Citrus Industry, UC Riverside Team Up to Fight Citrus Killer

Effort will result in construction of new building that will allow scientists to expand citrus greening disease research

Citrus industry, university and government leaders stand in a row.

Citrus industry, university and government leaders gathered at UC Riverside Monday, June 6 to announce a joint effort to fight citrus greening disease. Photo credit: Carrie Rosema

RIVERSIDE, Calif. ( — The University of California, Riverside and the California Citrus Research Foundation launched an effort Monday, June 6 that will result in construction of a new facility to be used by researchers to fight a disease devastating the citrus industry.

The research partnership aims to protect California’s $3.3 billion citrus industry from Huanglongbing, also known as citrus greening disease. Huanglongbing is a bacterial plant disease fatal to citrus trees. The disease has devastated citrus trees in Asia, South America and Florida. More recently it has been found in Texas and California.

The partnership will result in the construction of a biosafety-level 3 plant facility in Riverside, about two miles north of UC Riverside.

The biosafety-level 3 plant facility will allow researchers, including many from UC Riverside who are experts on citrus pests, diseases and breeding, to conduct work with plant pathogens that previously couldn’t be done in Southern California. (There is only one other such facility in California – at UC Davis.)

An image of the planned biosafety-level 3 plant facility in Riverside.

An image of the planned biosafety-level 3 plant facility in Riverside.

The building, which will be located at the southeast corner of Marlborough and Rustin avenues, will be built and owned by the California Citrus Research Foundation, which is funded by citrus growers.

The partnership was launched June 6 with an event called “Save R’ Citrus” at the UC Riverside Citrus Variety Collection. The event, attended by about 100 people, included tasting fruit from the collection and a tour of the collection.

Several university, government and citrus industry leaders spoke at the event, which was emceed by Michael Pazzani, UC Riverside’s vice chancellor for research and economic development. Pazzani said conversations with UC Riverside citrus researchers led to the idea for this building.

“I’m proud to say that there is a plan in place so there are no longer any barriers to do the research and testing we’d like to do on citrus diseases,” Pazzani said.

People standing around a citrus tree

Event participants tour the UC Riverside Citrus Variety Collection. Photo Credit: Carrie Rosema

Kim Wilcox, chancellor of the UC Riverside, spoke about the establishment in 1907 of the Citrus Experiment Station in Riverside. That research station eventually grew into UC Riverside. He noted that the research station received a boost after a 1913 freeze that devastated the citrus industry.

“Now, unfortunately, 100 years later, we have a different kind of natural threat. It’s not weather in this case but an insect, Wilcox said. “And again the university, the federal government and private partners have come together and said ‘We can address this.’”

After Wilcox spoke, Joel Nelsen, president of California Citrus Mutual, introduced Russ Hanlin, CEO of Sunkist, Jim Marderosian, CEO of Bee Sweet Citrus, and John Demshki, president of the Corona-College Heights Orange & Lemon Association, all of whom are members of the California Citrus Research Foundation.

Nelsen also outlined the devastation citrus greening disease has caused in Florida, Brazil and Mexico.

“That’s why it’s so important we forge this partnership today,” Nelsen said. “That’s why it’s so important that we work together on the federal level, the university level, the state level and within the industry to stop this insidious disease.”

Congressman Ken Calvert of Corona called the building of the containment facility a long-term investment that will help the fight against citrus greening and other agricultural pests.

“There is going to be another insect down the road,” Calvert said. “This isn’t the last one. The world is a small place. So, we need these containment facilities to fight these future onslaughts.”

Congressman Mark Takano of Riverside spoke about his grandfather farming citrus in the Coachella Valley and echoed Calvert’s comments about the containment facility.

“We’ve got to do our utmost to staunch this disease,” Takano said.

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