University of Florida Institute of Food and Agricultural Sciences researcher Nian Wang reported in a July 20 webinar that HLB is a pathogen-triggered immune disease. After explaining the sequence in which the disease attacks trees, he suggested ways growers can use that knowledge to combat HLB. Wang is a microbiologist and cell scientist at the Citrus Research and Education Center. …
All In For Citrus Podcast, June 2022
In the June episode of the All In For Citrus podcast, Michael Rogers, director of the Citrus Research and Education Center (CREC), speaks live and on-the-scene during the Florida Citrus Industry Annual Conference in Bonita Springs. He said the great turnout for the event, hosted by Florida Citrus Mutual, is indicative of the fighting spirit of the state’s citrus growers. …
How Weather Affects Pesticide Applications
By Matt Smith Editor’s note: This article grants one continuing education unit (CEU) in the Core category toward the renewal of a Florida Department of Agriculture and Consumer Services restricted-use pesticide license when the accompanying test is submitted and approved. Weather affects what pests you might be spraying for and the worker doing the spraying. There are environmental safety risks …
Sign Up Citrus Workers for Safety Program
Due to a surge in infections related to the COVID-19 Omicron variant, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) 2022 Ag Worker Safety Program is being offered virtually through June 30. It became available Feb. 1. UF/IFAS has alerted fresh citrus growers, packers and shippers about the program’s availability. This annual bilingual training is designed to …
All In For Citrus Podcast, July 2021
A pest problem in citrus under protective screen (CUPS), heat stress guidance, and Citrus Expo news headline the July episode of the All In For Citrus podcast. Citrus Research and Education Center Director Michael Rogers begins the episode with an overview of the seminars at this year’s Citrus Expo. He said his University of Florida Institute of Food and Agricultural …
Morocco Developing New Citrus Varieties
The National Institute for Agricultural Research (INRA) in Morocco is developing new early- and late-season harvest varieties to support a prolonged production season, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reported. This will allow producers to supply markets for longer periods of time and help Morocco remain competitive in international markets. In May, INRA launched a call …
Citrus Industry Magazine CEU 2020 Article #2
Avoiding harmful effects of pesticides By Juanita Popenoe Editor’s note: This article grants one continuing education unit (CEU) in the Core category toward the renewal of a Florida Department of Agriculture and Consumer Services restricted-use pesticide license when the accompanying test is submitted and approved. Pesticides can have harmful effects on people, animals and the environment. The government tests and …
UF Researchers Study Drone Use in Citrus
In the latest All In For Citrus podcast, Yiannis Ampatzidis, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor of agricultural and biological engineering, discusses new studies in drone technology applications for agriculture. Citrus growers can currently use drones to find out how many trees live in their groves, and they soon may be able to detect …
Drone Images Can Accurately Find, Count Citrus Trees
By using drone technology, Florida citrus growers can find out how many trees live in their groves and, eventually, they may detect the health status of the trees, a new University of Florida study shows. Imaging from unmanned aerial vehicles (UAVs) can accurately detect and count citrus trees and spaces where trees have had to be removed in groves, said …
Update on Thermotherapy Research
Column sponsored by the Citrus Research and Development Foundation As early as 1965, high-temperature treatments were shown to reduce HLB bacterial infection without killing the tree. Trials [Ehsani, University of Florida/Institute of Food and Agricultural Sciences (UF/IFAS)] using portable, semi-transparent, plastic houses were placed over trees, achieved temperatures of above 120 F for several hours over several days, and reduced …
Farm Labor Supervisor Training Coming in Fall
Carlene Thissen, project coordinator for farm labor supervisor training at the Southwest Florida Research and Education Center in Immokalee, discusses the training scheduled for this fall. “We have for the last five years offered training to farm labor supervisors,” Thissen says. “So basically the way we say it, regarding farm workers, we make their bosses better. And we make sure …
Finding Opportunities for Native Australian Citrus
Growing global production of citrus offers opportunities for Australia’s little-known six native species, according to a University of Queensland researcher. Doctoral candidate Joel Johnson at the Queensland Alliance for Agriculture and Food Innovation (QAAFI) is investigating the chemical composition and nutritional potential of those indigenous citrus species. They are: C. australasica (Australian finger lime), C. australis (round lime), C. garrawayi …
Two Practices to Improve Citrus Production
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers recently explained the benefits of raised bed planting and mulching to improve citrus tree establishment, productivity and resilience against environmental stress. Assistant Professor Muhmmad Shahid and Postdoc Scholar Shahid Iqbal, both of the North Florida Research and Education Center, and Associate Professor Davie Kadyampakeni of the Citrus Research and …
Proper Site Selection Essential for Phytophthora Prevention
Vulnerability of citrus trees to phytophthora root rot is a concern for cold-hardy growers. But there are precautions that producers can implement that will guard against infection buildup. One of those precautions includes site selection and not planting trees in poorly drained locations, according to Jonathan Oliver, University of Georgia assistant professor and small fruits pathologist. “Site prep is really …
Boost Citrus Health and Yield With Silicon
By Muhammad A. Shahid and KeAndre Leaks Silicon (Si) is an emerging powerhouse in citrus production, offering wide-ranging benefits for plant health, fruit quality and stress resilience. While not traditionally considered essential, silicon was officially recognized as a “plant beneficial substance” in 2012 by the American Association of Plant Food Control Officials. Its inclusion as an approved input by the …
Snow and Sub-Freezing Temperatures Hit Cold-Hardy Citrus
Citrus in the cold-hardy region of South Georgia, South Alabama and North Florida encountered below-freezing temperatures and historic snowfall all week. Growers are now taking stock of their groves, surveying damage and preparing for what to do next, which includes managing phytophthora. “Most all of the crop was in, so there was very little exposure there. There’s a little bit …
President Declares Farm Safety and Health Week
President Joe Biden declared Sept. 15 to Sept. 21 as National Farm Safety and Health Week. “I call upon the people of the United States — including America’s farmers, ranchers and agriculture-related institutions, organizations and businesses — to reaffirm a dedication to farm safety and health,” the President stated. “I also urge all Americans to express appreciation and gratitude to our farmers, farmworkers …
Using Herbicides in Hot Weather
By Ramdas Kanissery Managing weeds during the summer is crucial for Florida citrus. However, due to the high temperatures typical of Florida’s summer months, several factors must be considered when using herbicides in citrus groves during hot weather. INCREASE EFFECTIVENESS High heat and drought stress can slow plant growth and affect how herbicides move or translocate in weeds. When temperatures …
How to Prevent Fruit Splitting
By Amir Rezazadeh Citrus fruit splitting is an important problem for growers, causing frustration and economic losses. This phenomenon occurs when the rinds of citrus fruits crack open, exposing the inner pulp. Understanding the reasons behind citrus fruit splitting is crucial for growers to implement effective preventive measures. IRRIGATION PRACTICES Inconsistent watering regimes, particularly irregular watering followed by heavy irrigation, …



























