Adjuvants Did Not Improve Delivery of Foliar-Applied Oxytetracycline

Tacy CalliesCitrus Expo

In 2016, federal authorities began allowing Florida citrus growers to spray oxytetracycline solutions on their trees to combat citrus greening disease. Since then, researchers have been investigating oxytetracycline delivery methods. In a Citrus Expo presentation, Christopher Vincent, assistant professor of horticultural sciences at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, shared …

Harnessing the Power of Soil Microbes

Tacy CalliesSoil Improvement

Although often ignored due to their intangible nature, microorganisms play significant roles in agriculture. The natural microbial processes allow for long-lasting interactions between nutrients, plants and soils. Masanori Fujimoto, assistant professor at the University of Florida, is leading a research and education project titled “Harnessing Microbes for Sustainable Food Production.” The project is funded by the U.S. Department of Agriculture’s …

nematodes

Controls for Sting Nematodes

Ernie NeffPests

Larry Duncan provides updates on the damage done by sting nematodes and research into controlling them with nematicides and perennial peanut as a cover crop. Duncan is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) nematologist at the Citrus Research and Education Center. Sting nematodes have become a “real issue” for Florida growers in the past five …

hurricane

Bournique Reappointed to Water Board

Ernie NeffWater

Florida Gov. Ron DeSantis has reappointed Indian River Citrus League (IRCL) Executive Vice President Doug Bournique to a fourth, four-year term on the St. Johns River Water Management District (SJRWMD) Governing Board. Bournique was first appointed to the SJRWMD board in 2008 by then-Gov. Charlie Crist. He was re-appointed by Gov. Rick Scott. Throughout his service on the board, Bournique …

citrus

Get Florida Freeze Updates With Winter Weather Watch

Tacy CalliesTip of the Week, Weather

By Chris Oswalt There was a time back in 1962, on Dec. 12 and 13, when a devastating freeze in Florida decimated a significant portion of the state’s citrus industry. In Polk County, the freeze caused serious damage to 134,000 acres of citrus. In 1963, citrus growers were concerned about receiving timely weather information and frost warning bulletins. Back then, …

Controlling Psyllids: A Threshold Approach

Ernie NeffPsyllids

Citrus growers should consider controlling HLB-spreading Asian citrus psyllids (ACP) only when a prescribed ACP population, or threshold, is reached. Entomologist Lukasz Stelinski suggested this approach in a virtual Citrus Expo presentation. Stelinski is a University of Florida Institute of Food and Agricultural Sciences researcher at the Citrus Research and Education Center in Lake Alfred. A summary slide Stelinski showed …

Global Congress Aims to Increase Citrus Consumption

Tacy CalliesInternational

Citrus suppliers have a unique opportunity to build on the sales momentum generated by the coronavirus pandemic. They should develop joint strategies to increase global consumption based on established health claims, as the avocado sector has done to such powerful effect. That was the take-home message from the inaugural Global Citrus Congress Live on Nov. 5. The virtual event drew …

Genome Sequencing and Other UF Research

Ernie NeffAll In For Citrus Podcast

Michael Rogers discusses the importance of the recent sequencing of the trifoliate orange genome by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers and others. He also tells how growers can learn more about UF/IFAS research funded by the Florida Legislature. Rogers is director of the UF/IFAS Citrus Research and Education Center (CREC) in Lake Alfred and …

Sudden ACP Increase in California Worrisome

Len WilcoxCalifornia Corner, Psyllids

To the surprise and consternation of growers and officials, 74 Asian citrus psyllids (ACP) have been discovered in Kern County, California, since June. Local and state officials are concerned about the recent uptick in trappings and are working to find how extensively the infestation has spread. The trappings have been equally dispersed in residential and commercial citrus. Staff from the …

Survey on Water and Technology Use

Ernie NeffTechnology, Water

University of Florida (UF) researchers are conducting a survey to study smart agriculture technology acceptance and adoption behavior of Florida specialty crop growers, specifically growers of crops requiring regular irrigation. Adam Watson, an assistant professor in the Department of Agricultural and Biological Engineering, and doctoral candidate Raminder Kaur are requesting the information. The survey requests feedback on growers’ use of …

Citrus Nematode and Resistant Rootstocks

Tacy CalliesPests

University of Florida Institute of Food and Agricultural Sciences professor Larry Duncan discussed the citrus nematode (Tylenchulus semipenetrans) during a recent international webinar on plant parasitic nematodes hosted by ADAMA. T. semipenetrans has a worldwide geographical distribution, making it the most common plant parasitic nematode of citrus. According to Duncan, this pest is regulated by seasonal carbon flux in fibrous …

nutrition

CRDF Addresses Plant Improvement, Budget

Ernie NeffCRDF

Citrus Research and Development Foundation (CRDF) directors recently received an update on planned rootstock field trials and discussed the organization’s budget, CRDF Chief Operating Officer Rick Dantzler reported. ROOTSTOCK TRIALSThe new rootstock trials will be overseen by CRDF’s Select Committee on Plant Improvement, which met on Oct. 22 with citrus grower John Gose as chairman. Dantzler said the field trials …

Emerging Trunk Disorders

Tacy CalliesDiseases

By Evan Johnson and Megan Dewdney The last two years have seen increasing grower questions and reports of citrus trunk disorders in Florida. Sometimes these reports are associated with sudden tree collapse. In many cases, phytophthora foot rot is initially suspected. Typically, the symptoms don’t quite match those of foot rot, and phytophthora cannot be isolated from the lesion. If …

PIECES OF THE PAST: When Canned Grapefruit Came on the Scene

Tacy CalliesPieces of the Past

By Brenda Eubanks Burnette October has always signaled the first crop forecast, heralding the start of a new Florida citrus season. However, picking often begins in September for some eager to be the first out of the blocks. But, in the early days, with so much of the crop being sold fresh, it was imperative not to ruin the rest …

Citrus Advisory System Provides PFD Alerts

Ernie NeffDiseases

Beep. Beep. Beep. That’s the sound of an alert telling a citrus grower it’s time to spray fungicide to help prevent fruit from falling off the tree due to postbloom fruit drop (PFD). University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have developed a Citrus Advisory System (CAS) that sends web-based alerts to growers via mobile devices. …

herbicide efficiency

Herbicides: What to Mix and What Not to Mix

Tacy CalliesHerbicides, Tip of the Week

By Ramdas Kanissery Tank-mixing different herbicides with multiple selectivity and modes of action will broaden the range of weeds controlled in a single application. Although it is an effective and popular strategy, when components (herbicide products and spray additives) in the tank mixes are not compatible with each other, the resulting combination can produce unintended and unsuccessful results. THINK BEFORE …

Sneak Peek: November 2020 Citrus Industry

Tacy CalliesSneak Peek

As the new Florida citrus season starts, growers have many things on their minds: the low citrus forecast, the threat of potential freezes, and how best to protect both trees and employees. The November issue of Citrus Industry magazine aims to address these concerns. First up is a complete report on the U.S. Department of Agriculture’s initial crop forecast for …

UF/IFAS Gets $4.5M to Continue HLB Fight

Ernie NeffHLB Management

Three teams of scientists from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) recently received nearly $4.5 million in U.S. Department of Agriculture (USDA) funds to study new ways to manage HLB. The funding is part of the $45 million in grants the USDA National Institute of Food and Agriculture’s Emergency Citrus Disease Research and Extension Program …

bayer crdf

Bayer HLB Project Extended

Ernie NeffHLB Management

A large multi-year Bayer Crop Science project aimed at finding solutions for HLB will be extended by a grant from a branch of the U.S. Department of Agriculture (USDA). The two-year grant for just over $10 million came from USDA’s National Institute of Food and Agriculture (NIFA). The grant is to the Citrus Research and Development Foundation (CRDF) and its …

citrus

All In For Citrus Podcast, October 2020

Taylor HillmanAll In For Citrus Podcast, Sponsored Content

An exciting development with genome sequencing, timely research in the face of COVID-19 and an update on sting nematode research headline October’s All In For Citrus podcast. Citrus Research and Education Center Director Michael Rogers details the benefits of recent news about the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) mapping the trifoliate orange genome. He says …