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UF IFAS Gardening Solutions - CITRUS

Nearly all homeowners in Florida have the opportunity to pick citrus from their own trees. Of course, what you can grow depends on where in Florida you live. Citrus is a subtropical fruit and is limited to parts of Florida that don't regularly experience... [READ MORE]

Citrus Greening (Huanglongbing)

Huanglongbing (HLB; citrus greening) is thought to be caused by the bacterium, Candidatus Liberibacter asiaticus. HLB has seriously affected citrus production in a number of countries in Asia, Africa, the Indian subcontinent and the Arabian Peninsula, and was discovered in July 2004 in Brazil. Wherever the disease has appeared, citrus production has been compromised with the loss of millions of trees. HLB has not been reported... [READ MORE]

Nutrient Deficiencies Compared to Citrus Greening

Citrus greening symptoms can easily be mistaken for a nutrient deficiency. Nutrient deficiencies are often symmetrical on each side of the vein whereas, citrus greening is asymmetrical. Below are the symptoms of each the seventeen nutrients needed by citrus trees... [READ MORE]

Florida Citrus Pest Management Guide: Asian Citrus Psyllid and Citrus Leafminer

Use of insecticides to control the psyllid vector is a major component of greening management strategies in Florida and elsewhere. There is good evidence that reducing psyllid populations via insecticide application not only slows the rate of HLB spread but also reduces severity of the disease once established. However, it should be noted that elimination of HLB from an area has never been successful and would not be possible with vector [READ MORE]

Scouting for Citrus Greening

Yellow veins, vein corking, and green islands are not diagnostic alone. These symptoms should be coupled with blotchy mottle symptoms and a positive PCR to determine... [READ MORE]

Dooryard Citrus Production: Citrus Diseases Exotic to Florida

Florida is world famous for its citrus production, and many homeowners in Florida enjoy growing citrus in their yards. Unfortunately, citrus is susceptible to a large number of diseases caused by plant pathogens, and losses due to plant diseases can be severe. Major citrus diseases that are present in Florida include... [READ MORE]


“As part of its core mission, UF/IFAS Extension provides unbiased, research-based educational outreach to homeowners that guides them in selecting proper citrus for their yards, successfully growing healthy, productive trees and protecting their landscaping investments. The following link is a one stop shop for resources from UF/IFAS Extension that provide useful information on plant selection, nutrients and water requirements, disease identification, and economically viable cultural and disease management practices.”