Rootstock/Scion Combos: What Works and What Doesn’t

Tacy CalliesRootstocks, Scions

By Ernie Neff For Phil Rucks and Tom Powers at Phillip Rucks Citrus Nursery in Frostproof, Florida, selecting rootstock and scion combinations starts by acknowledging that some varieties just don’t do well with HLB. “We don’t recommend some varieties regardless of rootstock,” Rucks says. Powers says varieties that are especially difficult to grow with HLB are Hamlin, midsweet and pineapple …

Lemons in Florida: Something New Under the Sun?

Tacy Callieslemons

By Fred Gmitter, Bill Castle and Jude Grosser King Solomon once pointed out that “there is nothing new under the sun,” meaning that what has happened before will happen again. Although the idea of growing lemons in Florida is viewed by some these days as a new thing, Florida actually has a fairly long history of lemon production. FLORIDA LEMON …

Global Perspectives

Brazil’s Citrus Forecast for 2018–19

Tacy CalliesGlobal Perspectives

By Marcos Fava Neves The season’s first orange crop forecast is one of the most important numbers of the year for Brazil’s orange juice business. The citrus forecast for 2018–19 was published on May 9 by Fundecitrus, in cooperation with Markestrat, University of São Paulo and São Paulo State University. SIZE AND VARIETIES Brazil expects 288.29 million boxes of oranges …

Field Testing of New HLB-Tolerant Scions and Rootstocks

Tacy CalliesResearch, Rootstocks, Scions

By Rhuanito S. Ferrarezi, Jude W. Grosser, Fred G. Gmitter, Ed Stover and Kim Bowman Citrus is Florida’s most important agricultural commodity. The state produces citrus for different markets: round oranges for juice; navels, mandarins, grapefruit and lemons for the fresh-fruit industry; and lemons for extracting peel oil for processing. Huanglongbing (HLB) disease affects all citrus varieties. Since the discovery …

Strong Finish for 2017–18 Brazilian Citrus Season

Tacy CalliesGlobal Perspectives

By Marcos Fava Neves The last Fundecitrus announcement (April 10) of the season for the Brazilian citrus crop was 398.35 million boxes. This includes: 77.48 million boxes of Hamlin, Westin and Rubi 18.02 million boxes of Valencia Americana and Valencia Argentina 118.47 million boxes of Pera Rio 139.62 million boxes of Valencia 44.76 million boxes of Natal (Navel) SEASON SUMMARY …

The Road to Recovery

Tacy Callieshurricane

Growers discuss lessons learned from Hurricane Irma, replanting plans, grove rehabilitation, crop insurance and more. By Tacy Callies Florida citrus growers awaiting Hurricane Irma federal aid and insurance payouts are doing their best to keep crops healthy until more money is available. Paul Meador, citrus grower and head of Everglades Harvesting & Hauling in LaBelle, took a big hit from …

Visiting Southern Gardens Citrus

Abbey TaylorCitrus

Last week, members of the AgNet Media team had the opportunity to visit the Everglades Agricultural Area (EAA) to meet with some of the area’s key players. During the three-day tour, the team explored various agricultural operations, including Southern Gardens Citrus. The Southern Gardens Citrus visit began with a tour of Devil’s Garden Grove, led by grove manager Luke Davis. …

How Will Irma Affect Citrus Canker Management?

Tacy CalliesDiseases

By Evan G. Johnson The citrus canker season is quickly approaching again, so it is time to start planning your canker management program to avoid fruit drop and fresh-market quality loss. It is easy to forget the importance of controlling citrus canker with the current state of HLB in Florida. However, citrus canker can cause almost complete crop loss if …

An Inside Look at Brazil’s Citrus Production Practices

Tacy CalliesProduction

By Stephen Futch and Ariel Singerman This article summarizes observations on citrus production during a June 2017 trip to Araraquara and the Southwest region of the state of São Paulo, Brazil. INDUSTRY OVERVIEW The citrus industry in São Paulo is divided into five production regions (North, Northwest, Central, South and Southwest). This regional classification is based upon climatic characteristics and …

Pruning and Controlled-Release Fertilizer to Rehabilitate HLB Trees

Tacy CalliesNutrition, Production

By Tripti Vashisth and Troy Gainey Pruning is one of the oldest horticultural practices that changes the form and growth of a tree. The pruning process 1) adjusts tree shape and the ratio of framework to fruit-bearing shell of the canopy, 2) alters the shoot/root ratio and 3) changes the carbohydrate (food storage) status of the tree. Under Florida weather …

rootstocks

Some Rootstocks Succumbed to Irma

Ernie Neffhurricane, Rootstocks

Researchers inspecting their groves at the Southwest Florida Research and Education Center after Hurricane Irma found that trees on certain rootstocks were very likely to be uprooted. Fernando Alferez, a horticulturist at the Immokalee center, discusses the uprooted trees and hopes he has for fresh citrus growing. “This is anecdotal evidence from our experience here,” Alferez says. “What we saw …

Progress on Engineering HLB-Tolerant/Resistant Citrus

Tacy CalliesVarieties

By Manjul Dutt and Jude W. Grosser Huanglongbing (HLB) threatens the survival of the Florida citrus industry. Both conventional cultivars and genetically engineered cultivars that can grow in the presence of HLB have been developed at the University of Florida’s Citrus Research and Education Center (CREC) in Lake Alfred. Among the two citrus improvement techniques, engineering citrus remains the fastest …

HLB

Replanting Trees in the Face of HLB

Ernie NeffCitrus Greening, HLB Management, planting

  At Citrus Expo, Aaron Himrod of Himrod Citrus Nursery made the case for replanting citrus trees lost to HLB and other causes. “I think growers need to replant because we are having some success with young trees that we’re not having with older trees,” Himrod said. “The young trees are responding a lot better to our treatments. And we …

More Juice to Come from Brazil

Tacy CalliesGlobal Perspectives

By Marcos Fava Neves The first forecast of the 2017–18 Brazilian orange crop was published in May. Brazil expects a total of 364.47 million boxes, including the following: 68.49 million boxes of Hamlin, Westin and Rubi varieties 17.42 million boxes of Valencia Americana, Valencia Argentina, Seleta and Pineapple varieties 114.52 million boxes of the Pera Rio variety 123.04 million boxes …

Time to Get Serious About Trialing New Scion/Rootstock Combinations

Tacy CalliesRootstocks, Scions

By Jude W. Grosser and Frederick G. Gmitter It’s no secret that citrus greening disease, or HLB, continues to take a heavy toll on the beloved Florida citrus industry. It has been estimated that the industry will need to replant over 3 million trees per year for the next 10 years just to get back to normal. So the million-dollar …

Understanding Soil-Moisture Sensor Data

Tacy CalliesCitrus, Irrigation

By Arnold Schumann and Laura Waldo Florida citrus trees may require irrigation throughout the year due to the extremely sandy soils with low water-holding capacities and the warm subtropical climate with distinct drought periods in spring. Citrus trees are evergreen and may be actively growing at any time, with no true dormant phase. HLB-affected trees are particularly prone to multiple …

Citrus Canker Management for 2017

Kelsey FryDiseases

By Evan Johnson The citrus canker season is quickly approaching again, so it is time to start preparing your canker management plan. It is easy to forget the importance of controlling citrus canker with the current state of HLB in Florida. However, citrus canker can cause almost complete crop loss if environmental conditions are favorable for disease early in the …

Controlling ACP and Other Pests as Critical as Ever

Tacy CalliesCitrus Greening

By Jawwad A. Qureshi and Philip A. Stansly More than a decade has passed since 2006, when huanglongbing (HLB) or citrus greening disease was identified in Florida. By then, the disease had already spread widely and went unrecognized due to high psyllid populations and a disease incubation period of months or years between infection and symptom expression. Nevertheless, management of …

A Holistic Approach to Production

Tacy CalliesCitrus Greening, PFD

By Owen “Sonny” Conner EDITOR’S NOTE: Citrus Industry magazine is providing a platform for growers to express their experiences and share their stories as we unite in the quest to fight HLB and bring the citrus industry back to a healthy condition. The views stated in this article are those of the author and do not represent those of AgNet …

growers

Citrus Greening, Invasive Species Head 2016 UF/IFAS Stories

Daniel CooperCitrus, HLB Management, Industry News Release

A trio of projects aimed at helping Florida producers cope with the bacterial disease known as citrus greening topped the list of stories shared by the University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS) in 2016. This year marked the beginning of the state’s second decade battling greening disease, which is also known as huanglongbing or HLB. Other top …