USDA Disaster Declaration for Florida Growers Impacted by Freeze

Tacy Calliesfreeze, Industry News Release

Florida Gov. Ron DeSantis and the Florida Division of Emergency Management (FDEM) announced the U.S. Department of Agriculture’s (USDA) disaster designation for 17 counties and 10 contiguous counties impacted by the freezing temperatures that occurred in late January. View the USDA’s approval letter here. “With the approval of our request for a disaster declaration, farmers in Florida have resources available …

Put Predators to Work Against Lebbeck Mealybug

Josh McGillPests, Research, Tip of the Week

By Eric Middleton and Lauren Diepenbrock Lebbeck mealybug is an emerging pest in Florida citrus. Infestations can damage fruit, flowers and branches. The pest can even kill young trees in severe cases. Lebbeck mealybug is often difficult to manage with insecticides alone due to the pest’s tendency to feed in protected spaces and the thick wax that covers adult mealybugs …

OJ Is Half of Household Juice Purchases

Josh McGillCitrus, Florida Department of Citrus, Orange Juice

Orange juice (OJ) recently accounted for more than half of the fruit juice purchased by households, Florida Department of Citrus (FDOC) economist Marisa Zansler told the Florida Citrus Commission on March 16. Citing a report on the Household Purchase Dynamics in the Beverage Category, Zansler added that grapefruit juice represented only about 1.5% of fruit juice sales. All fruit juice …

Growers Needed to Aid Development of HLB Tool

Josh McGillHLB Management, Research

Excelsior Aerospace Corporation announced it is pursuing funding from the U.S. Department of Agriculture (USDA) to build a free tool that can rapidly detect, track and manage huanglongbing (HLB) disease. “On one end, our tool would serve growers in states such as Texas and California to detect early symptoms of ACP (Asian citrus psyllid) and HLB infection and take measures …

IPCs Improve Fruit Yield and Quality

Josh McGillHLB Management, IPCs, Research

By Fernando Alferez, Ute Albrecht, Susmita Gaire, Ozgur Batuman, Jawwad Qureshi and Mongi Zekri University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers established a field trial in February 2018 to evaluate the efficacy of individual protective covers (IPCs) to prevent Asian citrus psyllids from spreading HLB and to study the effects on tree growth and physiology. The …

ACP and the HLB Pathogen Are Made for Each Other

Josh McGillCitrus, HLB Management, Research

Nabil Killiny, an associate professor of plant pathology for the University of Florida Institute of Food and Agricultural Sciences, has been studying the relationship between the bacterium that causes HLB (Candidatus Liberibacter asiaticus) and its vector the Asian citrus psyllid (ACP). Globally, insect-borne vector pathogens are responsible for more than 700 plant diseases. HLB ranks high among those in terms …

production

Growers in Northern Regions Whetting Consumer Appetites

Josh McGillCitrus, Production

Citrus production in North Florida, South Georgia and South Alabama continues to expand rapidly. That increased production led to a successful marketing year for producers, says grower Kim Jones, who owns a citrus packing facility in Monticello, Florida, and is part-owner of a similar facility in Tifton, Georgia. “We’re selling every piece of fruit we pulled into both sheds this …

Early HLB Detection by Dogs

Josh McGillHLB Management, Research

By Amir Rezazadeh Huanglongbing (HLB), or citrus greening disease, has caused more than 70% decline in the production of oranges for juice and the fresh market in Florida. Once a tree is infected, there is no cure. Early detection followed by a rapid response is important to avoid further spread of the exotic pathogen. Delayed detection of HLB can result in …

Growing Matters: Safe Neonicotinoid Use Urged

Josh McGillBMPs, Growing Matters, News from our Sponsor

Growing Matters, funded by a consortium of agricultural chemical companies, recently launched its fourth annual BeSure! campaign to promote best management practices when using neonicotinoid products on farms and urban landscapes. The campaign uses a wide range of media channels to remind growers, crop protection applicators and others to ensure label directions and responsible stewardship measures are followed for neonicotinoid …

spray drift

Fruit Size and Spraying Interval Are Key for Canker Control

Josh McGillDiseases, Research

The size of fruit that should be sprayed, the spraying interval and ways to avoid copper phytotoxicity were among the citrus canker topics plant pathologist Megan Dewdney offered growers recently. Dewdney said fruit are most susceptible to canker when they are between 3/8 inch and 1.5 inches in diameter. The fruit rind becomes much more resistant when the fruit is …

areas

HLB Update in Georgia

Josh McGillGeorgia, HLB Management

A small amount of citrus greening disease (huanglongbing or HLB) can escalate quickly if growers are not careful. Jonathan Oliver, University of Georgia (UGA) assistant professor and small fruits pathologist, cautioned producers about the disease during the recent Georgia Citrus Association meeting. “The issue is not widespread yet (in Georgia) for sure,” said Oliver. “We don’t think the vector is …

Donaldson Tree Is ‘Beacon of Hope’

Josh McGillFlorida Citrus Commission, HLB Management

A recently discovered HLB-infected tree that is producing high levels of fruit holds hope for Florida’s citrus industry, according to Florida Citrus Commission (FCC) Chairman Steve Johnson. “By now, many of you have heard about the Donaldson tree,” said Johnson. “Recently rediscovered at USDA’s (U.S. Department of Agriculture) Whitmore Farm, this decades-old tree is abundantly producing early-season oranges and despite …

Soil Is Key to Setting Up Trees for Success

Josh McGillAgriculture, Nutrition, Soil Improvement

By Brad Turner As I started my regenerative journey five years ago, it conjured up memories of walking the family groves in the 1970s with my freshly sharpened eye hoe. I would follow the tractor as it pulled the offset chopper, crisscrossing between the widely spaced trees in all directions. The native grasses and broadleaf plants — including legumes like …

Mandarin Crop Losing Ground in Europe

Josh McGillInternational, Mandarins, Trade

In 2021–22, European Union (EU) mandarin production is forecast to decline 7.5% from the previous year to 2.9 million metric tons (MMT), according to the U.S. Department of Agriculture’s Foreign Agricultural Service. EU mandarin production may also be almost 5.5% lower than the 10-year average production of 3.1 MMT. The shortage in EU mandarin production is mainly the result of …

Lemon Production in Turkey to Skyrocket

Ernie NeffExport/Import, International

Lemon production in Turkey is expected to increase 27% to 1.4 million metric tons (MT) in 2021-22, the U.S. Department of Agriculture’s Foreign Agricultural Service reported recently. Last season, lemon production reached 1.1 million MT. Producers are increasing orchard areas due to lemon’s profitability compared to other citrus fruits. The main problems reported by lemon producers in Turkey are diseases …

Black Core Rot Being Studied

Josh McGillDiseases, International, Research

A new Hort Innovation project aims to shed some light on how black core rot happens in Australian groves so the citrus industry can learn how to better manage the disease. Black core rot caused by the fungus Alternaria spp. can be a problem for some citrus growers in the southern growing areas in Australia. Citrus infected with Alternaria spp. …

Flavor Summit Delves Deep Into the Science of Taste

Josh McGillCitrus, Florida, Research

In late February, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) hosted its second annual Flavor Summit. The hybrid in-person/online event was held at the Citrus Research and Education Center (CREC) in Lake Alfred. CREC and the UF Center for Smell and Taste hosted the event that took a deep dive into the science of how flavors …

Pointers for Pre-emergent Herbicide Use

Josh McGillHerbicides, Tip of the Week

By Ramdas Kanissery Weeds emerging in citrus rows are problematic as they compete for resources with the trees, support pests and interfere with grove operations like irrigation (Figure 1). Hence, effective strategies to control weed emergence should be in place.   Pre-emergence (or residual) herbicides are an excellent tool for the long-term suppression of weeds in tree rows. These herbicides …

New Research Shows How HLB Damages Trees

Josh McGillHLB Management, Research

Recent research describes in detail how HLB causes damage to citrus trees and presents the case that HLB is a pathogen-triggered immune disease. A pathogen-triggered immune disease results from the activation of an organism’s immune cells fighting a pathogen. Nian Wang, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor, took part in the research. This is the …

Finger Limes to Be Focus of Online Event

Josh McGillEvents

Finger limes will be the topic of a March 23 virtual symposium sponsored by the University of Florida Institute of Food and Agricultural Sciences Citrus Research and Education Center (UF/IFAS CREC). Finger limes are a unique citrus variety gaining interest among chefs, foodies and citrus growers. The symposium, targeted to commercial citrus and specialty crop growers and marketers, will be …