From Danwei blog:
In China, you will see slogans every day and everywhere. Not only is this a tradition with a long history, it is a trend that has remained popular, particularly in the red and crazy 1950s – 1970s….
普及一胎，控制二胎，消灭三胎。
Popularize the first child, control the second child, exterminate the third child.
This is a slogan about family planning policy in China, which advocates one child per family.谁不实行计划生育，就叫他家破人亡。
Whoever does not follow family planning will have his household ruined and his family perish….[Full Text]
– Chinese source Absolutely hilarious rural slogans
– More slogans via CDT here and here
