hlb

USDA Grants $45 Million for HLB Research

Ernie NeffResearch

The U.S. Department of Agriculture’s National Institute of Food and Agriculture (USDA-NIFA) recently awarded 12 grants totaling more than $45 million for research to combat HLB. “USDA-NIFA’s Emergency Citrus Disease Research and Extension Program (ECDRE) brings the nation’s top scientists together to tackle this problem,” said Parag Chitnis, NIFA’s acting director. Following are the 12 ECDRE projects funded by USDA-NIFA …

Enhancing Soil Health With Cover Crops

Tacy CalliesCover Crops, Soil Improvement

By Sarah Strauss, Antonio Castellano-Hinojosa, Davie Kadyampakeni, Ramdas Kanissery and Tara Wade Soil health is generally synonymous with soil quality and refers to the capacity of a soil to sustain biological productivity, maintain environmental quality and promote plant health. Soils are complicated ecosystems, and discussions of soil health must consider the links between soil functions and soil-based ecosystem services, such …

Sequencing Brings HLB Resistance Closer

Ernie NeffBreeding, Research

University of Florida (UF) scientists achieved a major milestone in their quest to develop an HLB-resistant tree by sequencing the genome of a fruit plant that’s a close cousin to citrus trees. HLB is also known as greening disease. UF Institute of Food and Agricultural Sciences researchers sequenced the genome from trifoliate orange, in collaboration with scientists from the University …

citrus

Commissioner Fried on Citrus Forecast

Tacy CalliesCrop Forecast

Florida Agriculture Commissioner Nikki Fried offered the following statement on the initial citrus crop forecast for the 2020-21 season released today by the U.S. Department of Agriculture (USDA): “When Americans think of wellness and health, their thoughts turn to Florida orange juice and fresh citrus, especially during these unprecedented times. Despite the challenges that Florida’s citrus growers have faced as a …

Viroid Found on Georgia Citrus

Ernie NeffDiseases

Hop stunt viroid (HSVd) was found on citrus in Georgia for the first time this year. University of Georgia Cooperative Extension warns that HSVd and other viroids could pose a threat to the state’s growing citrus industry in susceptible varieties. Leaf samples were collected in May and June from 12 different citrus plants in two nurseries in southern Georgia. Nine …

Quarantine Expansion for HLB in California

Len WilcoxCalifornia Corner, HLB Management

A quarantine expansion has been declared following the detection of the citrus disease huanglongbing (HLB, also known as citrus greening) in five residential citrus trees located in Rancho Cucamonga, California. This is the first time the disease has been confirmed in Rancho Cucamonga, marking the fifth city in San Bernardino County to have had a positive detection of HLB. California …

citrus greening

Use More Micronutrients for HLB

Ernie NeffNutrition

HLB-affected citrus trees benefit from micronutrients at higher-than-recommended rates, Tripti Vashisth reported in a virtual Florida Citrus Growers’ Institute presentation. Vashisth, a University of Florida Institute of Food and Agricultural Sciences researcher, said that a 20 percent higher-than-recommended rate of micronutrients can improve productivity in trees with HLB. The Florida Citrus Growers’ Institute is normally held in Avon Park in …

Obtaining Optimal Peel Color of Fresh Florida Citrus

Tacy CalliesFresh

By Mark A. Ritenour and Fernando Alferez Color development in citrus during fruit maturation is a complex process that involves chemical and physiological changes. This includes chlorophyll (green pigments) breakdown and carotenoid (orange and yellow pigments) biosynthesis. The final color of each citrus variety mainly depends on the final composition of carotenoids, with citrus being among the richest fruit sources …

Peptide Could Restore Florida Citrus

Tacy CalliesHLB Management

CghSAMPa, the peptide found in the fruit of greening-tolerant Australian finger limes, is believed to be the first substance capable of controlling huanglongbing (HLB, also known as citrus greening). University of California, Riverside and Invaio Sciences, Inc. have partnered to advance the peptide research with hopes of bringing an HLB solution to commercialization by 2023. During a recent seminar hosted …

HLB Solution Could Be Available in Three Years

Tacy CalliesHLB Management

University of California, Riverside (UCR) scientist Hailing Jin believes she has found a substance capable of controlling the deadly citrus greening disease known as huanglongbing (HLB). The potential cure Jin discovered is a peptide found in the fruit of greening-tolerant Australian finger limes, which have been consumed by humans for hundreds of years. Invaio Sciences, Inc., a multi-platform technology company …

FDOC

Florida Citrus Acres Declining

Tacy CalliesIndustry News Release

Florida’s struggling citrus industry is using nearly 50 percent fewer acres than 20 years ago, according to an annual end-of-season report from the U.S. Department of Agriculture (USDA). The USDA National Agricultural Statistics Service Florida Field Office calculated 419,542 citrus acres in Florida as the 2019–2020 growing season ended in July. The acreage figure was down 3 percent from the …

consumer

Consumer Acceptance of Genetic Technology

Tacy CalliesTechnology

Given that genetic engineering is a possible solution to citrus greening, understanding public perceptions of genetic technologies is important. Lisa House, director of the Florida Agricultural Market Research Center and a professor in the Food and Resource Economics Department at the University of Florida, made an online presentation during the recent Agricultural and Applied Economics Association annual meeting. She discussed …

Citrus Production Guide Available

Ernie NeffProduction

The 2020-2021 Florida Citrus Production Guide is now available. See the online version of the University of Florida Institute of Food and Agricultural Sciences resource. Hard copies of the guide can be obtained at local UF/IFAS Extension county offices. Get the list of citrus Extension agents here. It is always best to email or call the agent ahead of time …

Citrus Researcher Earns National Award

Tacy CalliesAwards, Industry News Release

Researcher. Scholar. Change agent. Nian Wang, a professor at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), has been recognized for all of these roles with an award from the American Phytopathological Society (APS) at its 2020 annual meeting. Wang received the Ruth Allen award, which honors people who have made an outstanding, innovative research contribution that has …

HLB

New Targets Found for HLB Treatments

Len WilcoxCalifornia Corner, Research

Thanks to recent advances in metabolic modeling, scientists are closer to gaining the upper hand on citrus greening (also known as huanglongbing or HLB), a disease that has wiped out citrus orchards across the globe. New models of the bacterium linked to the disease reveal control methods that were previously unavailable. Metabolic models of organisms are like road maps of …

Citrus Disease: What to Watch for in Georgia

Tacy CalliesDiseases

The citrus greening disease (huanglongbing or HLB) that has devastated Florida’s citrus industry over the past decade has not affected Georgia commercial production. However, growers should still be aware of the potential danger it can bring. According to Jonathan Oliver, fruit pathologist and Extension specialist in the Department of Plant Pathology at the University of Georgia (UGA), all confirmed HLB-positive …

Steger Forecast for Florida Oranges

Ernie NeffForecast

Elizabeth Steger, president of Citrus Consulting International, has forecast Florida’s 2020-21 orange crop at 62 million boxes. That is 8.35 percent fewer oranges than the 67.65 million boxes the state produced last season. [See the final 2019-20 season forecast by the U.S. Department of Agriculture (USDA) here.] Steger has been forecasting the size of Florida’s orange crop prior to the …

The Future Faces of Florida Citrus

Tacy CalliesScholarship

Meet the four students who received the FMC Citrus Ag Production Scholarships. By Tacy Callies The FMC Citrus Ag Production Scholarships (CAPS) program, a partnership between AgNet Media and FMC, was created to support Florida citrus production and encourage interested youth to pursue careers in citrus. Two University of Florida students and two Florida Southern College students each were awarded …

climate

Kaolin Particle Films for Citrus Under HLB Pressure

Tacy CalliesHLB Management

Managing the Asian citrus psyllid (ACP) that spreads citrus greening disease (HLB) has become a crucial task at the forefront of much research. One management option that has proven to reduce ACP populations while increasing tree growth and yield is particle film. During the 2020 virtual Florida Citrus Industry Annual Conference, University of Florida Institute of Food and Agricultural Sciences …