By Mongi Zekri For maximum efficiency of a grove, it is essential that every location is occupied by a tree and that every tree is healthy. Prompt replacement of dead and declining trees means higher average long-term returns from the grove. If the declining trees remain in the grove, they keep getting weaker and yield less fruit each year. Therefore, …
Citrus Sampling of Varieties Grown in Gainesville
Consumers have different tastebuds that make them prefer certain fruit more than others. What one may like, another may reject. This is especially true in the citrus industry where palate and consumer preference play a role in what varieties growers choose to produce. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) campus in Gainesville hosted a recent …
Studying Tree Damage From Hurricane Winds
In the latest All In For Citrus podcast, Christopher Vincent, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor of tree ecophysiology, discussed a project he is working on in the wake of this season’s hurricanes. He has been tasked to work with growers to survey damage after the storms, specifically how winds harmed groves. Hurricane Ian …
Updates for Citrus Nutrient Best Management Practices
By Kelly T. Morgan, Davie Kadyampakeni and Tripti Vashisth This article reviews current University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus fertilizer recommendations and provides updated information about recently approved recommendations for secondary macronutrients and micronutrients. Citrus growers have been very concerned about fertilizer applications and nutrient management since citrus greening (huanglongbing or HLB) was found in …
Unraveling the Relationship Between the HLB Bacterium and Trees
At the heart of the HLB threatening the Florida citrus industry is a complex exchange between the citrus tree and an insidious bacterium. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers continue to study the bacterium that causes HLB. They are learning more about how it works within the citrus tree in an effort to find viable …
Research to Help Organic Growers Fight HLB
A grant from the U.S. Department of Agriculture’s Organic Agriculture Research and Extension Initiative (OREI) is intended to advance research to help organic citrus producers fight HLB. The grant awards $2.03 million to a team of scientists from the University of Florida, Texas A&M University and The Organic Center. The Organic Center is a non-profit organization convening evidence-based science on the …
Flower Bud Advisories Have Begun
Regular flower bud advisories from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) were restarted Nov. 21 and will be provided every other week through early spring. Associate Professor Tripti Vashisth provides the advisories. The advisories provide critical information about the intensity and time of citrus blooms. Growers use this information to determine when to spray for …
Growers and Researcher Discuss Millennium Block Trials
Two citrus growers recently explained the benefits to be gained from research at the Indian River Research and Education Center’s (IRREC) Millennium Block in Fort Pierce, and a scientist discussed a grapefruit study there. The IRREC is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) facility. The 20-acre block was planted in 2019 to help growers find …
Flower Bud Advisories Promote Better Planning
By Tripti Vashisth In Florida, it is the time of year to start following citrus flower bud induction conditions for next year’s bloom. Citrus flower bud induction starts in the fall and usually is complete by early January. Low temperatures first stop growth and then promote induction of flower buds as more hours of low temperatures accumulate (below 68 degrees). …
All In For Citrus Podcast, November 2022
The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently received a large grant from the U.S. Department of Agriculture National Institute of Food and Agriculture (NIFA). Michael Rogers provides details of the $16.5 million grant during the November All In For Citrus podcast. Rogers is the director of the UF/IFAS Citrus Research and Education Center in Lake …
Citrus Breeder: Growers Need to Think More Out of the Box
If cold-hardy citrus growers diversified their crops and not put all of their eggs in the satsuma basket, it would provide them a better chance at long-term sustainability. It would allow producers an opportunity to combat the negative national stigma concerning citrus juices, says Jude Grosser, a professor of plant cell genetics at the University of Florida Institute of Food …
Managing Pest and Predatory Mites in CUPS
By Emilie Demard Mites are pests of economic importance in traditional groves and citrus under protective screen (CUPS). Results from a two-year survey in CUPS at the Indian River Research and Education Center (IRREC) in Fort Pierce, Florida, showed that the citrus rust mite and the citrus red mite populations can reach high levels resulting in leaf and fruit damage. …
Sneak Peek: December 2022 Citrus Industry
Need the latest nutrient recommendations for growing citrus in Florida? Find updates for nutrient best management practices in the December issue of Citrus Industry magazine. The article, by Kelly Morgan, Davie Kadyampakeni and Tripti Vashisth, details recently approved recommendations for secondary macronutrients and micronutrients. The new advice is based on University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) …
New Advancements in Herbicide Spraying
By Ramdas Kanissery, Yiannis Ampatzidis, Mahesh Bashyal and Shea Teems Weed control is vital for profitable citrus production since weeds compete for nutrients and water, can harbor diseases and pests, and get in the way of equipment and workers. Without proper management, weeds lead to reduced crop yield and economic losses. Chemical weed control using herbicides is the most common …
Peel Protection Key for Citrus Growers
Citrus growers producing for the fresh market should always ensure their fruit’s peel remains unblemished and without defect. This will protect the fruit against infection and consumers choosing not to purchase the fruit. Mark Ritenour, professor of postharvest technology at the University of Florida Institute of Food and Agricultural Sciences, spoke during the recent Cold-Hardy Citrus Field Day at the …
Display Day Draws Good Crowd
Fruit display days are an integral part of the citrus breeding process. The evaluations provided by participants give important feedback on the taste, appearance, texture and overall desirability of the fruit sampled whether it be for juice or the fresh market. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) hosted a display on Nov. 14 at the …
Pruning Recommendations and Benefits
By Mongi Zekri Pruning is an important grove practice that increases sunlight penetration within the tree canopy. Sunlight enhances flowering, fruit quality and color development. Sunlight also allows foliage to dry quickly after a rain shower, which reduces problems of fungal diseases. Pruning trees can improve fruit quality and increase fruit size. However, tree response to pruning depends on scion …
Gibberellic Acid May Help Citrus Trees After a Hurricane
In the latest episode of the All In For Citrus podcast, ways to mitigate damage from Hurricane Ian are discussed by researchers from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). While extensively damaged trees are likely lost, those that experienced less damage can be helped in the recovery process. Tripti Vashisth, UF/IFAS associate professor of horticultural …
Groundcovers Promote Water-Use Efficiency and Pest Management
By Sandra M. Guzmán, Larry Duncan, John Santiago and Lorenzo Rossi The implementation of pest management technologies might have an impact on other management areas in the grove. Landscape fabric groundcovers, for example, have been used for pest management in citrus production. Groundcovers also recently have been used to promote the homogeneous availability of water for uptake by roots, better …
Post-Hurricane Weed Management
By Ramdas Kanissery Hurricanes and the associated flooding will impact weed management in the affected season and the following years. Weeds should be effectively managed after these severe weather events as weeds may take advantage of the reduced competitiveness of recovering trees. INTENSIFY SCOUTINGA critical step in weed management after hurricanes is to scout groves and note the emergence of …