Millennium Block

Citrus Growers Invited to Visit Variety Trial

Josh McGillEvents, Rootstocks, Varieties

The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC) will host a Millennium Block Variety Trial Field Day on Oct. 19. The event will be held from 9 a.m. to noon. The Millennium Block is at 7850 Pruitt Research Road in Fort Pierce. Registration can be completed online here or by …

Florida Citrus Value Drops Steeply

Josh McGillFlorida, Production

The $438 million preliminary on-tree value of the 2021–2022 Florida citrus crop is 29% less than the $613 million revised value for 2020–2021, according to a federal Citrus Summary. The summary reported production, price and value of the 2021–2022 crop. It was released Sept. 7 by the U.S. Department of Agriculture’s National Agricultural Statistics Service. PRODUCTION PLUMMETS Florida’s all citrus …

California’s Total Reported Citrus Acreage Slightly Up

Josh McGillAcreage, California Corner

California citrus acreage (bearing and nonbearing) planted in grapefruit, lemons, limes, mandarins and pummelos increased in 2022 when compared to 2020. However, the state’s orange acreage declined. That information was in the 2022 California Citrus Acreage Report by the California Department of Food and Agriculture in cooperation with the U.S. Department of Agriculture’s National Agricultural Statistics Service (NASS). Although orange …

Florida Citrus Acreage Takes a Hit

Josh McGillAcreage, Florida

Total citrus acreage in Florida dropped 8% in the past year, to 375,302 acres, according to the Commercial Citrus Inventory Preliminary Report. The report was released Sept. 7 by the U.S. Department of Agriculture’s National Agricultural Statistics Service. The net loss of 32,046 acres is 19,942 acres more than was lost the previous season. New plantings, at 7,980 acres, are …

Keller Is New Leader for Florida Citrus Association

Josh McGillCitrus, Florida

Emma Keller became executive director of the Peace River Valley Citrus Growers Association (PRVCGA) Aug. 8. Keller, who is finishing her senior year at Warner University, succeeds Kait Shaw. She is working on a degree in agricultural science with a minor in communications. Keller was born in Charlotte County, Florida. “I grew up on an orange grove in Punta Gorda,” …

Optimizing Gibberellic Acid Applications in Florida Citrus

Josh McGillFruit Drop, HLB Management

Tripti Vashisth, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor of horticultural sciences, has dedicated several years of research into the use of plant growth regulators like gibberellic acid (GA) to fight fruit drop in citrus. In the August All In For Citrus Podcast, Michael Rogers, director of the UF/IFAS Citrus Research and Education Center, interviewed …

A Shift Toward Soil Microbes in Young Citrus Tree Care

Josh McGillCitrus, Sponsored Content

SUMMARY: Many Florida citrus growers have made the decision to shift their focus away from saving older HLB-infected trees and toward protecting and strengthening young citrus trees, using soil probiotics, before too much damage is done. Understanding citrus trees’ vascular systemsCitrus trees have developed a complex but effective circulatory system for the uptake, storage, and utilization of water and nutrients. …

Sneak Peek: September 2022 Citrus Industry

Josh McGillCitrus Expo, CUPS, Sneak Peek

The September issue of Citrus Industry magazine centers on two topics: citrus under protective screen (CUPS) research and a wrap-up from the Citrus & Specialty Crop Expo. Three articles cover the latest CUPS findings from the University of Florida Institute of Food and Agricultural Sciences. An article by Arnold Schumann and his colleagues includes a summary of seven seasons of …

What to Do About Three Florida Citrus Pests

Josh McGillCitrus Expo, Pests

Entomologist Lauren Diepenbrock discussed control of three pests — lebbeck mealybug, Bulimulus sporadicus snails and diaprepes root weevils — at the recent Citrus & Specialty Crop Expo. The University of Florida Institute of Food and Agricultural Sciences researcher described the mealybug and snails as “new pest challenges” and diaprepes as the resurgence of an old pest. LEBBECK MEALYBUGLebbeck mealybug was …

Groundcovers Influence Citrus Yield and Water Use

Josh McGillIrrigation, Production, Tip of the Week

By Sandra M. Guzmán In Florida citrus, black fabric mulch groundcovers have been used for the control of the invasive Diaprepes abbreviatus (root weevil). However, these groundcovers can also serve as a best management practice (BMP) to optimize tree water uptake and maintain nutrients around the root system. A three-year University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) …

Using Technology to Support Citrus Management Decisions

Josh McGillTechnology

By Yiannis Ampatzidis and Sandra M. Guzmán Pests and diseases, nutrient deficiencies, tree stress from environmental conditions and other factors can be overwhelming. The arrival of sensors and small unmanned aerial vehicles (UAVs) make it possible to gather large amounts of data to assess risk factors and estimate possible crop performance scenarios based on the availability of resources. At the …

Minimize Mite Pressure in Citrus

Josh McGillPests

Hot temperatures and dry conditions in some parts of the Southeast add up to ideal conditions for mite populations to increase in citrus groves. Lauren Diepenbrock, University of Florida Institute of Food and Agricultural Sciences assistant professor and entomologist, said citrus can tolerate some spider mite pressure. Increased pressure, though, can leave an impact. “You can handle some amount of …

New Finger Lime Cultivars for the Specialty Citrus Market

Josh McGillLimes, Tip of the Week, Varieties

By Manjul Dutt The finger lime is an HLB-tolerant Australian native citrus that has been gaining popularity and importance in the last few years. Finger lime has several unique fruit qualities that set it apart from conventional sweet oranges and mandarins. The primary characteristic of this fruit is the round to teardrop-shaped juice vesicles, known as “citrus caviar,” that burst …

Citrus Industry Weighs In on Oxytetracycline Trunk Injection

Josh McGillHLB Management, Pesticides

Trunk injection of oxytetracycline (OTC) has been proposed as a means to manage HLB in citrus. University of Florida research shows OTC injections increase yield and fruit quality but cause tree injury. TJ BioTech expects to receive EPA registration in late fall of this year for an OTC product that could be injected into trees. Florida citrus industry growers and …

Water Shortage Is Latest Texas Citrus Concern

Josh McGillTexas, Water

A little more than 20 inches of rain has fallen on Dale Murden’s Texas grapefruit grove in 2022 — “about average for the year,” he says. But the majority of Texas is in severe drought, and that poses problems for Murden and other Texas growers, especially for the future. “We just are not seeing any rain or significant inflows in …

How to Manage Salt Stress in Citrus Groves

Josh McGillsoil, Tip of the Week, Water

By Amir Rezazadeh Saline soil and water damage many citrus groves in Florida. In general, when the dissolved salt concentration in soil or water increases, it is referred to as “saline” soil or water. But how much increase in salt concentration makes soil or water saline? Citrus plants’ major reactions to excessive salt in the soil or water are reduced …

First U.S. Detection of Citrus Yellow Vein Clearing Virus

Josh McGillCalifornia Corner, Diseases

The first detection of citrus yellow vein clearing virus (CYVCV) has been made in Tulare, California. The disease was detected during the California Department of Food and Agriculture’s (CDFA) routine multi-pest survey. The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) has confirmed positive identifications of the disease. CDFA is surveying for the disease in Tulare County …