UF/IFAS Welcomes New Entomologist

Tacy CalliesCitrus, Industry News Release, IPM

In mid-April, Tolulope Morawo began a new position as an assistant professor of entomology at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center (IRREC) in Fort Pierce. He joins UF’s statewide effort to protect crops and natural environments with integrated pest management (IPM) strategy. In 2017, Morawo completed his doctorate degree …

HLB a Target of MIT Research

Ernie NeffHLB Management, Research

Citrus, olives and bananas are under threat in many areas due to diseases that affect plants’ circulatory systems and that cannot be treated by applying pesticides. Huanglongbing (HLB) is the disease inflicting heavy damage on citrus in Florida and many other parts of the world. These diseases are difficult to detect early and to treat, given the lack of precision …

How Arizona Has Avoided HLB

Ernie NeffHLB Management

Although the Asian citrus psyllid (ACP) is found in Arizona at very low levels, the devastating huanglongbing (HLB) disease, also known as citrus greening, is not. John Caravetta, associate director of the Arizona Department of Agriculture (AZDA), discussed successful efforts to control the psyllid and prevent HLB from infecting orchards. Caravetta reported that “AZDA is conducting trapping for ACP in …

psyllids

Watch Out for Invasive Species

Daniel CooperPests

By Clint Thompson April is Invasive Plant Pest and Disease Awareness Month, and the United States Department of Agriculture (USDA) wants help in identifying invasive species that threaten the food supply and cause plant diseases. Samantha Simon, USDA’s executive director of emergency and domestic programs, says invasive species can threaten agriculture and many farming operations, especially in the Southeast. She …

New HLB Find in California

Len WilcoxCalifornia Corner, HLB Management

A new finding of huanglongbing (HLB) has been reported in a residential citrus tree in the city of San Bernardino, California. This is the first confirmed find of the citrus disease in the city and follows the recent detections of several HLB-positive trees located in Colton, Montclair and Ontario. The California Department of Food and Agriculture (CDFA) is working with …

acp

Incentive-Based Tariffs and Invasive Pests

Ernie NeffPests, Trade

Incentive-based policies have had success in some industries by helping regulate air quality, control pollution and protect wildlife and fisheries. But two University of Maryland professors in agriculture and resource economics have determined that incentive-based tariffs likely aren’t the answer to controlling invasive pests in imported fruits and vegetables. Erik Lichtenberg and Lars Olson published their findings recently in the …

Nursery Diseases at Planting: What to Watch for

Tacy CalliesDiseases, nursery

By Ozgur Batuman and Megan Dewdney Citrus nurseries work very hard and put forth considerable effort to reduce pest and disease problems. However, there continues to be problems with certain diseases, because the nursery environment for growing citrus trees is ideal for many pests and diseases. Basic principles of good nursery sanitation practices together with screening and removing suspected or …

Effect of Planting Density and Enhanced Nutrition on Grapefruit

Tacy CalliesNutrition

By Rhuanito Soranz Ferrarezi, Dinesh Phuyal, Davie Kadyampakeni and Kelly Morgan The Indian River District is the world’s premier grapefruit production region due to a warm, ocean-facing humid climate and Flatwoods soils. The geographical location leads to the production of fruit with thin rinds and exceptional juice and color that has been a high-value export delicacy in Europe and Asia. …

nutrition

Nutrition Questions in Need of Answers

Ernie NeffNutrition

A sheet of “Nutrient Management Concept Questions” was passed out at the January Citrus Research and Development Foundation (CRDF) board meeting in Fort Pierce. It included questions that growers and researchers have agreed need to be answered in future nutrition-related research funded by CRDF. Rick Dantzler, CRDF chief operating officer, explains how the questions were developed. “We had a Nutrition …

citrus

Pests in CUPS and IPCs

Ernie NeffCUPS, Pests

Citrus under protective screen (CUPS) and young trees covered with individual protective covers (IPCs) have generally been well protected from HLB-spreading Asian citrus psyllids, but not from all other pests. Entomologist Jawwad Qureshi says the psyllids only get to trees when a CUPS structure or IPC is damaged, as happened to CUPS during Hurricane Irma in 2017. “Otherwise they do …

CDFA’s Year in Review

Len WilcoxCalifornia Corner, Pests

The mission of the California Department of Food and Agriculture (CDFA) is to promote and protect the food supply, enhance trade and protect the environment. The agency annually provides information on the steps it takes to fulfill its mission goals. In such a diverse and highly populated state, the challenges are great. Much of the growing regions are geographic islands …

planting

HLB: Learning From Brazil

Ernie NeffHLB Management

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher Rhuanito (Johnny) Ferrarezi reports on a trip to Brazil to learn about HLB control methods. Ferrarezi, who works at the UF/IFAS Indian River Research and Education Center, made the trip with former multi-county citrus Extension agent Steve Futch. “Their disease incidence is way lower than in Florida,” Ferrarezi says. …

HLB and Grove Budgeting

Ernie NeffHLB Management

Citrus Research and Education Center Director Michael Rogers says while much progress has been made in dealing with HLB, many growers now face economic woes because of high orange juice inventories. He discusses some decisions that growers facing those economic issues will have to make and offers some suggestions. “We’ve come a long way since HLB came to Florida,” Rogers …

chemicals

UF Researcher Seeks Biological Control of ACP

Tacy CalliesPests, Regulation

In the latest All In For Citrus podcast, Ozgur Batuman talks about his research into biological control of the Asian citrus psyllid (ACP). Batuman is an assistant professor at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Southwest Florida Research and Education Center. ACP control is necessary for management of citrus greening disease, or huanglongbing (HLB). Batuman’s …

CUPS Featured at Field Day

Ernie NeffCUPS

Growers already producing fresh citrus under protective screen (CUPS) were among approximately 30 attendees at a CUPS field day Dec. 12 at the Citrus Research and Education Center in Lake Alfred, Florida. Lead CUPS scientist Arnold Schumann with the University of Florida Institute of Food and Agricultural Sciences and other researchers described activities in the screened-in facility. Attendees saw much …

A Closer Look at CUPS-Grown Grapefruit

Tacy CalliesCUPS, Grapefruit

By Arnold Schumann, Ariel Singerman and Yu Wang Grapefruit production in Florida has been drastically reduced by huanglongbing (HLB) disease, from 40.9 million boxes in 2003–04 to 4.5 million boxes in 2018–19, according to the U.S. Department of Agriculture. Grapefruit varieties are particularly vulnerable to HLB due to cumulative losses from stunted tree growth, low fruit yield, high-percentage fruit drop, …

Aiming to Improve Production of Florida Grapefruit

Daniel CooperGrapefruit, Industry News Release

(UF/IFAS) — Dinesh Phuyal, who is pursuing a master’s degree in horticultural sciences from the University of Florida’s College of Agricultural and Life Sciences, recently garnered a prestigious Yara North America Crop Innovation Scholarship. The award is Phuyal’s fourth academic honor this year for his efforts to improve Florida grapefruit tree size, fruit yield and fruit quality. Phuyal studies higher …

CUPS

CUPS: Favorite Varieties to Grow

Ernie NeffCUPS

After five years of growing citrus under protective screen (CUPS), Arnold Schumann has named Ray Ruby grapefruit and Honey Murcott tangerine as his favorite varieties to grow in the system. Schumann is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher at the Citrus Research and Education Center (CREC) in Lake Alfred. He addressed the topic of …

Nutrition: What Growers Want to Know

Ernie NeffNutrition

A group of growers, production managers and researchers hopes to ensure future nutrition research funded by the Citrus Research and Development Foundation (CRDF) answers grower questions about nutrition. The dozen-plus members of CRDF’s Nutrition Working Group held their first meeting Oct. 30 at the Citrus Research and Education Center in Lake Alfred. The panel is about evenly split between grower …

IPCs for HLB Prevention in Young Trees

Tacy CalliesHLB Management

By Fernando Alferez, Susmita Gaire, Ute Albrecht, Ozgur Batuman, Jawwad Qureshi and Mongi Zekri Controlling the Asian citrus psyllid vector of huanglongbing (HLB) is critical, especially in young trees. Reducing HLB incidence is essential for tree survival and productivity under current endemic conditions. Individual protective covers (IPCs) are a novel strategy based on psyllid exclusion by means of a protective …