Dr. Rhuanito "Johnny" Soranz Ferrarezi

Assistant Professor of Citrus Horticulture

Dr. Rhuanito “Johnny” Soranz Ferrarezi leads IRREC’s citrus horticulture research and extension work in the world’s premier grapefruit production region.

Dr. Ferrarezi brings more than 10 years of experience to his position, as part of IRREC’s team to assist growers as they manage citrus greening, or Huanglongbing (HLB), the industry’s most formidable pathogen. 

Since 1947, IRREC’s most noteworthy contributions have been the development of management programs for canker, citrus tristeza, postharvest techniques, and the sustainability programs for environmental protection.

Dr. Ferrarezi’s water systems automation and plant nutrition expertise will help growers produce healthful fruit that will resist disease and infection. His research with low-cost automation in citrus research groves is sought-after by growers and his peers. Dr. Ferrarezi identified an irrigation smart-device that costs growers a fraction of the standard equipment being used in most groves, and is more efficient in dispensing water to commercial crops. 

Ferrarezi’is working along with a team of scientists to fight citrus greening with an integrated solution that will involve research scientists from multiple disciplines. Dr. Ferrarezi’s research is conducted in IRREC’s citrus experiment groves and greenhouses.

Dr. Ferrarezi has worked for the University of the Virgin Islands Agricultural Experiment Station at Kingshill, VI, where he developed a Horticulture program to assess cultivar performance in tropical climates to increase food security for the local farmers, and an Aquaculture program focused on the UVI commercial aquaponics system. Other positions he held were with private agriscience companies such as Alellyx Applied Genomics, a Monsanto Co. in Brazil; and, AgriSus Foundation for Sustainable Agriculture, in Sao Paulo, Brazil, one of the world’s leading agricultural regions.

His work was recognized with The Alex Laurie Award, presented to “authors of the most significant applied floriculture research paper published in any of the three refereed American Society for Horticultural Science publications during a calendar year.” He was also honored with a CIGR Award and Armand Blanc Prize.  


2019 Florida Citrus Show



Laboratory Personnel

Citrus Horticulture Programs

Citrus Horticulture Lab Photography Contest

Rhuanito Soranz "Johnny" Ferrarezi, Assistant Professor of Citrus Horticulture

Dr. Rhuanito "Johnny" Soranz Ferrarezi, on the far right, along with members of the Ferrarezi Citrus Horticulture Laboratory