Ten years ago, growers harvested over 200 million boxes of citrus throughout Florida, but today that number is almost cut in half. So far, retail prices have not risen much because growers have absorbed the costs, but prices are expected to increase at some point at the end of this year.

Michael Sparks, CEO of the Florida Citrus Mutual in Lakeland, Fla., says that the entire industry is in a chokehold.

“To think that we would lose Florida citrus is almost unthinkable. At the end of the day, that's the battle we are battling," he said. "Nothing has been this devastating to the Florida citrus grower."

At the USDA research lab in Ft. Pierce, Fla., David Hall and a team of scientist are hard at work looking for a cure.

“We're working 10 to 12 hours a day, we're working weekends…right now, it's our life. It's the toughest problem that I've ever been exposed to and, I guess the jury is out as to how soon we can deliver a solution.”

But scientists have made some progress as they look for new ways to keep citrus trees alive, such as heating the trees under 112 degree tents and injecting solutions of antibiotics and insecticides into the tree trunks.

For now, says Michael Sparks, don't count out the citrus grower.

“They're a resilient bunch and I still expect them to win the day before it's over," he said.