So much rain from Jeanne fell on the cane fields that the harvest, which usually begins in mid-October, will have to be postponed, said Judy Sanchez, spokeswoman for Clewiston-based U.S. Sugar Corp., one of Florida's three chief sugar producers.

"We are literally under water. We have some fields only accessible by airboat at this point," Sanchez said. "It will be days, if not weeks, before the fields dry out."

Three weeks after Hurricane Frances dealt a body blow to Florida agriculture, Hurricane Jeanne brought another, sparing few industries, from citrus to sugar cane, palm trees to milk cows.

On Monday, many agricultural areas looked more like swamps than farms as their owners and workers waited for water to drain or tried to pump it from nurseries and groves. Damage assessments for Jeanne have not been completed yet, but farmers said the ruin was widespread.

Florida agriculture suffered more than $2 billion in damage from Frances, which hit the state over the Labor Day weekend, and Hurricane Charley, which struck the southwest coast Aug. 13.

Here is a brief look from some of the state's major agricultural sectors:

• Sugar cane: So much rain from Jeanne fell on the cane fields that the harvest, which usually begins in mid-October, will have to be postponed, said Judy Sanchez, spokeswoman for Clewiston-based U.S. Sugar Corp., one of Florida's three chief sugar producers.

"We are literally under water. We have some fields only accessible by airboat at this point," Sanchez said. "It will be days, if not weeks, before the fields dry out."

Barbara Miedema, a spokeswoman for the Sugar Cane Growers Cooperative of Florida in Belle Glade, said Jeanne caused more damage to the cane plants and mill buildings, which already had been punished by Frances.

• Citrus: Some citrus growers in Indian River, St. Lucie and Martin counties evacuated and were returning to their homes Monday but had reports that their groves were flooded and packing houses damaged.

"The water table was the issue this time for the Indian River area and for the groves," said Doug Bournique, executive vice president of the Indian River Citrus League in Vero Beach. "Getting the water off is going to be a bigger problem. The trees' root systems can suffocate from lack of oxygen."

• Nurseries: Plant growers in Palm Beach County and the Treasure Coast were feeling like Richard Kern, owner of Southeast Growers, a tree nursery with locations in Wellington and Pahokee:

"Frances knocked us down. Jeanne finished us off," Kern said. "The wind was much stronger. After Frances, our dollar loss was $3.5 million. Now it's $5.5 million."

Barbara Lee, co-owner of Green Giant Foliage in Hobe Sound, told a similar story.

"Frances took down 30 acres of shade houses, and 90 percent of the plants were ruined," Lee said. "Now they are under water, and that's the rest of them."

The shade houses that survived Frances at Palm City Palms & Tropical did not survive Jeanne, said co-owner Susan Frostrom.

"The new work is all gone," she said. "It's pretty devastating."

• Vegetables: At least one vegetable grower said his fall sweet-corn crop will be a fourth of what it would have been, having lost 200 acres of freshly planted corn and beans to flooding.

In addition, said Steve Williams, president of Knight Management in Belle Glade, the harvest, set for around Nov. 10, will have to be delayed until December.

Belle Glade grower Rick Roth said his bean, corn and lettuce crops have been pushed back as well.

"Whatever we had planted, we lost," he said. "We won't have crop to harvest for the first three weeks of the season."

• Dairy: Joe Wright, a Hardee County dairyman who is president of marketer Southeast Milk, said dairy-rich Okeechobee County was harder hit by Jeanne than by Frances. "The damage was already there. Jeanne just finished the job," Wright said. "I fear the rebuilding will take much longer. After three storms, where do you start?"