Citrus Leprosis: a Continuing Threat in Florida and North America

Tacy CalliesDiseases

By Richard F. Lee The old-timers called citrus leprosis “nailhead rust.” Prevalent in Florida in the early 1900s, the disease was first called leprosis in the 1920s by H.S. Fawcett. Although the disease was widespread in Florida at one time, it mysteriously disappeared in the mid-1960s. L.C. Knorr [University of Florida/Institute of Food and Agricultural Sciences Citrus Research and Education …

citrus greening

Justices Reject Challenge to Scott Citrus Veto

Daniel CooperCitrus, Citrus Greening, Industry News Release

by Jim Saunders, News Service of Florida Despite clear frustrations of some justices, the Florida Supreme Court on Thursday declined to invalidate Gov. Rick Scott’s veto of $37.4 million that lawmakers approved to compensate homeowners whose healthy citrus trees were cut down by the state more than a decade ago. The ruling pointed to circuit court cases in Broward and …

supreme court

Homeowners Want Quick Ruling on Canker Payment Veto

Daniel CooperCitrus, Citrus Greening, Industry News Release

from News Service of Florida Florida’s top court needs to decide this week on Gov. Rick Scott’s veto of $37.4 million in compensation to homeowners that had healthy citrus trees cut down by the state, attorneys challenging the veto argued in documents filed Tuesday. The class-action lawsuit, filed last week, involves homeowners in Broward and Lee counties who won judgments …

Scott Seeks to Scuttle Challenge to Citrus Money Veto

Abbey TaylorLegislative

Attorneys for Gov. Rick Scott argued Monday the Florida Supreme Court should reject a lawsuit challenging the governor’s veto of $37.4 million that would compensate homeowners for healthy citrus trees cut down by the state. Responding to the lawsuit filed last week in the Supreme Court, Scott’s attorneys filed a 22-page document that said the governor has broad line-item veto …

supreme court

Court Wants Quick Response on Citrus Veto

Daniel CooperCitrus, Citrus Greening, Industry News Release

from: News Service of Florida The Florida Supreme Court on Wednesday gave Gov. Rick Scott’s administration until noon on Monday to respond to a lawsuit challenging the governor’s veto of $37.4 million intended to go to residents whose healthy citrus trees were cut down as the state tried to eradicate the citrus canker disease. The Supreme Court set the deadline …

veto citrus money

Homeowners Seek to Overturn Scott Citrus Money Veto

Daniel CooperCitrus, Citrus Greening, Industry News Release

News Service of Florida Homeowners and their lawyers asked the Florida Supreme Court late Tuesday to overturn Gov. Rick Scott’s decision this month to veto $37.4 million intended for residents whose healthy citrus trees were cut down as the state tried to eradicate the citrus canker disease. Lawmakers included the money in the 2017-2018 budget to compensate residents of Broward …

citrus forecast

European Union Trade Breakthrough for U.S. Citrus

Daniel CooperCitrus, Trade

U.S. Secretary of Agriculture Sonny Perdue and Acting U.S. Trade Representative Stephen Vaughn announced that the European Union (EU) has amended its requirements for imports of U.S. citrus. Specifically, the EU has dropped its requirement that U.S. groves be surveyed for citrus canker, which eases entry of U.S. citrus into the EU market and saves growers millions of dollars in …

Buddha’s Hand Citron Could Play Role in Canker Resistance Breeding

Kelsey FryCitrus, Diseases

By Naveen Kumar, R.C. Ebel and P.D. Roberts Citrus canker became endemic in Florida after several introductions and eradication programs dating back to 1915. The citrus industry struggles for an effective, permanent program. Canker is an expensive disease due to the need to increase the number of sprays and products applied. Canker also causes enormous economic losses due to fruit …

Sneak Peek: March 2017 Citrus Industry Magazine

Tacy CalliesSneak Peek

The March issue of Citrus Industry magazine will help growers find funding sources for improvements to best management practices (BMPs). It also describes the impact the water bill is having on implementation of BMPs. Growers will want to read University of Florida professor Kelly Morgan’s article that details future changes to BMPs that are coming. Ground cover management can improve …

Citrus Grower Goes Undercover

Tacy CalliesHLB Management

Ed Pines’ solution to citrus greening is to grow fruit in a citrus undercover production system. By Catalina Pines “It’s said that necessity is the mother of all invention, and today I toured one way the citrus industry is fighting back against greening,” said Florida Commissioner of Agriculture Adam Putnam on Twitter after touring Precision Citrus on September 23. In …

putnam talks citrus

Adam Putnam: Citrus Industry ‘Still Blocking and Tackling’

Ernie NeffBactericides, Citrus Greening

“We’re an industry who’s a group of fighters,” Florida Commissioner of Agriculture Adam Putnam says in summarizing his talk Friday at the Indian River Citrus League’s annual meeting in Vero Beach. “With all the challenges that we’ve seen here on the River – from canker to hurricanes and the devastation caused by greening – we’re still blocking and tackling and …

florida citrus

Texas Citrus: Fruit Flies and Other Pesky Problems

Josh McGillGrapefruit

By: Ernie Neff  Mexican fruit flies were a major nuisance to Dale Murden this spring. “As a fresh fruit grower in south Texas, I have to say Mexican fruit fly is our biggest worry,” the citrus grower and president of Texas Citrus Mutual said. The fruit flies infested Texas’ three-county (Cameron, Hidalgo and Willacy) citrus industry in November 2015, prompting …

Canker Is Manageable, Grower Crop Advisor Says

Ernie NeffGrapefruit, Pests

Tom Stopyra, technical crop advisor for the Packers of Indian River, told more than 75 growers at an Immokalee seminar last week how his company gets excellent canker management utilizing a four-pronged program: “You have to control the leafminer. You have to have frequent copper sprays at a lower rate. You have to have windbreaks and sanitation, which is the …

Essential Oil Could Help Prevent Citrus Black Spot

Kelsey FryCitrus, Citrus Greening

By: Robin Koestoyo FORT PIERCE, Fla. – Dipping fruit after harvest with hot water and essential oil dips may reduce postharvest development of citrus black spot (CBS) lesions per fruit by up to 50 percent, according to new University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research. The new management techniques are the result of Jiaqi Yan’s recently …

severity

Greening Severity Increasing in Brazil

Daniel CooperBrazil, Citrus Greening

Despite a slowdown in Brazil’s citrus greening incidence growth rate in 2026, the severity of the disease continues to climb in trees remaining in the field, according to Fundecitrus’ annual citrus disease survey. Average severity rose from 22.7% to 27% across orchards of all ages, and from 25.9% to 31% when considering only orchards currently in production. The survey also …

orange crop

Brazilian Orange Crop Forecast Increased

Daniel CooperBrazil, Crop Forecast

Fundecitrus’ first re-estimate of the 2026–27 orange crop for Brazil’s São Paulo and Triângulo/Southwest Minas Gerais regions, released Sept. 10, indicates production of 263.15 million 40.8-kilogram boxes. That’s an increase of 7.95 million boxes, or 3.1%, from the initial estimate released in May. The revision stems from an upward adjustment in projected fruit weight for early- and mid-season varieties, which …

combining

Combining OTC Injections With Plant Defense Inducers

Daniel CooperHLB Management, Tip of the Week

By Lauren Fessler Mathews, Ana Redondo and Ozgur Batuman The positive impact of oxytetracycline (OTC) trunk injections for citrus production in HLB-infected trees has been well established. Additionally, there has been extensive work showing that plant defense inducers (PDIs) can help boost tree health and reduce symptom development from a variety of pathogens. Based on this, University of Florida Institute …

PDIs

PDIs Promising for Sustainable HLB Management

Daniel CooperHLB Management, Research

A recent University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) article addressed the use of plant defense inducers (PDIs) as sustainable alternatives to oxytetracycline (OTC) injection for HLB management. Researchers Lauren Fessler Mathews, Ana Redondo and Ozgur Batuman at the Southwest Florida Research and Education Center (SWFREC) authored the article. Slightly edited excerpts of the article follow: PDIs …

ascorbic acid

Study Sheds Light on the Use of Ascorbic Acid With OTC

Daniel CooperHLB Management, Research

Growers have always been innovators, testing new production practices in their groves. When you add a disease like HLB, those experiments get ramped up in the effort to seek solutions. A good example of this was a discussion that began last year among growers that ascorbic acid (vitamin C) might be helpful in extending the effectiveness of the oxytetracycline (OTC) …