Citrus Research and Development Foundation (CRDF) Chief Operating Officer Rick Dantzler on Feb. 23 detailed CRDF spending on efforts to solve HLB. According to Dantzler, the Florida-based organization spent $140.7 million between its formation in 2009 and 2020. The vast majority of CRDF’s focus has been on HLB. Dantzler’s report came moments after University of Florida (UF) Institute of Food …
Improving Root Health in the Era of HLB
Developing and maintaining a healthy root system is crucial for establishment and long-term productivity of citrus trees. The presence of HLB can greatly complicate citrus root-health management. The infection causes severe damage to fibrous roots that amplify the detrimental effects caused by other root pests and pathogens, such as phytophthora root rot. Due to HLB’s widespread presence throughout Florida, root-health …
PIECES OF THE PAST: February Was Eat More Citrus Month
By Brenda Eubanks Burnette February has always been a big month for the Florida citrus industry — so much so that the Florida Citrus Exposition was created in 1923 to help promote the annual crop. It took place every February and incorporated numerous competitions and events over 11 days. In 1954, the exposition included an opening-day parade; Canners and Allied …
Protecting Young Citrus Trees
Newly planted citrus trees and resets require more care and attention than established trees to ensure establishment and proper growth. Many growers use tree wraps to protect the trunks of young trees. These protective wraps offer a layer of protection to the bark underneath and can be used during the winter season or year-round. Jake Price, University of Georgia Extension …
Sneak Peek: March 2021 Citrus Industry
As growers strive for sustainability in the HLB era, biological controls are playing an increasingly important role in citrus production. The March issue of Citrus Industry magazine features some of the latest biological control research. An article by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Jawwad Qureshi looks at three types of biological control agents used …
Minimize Blemishes on Tangerines and Grapefruit
Megan Dewdney Since tangerines and grapefruit they are eaten fresh, a blemish-free peel is highly desired. Two diseases that frequently mar the peels of tangerines, and occasionally grapefruit, are Alternaria brown spot (ABS) and citrus scab. Both diseases cause symptoms on leaves and fruit. ALTERNARIA BROWN SPOTThe early foliar symptoms of ABS are small yellow flecks that quickly become larger …
Q&A With FDOC’s Shannon Shepp
Shannon Shepp, executive director of the Florida Department of Citrus (FDOC), answers several questions regarding her agency’s work, including efforts to market orange juice (OJ) and other Florida citrus products. She fields additional questions of interest to the citrus industry, including about demand for citrus products, foreign OJ imports, and industry challenges and opportunities. The FDOC is governed by the …
All In For Citrus Podcast, February 2021
February’s All In For Citrus podcast brings good news about a new faculty position, an upcoming in-person meeting and Australian finger limes projects to battle HLB and keep growers profitable. After more than a year in the making, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) plans to add a new faculty member in citrus horticulture. Citrus …
New Solution for Fruit Drop?
Fruit left on the ground is a waste for growers and consumers alike, and Florida’s citrus industry certainly cannot afford to leave any fruit behind. Citrus fruit drop before harvest has been particularly challenging during the 2020-21 Florida growing season. That is why Fernando Alferez, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus horticulturist, is researching strategies …
Citrus Greening Solutions: How Long Will It Take?
It may not be the answer Florida citrus growers want to hear, but it is likely to be several years before a citrus greening remedy is put in place to combat the destructive disease. University of Florida professor Fred Gmitter shared his assessment on possible citrus greening solutions during a recent American Seed Trade Association webinar. “We learn a lot …
FDOC on Global Marketing Efforts
A 25 percent tariff placed on Florida grapefruit in Europe has had some impact on retail supply, Florida Department of Citrus (FDOC) Director of Global Marketing Samantha Lane told the Florida Citrus Commission (FCC) in early February. The FCC is the FDOC’s governing board. Lane said the FDOC worked with the European industry to ensure Florida-loyal retailers continued to have …
Thrips Management Tips
As Florida growers prepare for the spring bloom, it is time to think about a pest that thrives on citrus flowers: thrips. Most notably, flower thrips are known to cause damage to developing flowers in sweet orange. Feeding damage can range from negligible to causing abortion of the flower or developing fruitlet. This pest is particularly challenging because it migrates …
Stem Pitting Disease Caused by Citrus Tristeza Virus
By Amit Levy, Peggy Sieburth and Ozgur Batuman When we hear or read about citrus tristeza virus (CTV), we usually think about the decline of sweet orange or grapefruit trees on sour orange rootstocks. However, there are other diseases caused by different isolates of the virus. One of these diseases is stem pitting, mostly caused by the VT isolate of …
Ag Workers Among Those Most at Risk to COVID-19 Death
A new study from the Centers for Disease Control and Prevention found that food-service, agricultural and construction workers were among the most at-risk for dying from exposure to COVID-19. The study points out high-density workplaces in any industry are possibly high risk. The close proximity of employees in high-density workplaces creates a high risk for transmission of coronavirus disease. The …
Nutrition Management Program Yields Results
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have found that following nutrition and irrigation guidelines designed for a specific grove will help growers promote tree health and produce high-quality citrus. Last year, UF/IFAS scientists offered Florida growers a unique nutritional counseling program, commonly referred to as the nutrition box program. It provides free soil and leaf …
Shade for HLB Trees Means More Yield
Like all photosynthetic plants, citrus trees need light to produce food. But in Florida, groves located in full sun sometimes receive more light energy than they can make use of, causing photosynthesis to slow down. When this happens, the trees invest their energy in protecting their leaves from sun damage, meaning the trees have less food available for fruit protection. …
Orange Production to See Global Increase
Global orange production for 2020–21 is forecast to rise 3.6 million metric tons from the previous year to 49.4 million metric tons. Favorable weather leading to larger crops in Brazil and Mexico will offset declines in Turkey and the United States, according to the U.S. Department of Agriculture’s Foreign Agricultural Service. Consequently, consumption, processing fruit and fresh exports are also …
Alico: Increased Citrus Prices Expected to Continue
Alico, Inc., one of Florida’s largest citrus producers, announced financial results for the fiscal quarter ending Dec. 31. Some highlights regarding the company’s citrus operation follow. For the quarter, Alico Citrus harvested approximately 0.8 million boxes of fruit, a decrease of 14.6 percent from the first quarter of the prior fiscal year. The decrease was principally related to there being …
UF/IFAS VP Scott Angle on HLB Efforts
Florida’s citrus growers are counting on research to help sustain what’s left of an industry decimated by huanglongbing (HLB). The disease remains a focal point of research at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Scott Angle, vice president for agriculture and natural resources at UF/IFAS, understands the ramifications if improved HLB management options aren’t available …
Scout Early Bloom for PFD
By Andre B. Gama and Megan M. Dewdney Postbloom fruit drop (PFD) of citrus is a disease caused mostly by the fungus Colletotrichum acutatum. This fungus survives by producing resting structures on leaves and stems. When flowers start to appear in groves, these resting structures produce spores that can cause PFD. However, the fungus requires specific weather conditions to be …