maintain and develop. Normally only between 1% to 5% of flowers set fruit that develops, matures and can ultimately be harvested. …
A Familiar Format Returns to the Florida Citrus Production Guide
By Michael E. Rogers Florida citrus growers continue to adapt to new challenges, regulations and technologies while maintaining the resilience that has defined the industry for generations. Supporting that effort, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research and Extension programs remain focused on delivering practical, science-based solutions that help growers maintain productive and profitable operations. For …
Using Kaolin Clay to Protect Against Sunburn
By John M. Chater Kaolin clay is used as a crop protectant in many crops, including tree crops like citrus. This clay is often white to grayish white and is commonly used to reduce sunburn on fruit and young trees. Kaolin also has been demonstrated to reduce pest feeding and activity in some tree crops. The albedo from the clay …
The Future of Brazilian Orange Production
Fundecitrus Executive Director Juliano Ayres discussed the future of orange production in Brazil during the 75th-anniversary celebration of the German Fruit Juice Industry Association. The event was held in Bonn, Germany in late June. Ayres addressed the key factors expected to influence Brazilian citrus farming in the coming years, emphasizing orchard health, competitiveness, sustainability and the health benefits of orange …
Georgia Citrus Production Status and Fertilizer Trial
Mary Sutton, assistant professor and citrus Extension specialist at the University of Georgia, provided an update on the status of the state’s citrus crop and discussed a fertilizer trial her laboratory is conducting. FRUIT DROP AND FRUIT SIZE Sutton reported that June drop is wrapping up for much citrus. “We should see less fruit drop as we move into the …
Leaf Quantity Matters for Fruit Quality
By Tripti Vashisth, Taylor Livingston, Meryam Manzoor and Johann Hiller Citrus fruit quality and yield remain major concerns for sweet orange growers in the huanglongbing (HLB) era. These outcomes largely depend on the tree’s ability to support developing fruit throughout the growing season. Leaf area and canopy density are positively correlated with carbohydrate production and allocation to fruit, directly influencing …
Pressures Impacting the Brazilian Citrus Industry
Shifts in the international geopolitical landscape, rising logistics costs, sanitary barriers and currency fluctuations are directly impacting Brazil’s fruit industry, including citrus. The effects of these transformations were discussed during a recent edition of the Socioeconomics Debates series, hosted by Embrapa, under the theme, Brazil’s Fruit Industry: How Global Crises Impact What Reaches Your Table. Researchers, economists and production representatives …
June Drop Underway in Cold-Hardy Citrus Region
It may not be June, but growers in the cold-hardy citrus region are experiencing June drop, a natural thinning process in which trees lose a lot of their fruit. Growers should not be alarmed about excess pieces of fruit that may be on the ground, says Mary Sutton, University of Georgia (UGA) assistant professor and citrus Extension specialist. “We are …
Cold-Hardy Citrus Crop Looks ‘Loaded’ for Upcoming Season
While still early in the production season, growers in the cold-hardy citrus region are optimistic for a bumper crop this year. That optimism comes despite a mid-March freeze and prolonged drought that impacted all of the Southeast but was especially dire in South Georgia, North Florida and South Alabama. Lindy Savelle, executive director of the Georgia Citrus Association, discussed the …
Plant Defense To Increase Citrus Performance
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently issued an article, Science‑Based Plant Defense So Your Crops Perform Better. The authors are multi-county citrus Extension agent Edwin Gutierrez-Rodriguez and Jonael Bosques-Mendez, a county Extension director. Edited excerpts follow: ROOTS AND WATER Plant roots are strategic. They possess the structure and ability to alter their growth …
Remember To Remove Stakes After Tree Establishment
It’s a good practice to support young trees with stakes, but the stakes should be removed once the trees are established. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) multi-county citrus Extension agent Edwin A. Gutierrez-Rodriguez tells why in a slightly-edited article: It is commonly accepted that when establishing a new citrus grove or caring for young trees, …




















