Breaking News-RTRS-UPDATE 2-Argentine farmers call new anti-gov't strike

BUENOS AIRES, Aug 25 (Reuters) - Argentine farmers will launch a seven-day strike starting on Friday that will freeze grain and beef sales from one of the world's biggest suppliers of corn, beef and soybeans, farm leaders said on Tuesday.
The strike, aimed at protesting the government's farm policy, revives a long-running dispute that has rattled local financial markets and tested President Cristina Fernandez over the past two years.