Cold Acclimation and Freeze Protection for Florida Citrus

Tacy CalliesFreeze Protection

By Chris Oswalt and Davie Kadyampakeni In preparation for winter in Florida, citrus growers must first understand some essential concepts related to protecting citrus from freezing temperatures. Specifically, growers need to know when and how to protect citrus trees from freeze damage. WHEN TO PROTECT When (i.e., at what critical temperature) will damage begin to occur? This temperature is dependent on …


UF/IFAS Experts: Growers Ready for Freezes

Daniel CooperFreeze Protection

When the next frost threatens Florida’s crops, growers will do their best to make sure your favorite foods are protected from the potentially crippling chill, say University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) experts. For example, citrus growers use wind machines and microsprinklers to ensure freezing temperatures don’t ruin the fruit, said Chris Oswalt, a multi-county citrus …


Cold-Tolerant Citrus Industry Update

Jaci SchreckengostFreeze Protection, Top

Two University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professionals spoke at the recent Cold-Tolerant Citrus Production for the Southeastern Coastal Plain event about the current state of the industry. UF/IFAS entomologist Xavier Martini said he has seen growth in interest for cold-tolerant citrus between 2016 and 2017. He also said he has seen an increase in the …

Diversification Possibilities for Cold-Tolerant Citrus

Jaci SchreckengostFreeze Protection, Top

North Florida and south Georgia citrus growers now have opportunities to diversify their crops and expand their season with cold-tolerant citrus varieties. Peter Andersen, a professor of horticulture at the University of Florida Institute of Food and Agricultural Sciences North Florida Research and Education Center in Quincy, said satsumas make up a majority of the citrus industry in the area. …


FAWN’s Cold Protection Toolkit Explained

Ernie NeffFreeze Protection

Citrus growers and other agriculturists can use the Florida Automated Weather Network’s (FAWN) Cold Protection Toolkit to make decisions when using irrigation for cold protection. FAWN Project Manager Rick Lusher provides an overview of what he calls the toolkit’s “step-by-step guide.” “You can look at a four-day forecast from the National Weather Service, and then you can go down to …


Events Educate Growers on Cold-Tolerant Citrus

Jaci SchreckengostFreeze Protection, Top

Events across the Southeast are being held to help meet growers’ needs for information and resources on growing cold-tolerant citrus. Many north Florida and south Georgia growers are interested in these crops as weather patterns begin to shift. One event was Cold Tolerant Citrus Production for the Southeastern Coastal Plain, held on Dec. 13. “We’re trying to have a meeting …

Cold-Tolerant Citrus Production Event

Jaci SchreckengostFreeze Protection, FSMA, Top

More than 100 growers from Florida and Georgia gathered at the Cold-Tolerant Citrus Production for the Southeastern Coastal Plain educational event on Dec. 13. Bob Hochmuth, director of the University of Florida Institute of Food and Agricultural Science’s (UF/IFAS) Suwannee Valley Agricultural Extension Center, introduced the event, which was held at the center. Morning presentations by UF/IFAS speakers included information …

Freeze Probability and Protection Efforts

Ernie NeffFreeze Protection

Florida hasn’t had a widespread tree-killing citrus freeze in years. That’s very fortunate since the industry has been dealing with the highly destructive HLB disease since 2005 and with negative impacts of Hurricane Irma since September. However, a damaging freeze is always a possibility at this time of year. Consequently, multi-county citrus Extension agent Chris Oswalt held a winter weather …


Cold-Tolerant Citrus for Southeastern Growers

Jaci SchreckengostFreeze Protection, Top

The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) will host the Cold-Tolerant Citrus Production for the Southeastern Coastal Plain educational program for growers. The event will take place Dec. 13 at the Suwannee Valley Agriculture Extension Center in Live Oak, Florida. “It’s an educational event for people that are interested in producing cold-tolerant citrus,” said Clay Olson, …

Freeze Damage Symptoms and Recovery for Citrus

Tacy CalliesFreeze Protection, Weather

By Mongi Zekri, Chris Oswalt, Steve Futch and Laurie Hurner The extent of cold injury to citrus depends on a number of factors, and its expression may occur over an extended period of time. Factors responsible for freeze damage include minimum temperature, duration of freezing temperatures and stage of tree acclimation. Susceptibility of trees to freezing temperatures can also be …

citrus cold protection

Will There Be a Citrus Freeze?

Ernie NeffFreeze Protection, Weather

Rick Lusher, project manager for the Florida Automated Weather Network (FAWN), won’t predict whether there’ll be a citrus freeze this season. But he did tell growers in Sebring on December 15 what weather the federal government is expecting through freeze season. “The most recent three-month outlook that NOAA (National Oceanic and Atmospheric Administration) provides shows above normal temperatures and below …

Evaluation of Tree T-PEEs for Freeze Protection in Young Citrus

Tacy CalliesFreeze Protection, Water

By Kelly T. Morgan and Stephen J. Futch Water has been used for cold protection in past freezes with mixed success. Low dew point temperatures and high winds can promote evaporative cooling when insufficient amounts of water are used. Various methods have been used to protect young citrus trees from frost and freeze conditions. Among these, the use of covers …