January temperatures have been low for cold-hardy citrus growers. They are about to get lower, however, beginning early next week. GEORGIAAccording to weather.com, low temperatures in Tifton, Georgia, are forecast to drop into the high 20s, Sunday through Wednesday, with high temperatures only reaching the mid-30s on Tuesday and Wednesday. Similar weather conditions are expected across the region, so growers …
Have a Plan for Freeze Protection
Cold weather is in the forecast with the potential for freezing temperatures in the coming days. That means citrus growers should be thinking about their plans for cold protection. Chris Oswalt, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus Extension agent for Polk and Hillsborough counties, recently joined the All In For Citrus podcast to provide details …
Avoid Evaporative Cooling in Citrus Freeze Protection
Both University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) speakers at a Nov. 28 winter weather workshop warned about the risk of evaporative cooling when using irrigation to protect citrus from freezing temperatures. Microsprinkler irrigation has been the main form of cold protection for Florida citrus for at least the last five decades. The need to understand evaporative …
Freeze Protection Measures for Citrus
Multi-county citrus Extension agent Chris Oswalt discussed historical and current freeze protection measures in a virtual Dec. 22 OJ Break. PASSIVE MEASURESSome cold-protection measures are taken well in advance of freezes; Oswalt referred to them as passive measures. They include grove site selection, crop selection and cultural practices. One site selection consideration is planting groves at higher elevations, which are …
Cold Acclimation and Freeze Protection for Florida Citrus
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 …
Evaluation of Tree T-PEEs for Freeze Protection in Young Citrus
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 …
Freeze Probability and Protection Efforts
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-Hardy Citrus Producers Should Prepare for Potential Freeze
Cold-hardy citrus producers need to be prepared for a potential freeze event next week. Mary Sutton, University of Georgia (UGA) assistant professor and citrus Extension specialist, cautioned growers on the UGA Citrus Blog that temperatures are expected to drop in the low 30s across the region next Monday and Tuesday, and perhaps in the upper 20s in some areas. The …
Protect Trees Post-Freeze With Fungicide
Growers in the cold-hardy citrus region should consider fungicide application following snow last week and multiple days of running irrigation for freeze irrigation. That advice comes from Lindy Savelle, executive director of the Georgia Citrus Association, on the heels of historic snowfall recorded across the Southeast. “I’ve heard some people having up to 10 inches of snow where we grow …
Cold Protection Resources for Citrus Growers
Citrus growers in Florida’s Panhandle will have a greatly reduced citrus harvest this year because of a hard freeze in December 2022, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) reported. To help growers reduce damage in future freezes, UF/IFAS has tools that aid with citrus cold protection. Water is the most common form of cold protection …
Drought and Freeze Don’t Deter Grower
Apopka citrus grower Chip Henry reports that McGuire Groves received 9.5 inches of rain in March 2022. In March 2023, it received less than half an inch. Portions of Lee, Hendy and Collier counties were in an extreme drought as of April 6, according to the U.S. Drought Monitor. Many other areas of Florida, including where McGuire Groves is located, …
Don’t Rush Freeze Recovery
Do not apply recovery techniques immediately after a freeze, cold-hardy citrus growers were advised after freezes hit their groves in December 2022 and January 2023. The best strategy is to wait to observe new growth until at least late spring, researcher Muhammad Shahid told the Georgia Citrus Association at its recent annual meeting. Shahid is a University of Florida Institute …
Cold Acclimation Helping Trees Rebound From Freeze
Trees in the Sweet Valley Citrus region are more acclimated to cold temperatures than those in Central and South Florida. That is a reason that Bill Barber, Certified Crop Adviser and owner of Barber Ag Services, believes citrus trees in North Florida, South Georgia and South Alabama have rebounded well following the Christmas freeze event. “I first thought the worst. …
Farm Service Agency Offers Freeze Assistance
The U.S. Department of Agriculture’s (USDA) Farm Service Agency (FSA) in Georgia is reminding farmers and landowners of the assistance it offers in the wake of a freeze. The state’s citrus industry suffered damage during the five-night freeze that occurred in late December. The FSA programs are the Tree Assistance Program (TAP) and the Noninsured Crop Disaster Assistance Program (NAP). …
Taking Care of Trees After the Five-Night Freeze
“To some extent, every citrus variety has suffered from cold damage” due to the five-night freeze event that occurred in the cold-hardy citrus region Dec. 24–28. That report comes from Jake Price, Lowndes County Extension coordinator for University of Georgia Extension. “The site of our citrus research plots in Valdosta reached a low of 16 degrees, which is the lowest …
Legislation Introduced for Growers Impacted by Freezes
U.S. Representatives Greg Steube (R-Fla.) and Darren Soto (D-Fla.) introduced the Temperature Endorsement for Multi-Peril Policies (TEMP) Act to protect farmers impacted by crop-damaging freezes. Rep. Steube proposes this legislation for inclusion in the 2023 farm bill. “This winter, a freeze caused significant damages to Florida’s citrus, sugarcane, ornamental plants, and many fruits and vegetables. Currently, specialty-crop insurance policies are expensive, leaving farmers with limited options …
Georgia and Florida Citrus Avoid Major Freeze Damage
The Georgia and Florida citrus industries reportedly came through the Sunday morning freeze with no significant widespread damage. In Florida, temperatures in the 20s were the coldest most groves had experienced in several years. “Everything looks good,” said Lindy Savelle, president of the Georgia Citrus Association. “We got some burn on the top of trees, but very little.” Most of …
Cold Protection: The Tried and the New
Tried and proven cold protection techniques and changes to the Florida Automated Weather Network (FAWN) were discussed in a virtual Nov. 17 winter weather program. Chris Oswalt, citrus Extension agent for Hillsborough and Polk counties, summarized the decades-old cold protection techniques still practiced by Florida citrus growers. One of the first steps in cold protection is being prepared by staying …
Citrus Growers Dodge Freeze
Lindy Savelle received numerous calls and texts from relatively new southern Georgia citrus growers prior to a mild freeze the morning of Dec. 2. “They were asking, ‘What should I do?’” said Savelle, president of the Georgia Citrus Association. The new growers were concerned because lows of 26 and 28 that morning were the coldest in the region in several …
Get Florida Freeze Updates With Winter Weather Watch
By Chris Oswalt There was a time back in 1962, on Dec. 12 and 13, when a devastating freeze in Florida decimated a significant portion of the state’s citrus industry. In Polk County, the freeze caused serious damage to 134,000 acres of citrus. In 1963, citrus growers were concerned about receiving timely weather information and frost warning bulletins. Back then, …



























