Farmers fall prey to rice rustlers as price of staple crop rocketsFarmers fall prey to rice rustlers as price of staple crop rockets

Knee-deep in muddy water, her face smeared with sandalwood paste and a broad-brimmed hat for protection against the broiling sun, Samniang Ketia grins broadly at her good fortune to be in the rice growing business as she replants shoots for the next harvest two months off.

The 37-year-old, who leases a small plot of land in Samblong, central Thailand, knows the price of rice has rocketed - in some cases nearly doubling in three months - and that she is about to reap the benefit when she sells what her family does not eat.

But the price rises have a downside and spawned a new phenomenon: rice rustling. One night, one of Samniang's neighbour's fields was stripped as it was about to be harvested. Local police have now banned harvesting machines from the roads at night while on the northern plains farmers are camping in their fields, shotguns at the ready.

"I've never heard of it happening before, that people have stolen rice," said Lung Choop, 68, who grows rice on his smallholding. "But it's happening now because rice is so expensive. I guess I'll have to guard my own distant fields when they're ready."

Across Asia the suddenly stratospheric rice prices have prompted countries to ban exports amid fears that shortages could provoke food riots.

While prices of wheat, corn and other agricultural commodities have surged since the end of 2006, partly because of extra demand for biofuels to offset rising oil prices, rice held fairly steady.

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