By Muhammad A. Shahid and KeAndre Leaks Silicon (Si) is an emerging powerhouse in citrus production, offering wide-ranging benefits for plant health, fruit quality and stress resilience. While not traditionally considered essential, silicon was officially recognized as a “plant beneficial substance” in 2012 by the American Association of Plant Food Control Officials. Its inclusion as an approved input by the …
Citrus Nutrition Day Explores Benefits of Silicon
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) hosted its annual Citrus Nutrition Day in January at the Citrus Research and Education Center in Lake Alfred. The event was well attended and covered various fertilizer and nutrition topics. Muhammad Adnan Shahid, UF/IFAS assistant professor of horticulture, presented his ongoing research on the use of silicon as a …
Potassium and Silicon Improve Cold Hardiness
By Muhammad Shahid Winter freeze is the main threat to the emerging citrus industry in North Florida, South Georgia and Southeast Alabama. Growers use microsprinkler irrigation as a freeze-protection strategy to protect the graft union of young trees, but it is not very effective in protecting aboveground plant parts in established trees. PLANT PROTECTIONUse of stress-mitigating substances could be an …
Silicon Recommendations for Citrus
A University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher recently wrote an article about silicon that included recommendations for its use. The article by Muhmmad Shahid, assistant professor of horticulture, appeared in the UF/IFAS Cold Hardy Citrus Connection newsletter. Silicon’s benefits may include improved yield, a strengthened root system and tolerance to abiotic stress, including cold. Excerpts …
Silicon Could Benefit Florida Citrus
There has been much focus on the benefits of applications of plant growth regulators like gibberellic acid and 2,4-D, and more recently oxytetracycline hydrochloride to improve the health of citrus trees infected with HLB. Silicon also has been highlighted for its potential benefits to citrus. Mohammad Adnan Shahid, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor, …
Silicon Being Evaluated for North Florida Citrus
The element silicon, known to be beneficial to many plants, is being evaluated for advantageous effects on North Florida citrus and blackberries. Horticulturist Muhammad Shahid discussed the benefits of Earth’s second-most-abundant element (after oxygen) during a recent Cold-Tolerant Citrus Production Workshop in Perry, Florida. Shahid is a University of Florida Institute of Food and Agricultural Sciences assistant professor at the …
Zinc Increases Yield by Reducing Fruit Drop
Different formulations of zinc applied by foliar spray increase fruit yield by reducing fruit drop in Hamlin and Valencia oranges, according to horticulturist Fernando Alferez. In some cases, he said, potassium enhances the beneficial effects of zinc. Alferez is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor at the Southwest Florida Research and Education Center …
CITRUS NURSERY SOURCE: Georgia Citrus Association Annual Meeting Focused on HLB and More
By Peter Chaires The Georgia Citrus Association held its seventh annual meeting on Feb. 27 at the University of Georgia (UGA) campus in Tifton. As usual, the event was well organized and well attended. The agenda included topics such as: It was a value-packed day. HLB RECOMMENDATIONS Roger Smith of TreeSource Citrus Nursery in Woodlake, California, traveled quite a distance …
Sneak Peek: May 2023 Citrus Industry
Some growers are taking a closer look at citrus under protective screen (CUPS), while others have already adopted the production system. CUPS has been proven to protect trees from HLB and hurricane damage. The May issue of Citrus Industry magazine features grower brothers who are early adopters of CUPS. Jerry and Keith Mixon have 150 acres of CUPS production in …
Citrosuco Launches Natural Ingredients Unit
The Brazilian company Citrosuco recently announced the launch of Evera, a new business unit that will produce natural ingredients for different industries. The natural ingredients will come through reuse technology of orange waste, including husks, peels, leaves, flowers and seeds. Evera pointed out that Brazil produces approximately 13 million tons of oranges annually, equivalent to 320 million boxes, but only …
Heritage Practices for Today’s Challenges
By Brad Turner Cover cropping and composting in Florida citrus production are not new concepts. Our ancestors understood the basic principles and implemented these practices just a couple of generations ago. YESTERDAY AND TODAYAs a boy, I can remember an old citrus grower telling me how beggarweed and crotalaria, both native nitrogen-fixing legumes, growing wild in neighboring fields would be …
Increasing Pesticide Effectiveness With Adjuvants
By Ajia Paolillo Editor’s note: THIS ARTICLE IS NO LONGER AVAILABLE FOR CEU CREDIT. Pesticides are widely used in commercial agriculture to manage insects and other arthropods, diseases and weeds. Each application needs to be as effective as possible in managing the target pest. Many factors, such as environmental conditions, tank-mix incompatibility and solution pH, can cause a pesticide application …
Herbicide Adjuvants in Citrus Weed Control
By Ramdas Kanissery Adjuvants (derived from Latin, adiuvare: to aid or help) are materials added into an herbicide spray solution that improve handling, performance and crop safety. To be effective, an herbicide must overcome certain environmental and biological obstacles before entering and acting in the weeds. For example, environmental conditions like hot and dry weather will result in a thicker …
Innovation in Natural Insect Control for Citrus
By Chip Henry When I chose to produce citrus organically nearly five years ago, I accepted the responsibility of implementing a nature-based protocol of production for my grove. Subsequently, I searched for products that were available to address the aspects of nutrition, soil health, undesirable vegetation suppression and insect control. The process of “turning over every rock” was imperative, with …
Common Crop Chemical Leaves Bees Susceptible to Deadly Viruses
By Sara LaJeunesse, Penn State University A chemical that is thought to be safe and is, therefore, widely used on crops — such as almonds, wine grapes and tree fruits — to boost the performance of pesticides, makes honey bee larvae significantly more susceptible to a deadly virus, according to researchers at Penn State and the U.S. Department of Agriculture. …