Reduce HLB Pressure and Enhance Growth With Kaolin

Josh McGillHLB Management, Tip of the Week

By Christopher Vincent Kaolin particle film is a non-toxic tool to reduce psyllids and increase tree growth. Particle films are nothing more than a suspension of solid particles that make a “film” on the leaves after they dry. They work mostly by reflecting light. Kaolin is the most common type of particle film because the clay is mined directly and …

citrus

All In For Citrus Podcast, June 2022

Josh McGillAll In For Citrus Podcast

In the June episode of the All In For Citrus podcast, Michael Rogers, director of the Citrus Research and Education Center (CREC), speaks live and on-the-scene during the Florida Citrus Industry Annual Conference in Bonita Springs. He said the great turnout for the event, hosted by Florida Citrus Mutual, is indicative of the fighting spirit of the state’s citrus growers. …

Sneak Peek: July 2022 Citrus Industry

Josh McGillRootstocks, Sneak Peek, Varieties

HLB continued to contribute to reduced production and lower quality fruit for Florida growers this season. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers are working to help alleviate these problems by delivering improved rootstocks and varieties. The July issue of Citrus Industry magazine includes an in-depth look at this work. Read “Juice for Florida’s future” to …

Selecting the Right Leaves for Sampling

Josh McGillNutrition, Tip of the Week

By Jamie D. Burrow and Tripti Vashisth With the increased cost and limited availability of fertilizer, purchasing decisions are more important now than ever. Collecting the right leaves for sampling is the first step to making fertilizer decisions. Leaf samples should consist of 100 leaves that are 4- to 6-month-old spring flush leaves taken from nonfruiting branches. WHY LEAVES FROM …

Experimenting With Cover Crops: Results From Three Years of Trials

Josh McGillCover Crops, Research, weeds

By Sarah Strauss, Antonio Castellano-Hinojosa, Davie Kadyampakeni, Ramdas Kanissery and Tara Wade Cover crops, which are planted specifically for soil enhancement and not for sale or harvest, can improve soil conditions and production for a variety of crops. However, there have not been many studies documenting changes to soil conditions and production when using cover crops in citrus. The University …

Citrus Industry Priorities Highlighted at GCGA Annual Meeting

Josh McGillEvents, Legislative

Citrus industry growers and allied members of the Gulf Citrus Growers Association (GCGA) gathered in Fort Myers last week for the association’s annual meeting. Matt Joyner, executive vice president/CEO of Florida Citrus Mutual, recapped Florida’s 2022 legislative session and touched on some other priorities during his address to the group. Joyner said the legislative session was a strong one for …

Nutrient Application Rates Bill Signed Into Law

Josh McGillLegislative, Nutrition

Florida Citrus Mutual Executive Vice President/CEO Mathew Joyner announced that Gov. Ron DeSantis signed SB 1000, the Nutrient Application Rates bill. Joyner called SB 1000 “a critical piece of legislation.” See the full text of the new law here. The law takes effect July 1. “Sponsored by Senator Ben Albritton and Representative Lawrence McClure, the bill had previously passed both …

Does Compost Improve Young Tree Growth?

Josh McGillResearch, Root health, Soil Improvement

By Ute Albrecht, Gabriel Pugina, Antonio Castellano-Hinojosa and Sarah Strauss Root health is important for tree growth and directly affects a tree’s ability to cope with adverse biotic and abiotic stresses. Most citrus production in Florida occurs on natural infertile sands with very little organic matter and a low cation exchange capacity (CEC), resulting in minimal amounts of soluble nutrients …

Tips to Keep Citrus Fruit on Trees

Josh McGillAll In For Citrus Podcast, Fruit Drop

By Frank Giles During the May All In For Citrus podcast, Michael Rogers, director of the Citrus Research and Education Center, discussed research on how applications of gibberellic acid (GA) can improve tree health and reduce fruit drop. The research is being conducted by Tripti Vashisth, an associate professor of horticultural sciences with the University of Florida Institute of Food …

Changes in Pesticide Residue Tolerances on Citrus Destined for Korea

Josh McGillExport, Pesticides, Tip of the Week

By Mark A. Ritenour The U.S. and other countries set maximum residue limits (MRLs) on fresh produce for various chemicals, including pesticides that might be used preharvest or postharvest. These materials must be labeled for use on the crop of interest and used only according to label instructions. While it is unlikely for U.S. MRLs to be exceeded when label …

An Update on Oak Mulch to Increase Soil Health

Josh McGillResearch, Soil Improvement

By Lukas M. Hallman, John M. Santiago and Lorenzo Rossi At first glance, one may not see how oak trees relate to citrus production. But in the early 2010s, growers and scientists reported seeing little to no HLB symptoms on citrus growing underneath the dripline of oak trees compared to citrus trees nearby but not directly under oak trees. These …

Impact of Herbicides on Fruit Drop

Josh McGillAll In For Citrus Podcast, Fruit Drop, Herbicides

Growers know the negative impacts of any kind stress on trees infected by HLB. That raised a question: Can injury from herbicides make fruit drop worse? Ramdas Kanissery, an assistant professor of weed science with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), conducted a research project to help answer that question. Kanissery discusses the research in …

Are Finger Limes the ‘Next Big Thing?’

Josh McGillLimes, Marketing

Will Florida finger limes be the “next big thing,” or will they show mediocre or poor performance in the commercial market? That’s a question two University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers hope to answer. Trent Blare and Fredy Ballen, both with the Tropical Research and Education Center in Homestead, discussed their work in a virtual …

Finger Limes Introduced for Florida

Josh McGillLimes, Varieties

Two recently released University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) varieties of finger limes were introduced at a virtual Finger Lime Symposium held in March. Manjul Dutt of the UF/IFAS Citrus Research and Education Center hosted the symposium; he also introduced the new varieties. Lourdes Pérez Cordero, UF/IFAS Extension agent in Highlands County, reported on the new …

Lebbeck Mealybug on the Move in Florida Groves

Josh McGillAll In For Citrus Podcast, Pests

In the May episode of the All In For Citrus podcast, Lauren Diepenbrock, an entomologist with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), discusses her research on the lebbeck mealybug. The pest was first identified in Florida in the Boynton Beach area in 2009 in a natural habit. “It was not until 2019 that we found …

New SWFREC Director Named

Josh McGillEducation, Industry News Release, Research

Michael Burton has been named the next director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Southwest Florida Research and Education Center (SWFREC). He’s scheduled to start at the Immokalee facility on July 1. Burton recently served for 17 months as proxy for the dean of Missouri State University’s William H. Darr College of Agriculture. He …

Sneak Peek: June 2022 Citrus Industry

Josh McGillNutrition, Sneak Peek, soil

In the quest to keep HLB-infected citrus trees productive, many growers are turning to techniques to improve soil health. That’s the focus of the June issue of Citrus Industry magazine. The hope is that better soil health will lead to better tree health. Methods under study include compost, cover crops and oak mulch. Citrus grower and consultant Brad Turner makes …

citrus

All In For Citrus Podcast, May 2022

Josh McGillAll In For Citrus Podcast, Fruit Drop, Research

Fruit drop continues to plague Florida citrus groves. Growers and researchers are seeking ways to mitigate the problem. This was the topic of a number of presentations during the Florida Citrus Growers’ Institute held in Avon Park in April. Michael Rogers, director of the Citrus Research and Education Center in Lake Alfred, discusses those presentations during the May All In …

Update on CRDF Research Projects

Josh McGillCRDF, Research

The Citrus Research and Development Foundation (CRDF) Research Management Committee and board of directors recently approved projects for funding. The first CRDF research project has approval for funding of a final year of research by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) to study the lebbeck mealybug and its management. “The Research Management Committee debated this …

High Summer Temperatures Take a Toll on Trees

Josh McGillResearch, Weather

By Anirban Guha and Christopher Vincent A quick body temperature test is common these days before entering many workplaces, hospitals and clinics due to the ongoing COVID-19 pandemic. The purpose is to screen people for fevers, usually with a non-contact infrared thermometer. Measurement of plant body temperatures also has become common for many field crops, not to screen for infectious …