Tobacco farmers should not cultivate tobacco over the limit for the next agricultural season due to rising prices of tobacco this year, said J. Suresh Babu, chairman of the tobacco board on Tuesday here at Tangutur. Speaking to newsmen, he said that penalty on excess tobacco was diminished but as the election code was under force, it could only be implemented from the next month. Tobacco had a vast market in south India and tobacco growers were enjoying highest prices of Rs 99 per kg which was a record, he said.