Published: Dec 09, 2010 12:59 AM EST
Updated: Dec 08, 2010 8:50 PM EST

NORTH FORT MYERS, Fla.- Farmer Mike Greenwell and his crew at 31 Produce haven't gotten much sleep since Monday. They've been covering up their crops and trying to salvage anything they can as frigid temperatures sweep through the area.

Greenwell says his farm lost 30 to 35% of its yield on some crops. Tomatoes, squash, and cucumbers were all damaged by the cold air. Now the workers will continue covering the fruits and vegetables, using every trick in the book. They're even lighting fires near some of the crops to keep the air warm.

"It's going to be rough looking, but hopefully we can save some crop off of it and we don't have 11 freezes like last year," said Greenwell.

Experts say last year's deep freeze cost farmers millions of dollars. And no one can afford a second year of bad luck.