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, … Read More

CUPS: Favorite Varieties to Grow

Ernie NeffCUPS

CUPS

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 … Read More

Economics of CUPS and IPCs

Ernie NeffCUPS, Economics, HLB Management

At Citrus Expo, economist Ariel Singerman discussed the economics of producing citrus under protective screen (CUPS) and covering young trees with individual protective covers (IPCs). The primary purpose of both strategies is to exclude HLB-spreading Asian citrus psyllids. Singerman is with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Singerman calculated that a CUPS grower who insures … Read More

CUPS Research in Indian River Area

Ernie NeffCUPS

CUPS

Research into citrus under protective screen (CUPS) in the Indian River area was discussed by students of Rhuanito (Johnny) Ferrarezi at the Florida State Horticultural Society meeting in June. The project at the Indian River Research and Education Center (IRREC) grows grapefruit, the citrus of most economic importance in the Indian River region. Ferrarezi, a University of Florida Institute of … Read More

Many Aspects of CUPS Addressed

Ernie NeffCUPS, Research

CUPS

Arnold Schumann, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor of soil science, reports on his five years of research into citrus under protective screen (CUPS) for fresh fruit. He is one of the first researchers in Florida to do extensive, hands-on research into the system. His discussion is part of the current All In For Citrus … Read More

Grower Optimism Tempered by Pricing

Ernie NeffCitrus, CUPS, Economics

CUPS

Central Florida citrus grower Jerry Mixon of KLM Farms recently expressed optimism that is tempered by current orange prices. “I am optimistic, and it seems like the industry does have that same feeling,” Mixon says. “Yields are up. I have heard a little bit that (pound) solids are up a little bit, particularly Valencia crops … Trees look better.” Mixon … Read More

Grapefruit Grown Under Protective Screens Maximizes Fruit Yield

Daniel CooperCitrus Greening, CUPS, Grapefruit, Industry News Release, Research

grapefruit

Growers of one of Florida’s signature citrus crops may see more production and possibly less of the deadly citrus greening disease. Researchers have worked for four years growing grapefruit under protective screens on a 1-acre experimental plot at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), and they’re seeing encouraging results. UF/IFAS scientists and a few commercial … Read More

Indian River Citrus Trials Discussed

Ernie NeffCUPS

HLB, irrigation, nutrition

Researcher Rhuanito “Johnny” Ferrarezi recently discussed experiments on citrus varieties and citrus under protective screen (CUPS) in the Indian River area. Ferrarezi is a University of Florida Institute of Food and Agricultural Sciences assistant professor of citrus horticulture at the Indian River Research and Education Center (IRREC). One large trial Ferrarezi discussed will be of grapefruit, navel and mandarins on … Read More

Good Varieties for CUPS

Ernie NeffCUPS

CUPS

At a recent field day for citrus under protective screen (CUPS) in Polk County, researcher Arnold Schumann discussed varieties that appear to work well in the system. Schumann is with the University of Florida Institute of Food and Agricultural Sciences Citrus Research and Education Center. The primary purpose of growing citrus under protective screen is to keep out the Asian … Read More

Taking Technology to the Grove

Tacy CalliesCUPS, Technology

By Ernie Neff Jerry Mixon’s use of netting to keep birds from blueberries helped pique his interest in growing citrus under protective screen (CUPS) to exclude HLB-spreading psyllids. But he credits University of Florida researcher Arnold Schumann with helping him bring his Polk County CUPS project to fruition. Mixon met Schumann in 2015, the year after Schumann’s 1-acre CUPS was … Read More

CUPS Heat and Cold Considerations

Ernie NeffCUPS

CUPS

Growers producing fresh fruit inside the relatively new citrus under protective screen (CUPS) structures in Florida have some unique heat and cold considerations. Chris Oswalt, citrus Extension agent for Polk and Hillsborough counties, spoke on this subject at a recent CUPS field day in Alturas, Florida. “Based on some of the early data that we have from the weather stations … Read More

Research Update: Citrus Under Protective Screen

Tacy CalliesCUPS

By Arnold Schumann, Timothy Ebert, Laura Waldo, Danny Holmes, Napoleon Mariner, Gary Test, Chris Oswalt, Rhuanito Ferrarezi and Ricardo Lesmes Two studies with citrus under protective screen (CUPS) were established at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC) and Indian River Research and Education Center (IRREC) in 2013–14. The goal … Read More

Grower Optimistic About Citrus Under Protective Screen

Ernie NeffCUPS

CUPS

Jerry Mixon of KLM Farms hosted about 40 growers, researchers and others at his citrus under protective screen (CUPS) facility in Alturas on Nov. 15. Alturas is between Bartow and Lake Wales in Polk County, Florida. At the field day, Mixon discussed his experience with the growing system and his expectations for it. He has 30 acres under screen that … Read More

CUPS Protects Citrus from HLB and Storms

Daniel CooperCitrus Greening, CUPS, Research

citrus

A system designed to protect citrus trees from the deadly greening disease withstood the ravaging winds of Hurricane Irma last year, University of Florida scientists say. With reinforcements installed after the storm, they’ll likely withstand even more dangerous storms. Using citrus under protective screening (CUPS), growers can keep the Asian citrus psyllids away from their trees, said Arnold Schumann, a … Read More

Semiautonomous Vehicle Used in CUPS

Ernie NeffCUPS

CUPS

University of Florida Institute of Food and Agricultural Sciences researcher Arnold Schumann showed off a semiautonomous vehicle at the recent Citrus Research and Education Center 100th anniversary celebration. The vehicle is used in the center’s citrus under protective cover (CUPS) facility, designed to keep trees free of HLB-spreading psyllids. Schumann discusses the vehicle and its uses. “We designed that vehicle … Read More