In order to exterminate his enemies, Mugabe must weaken them with hunger first. Then the thugs will have little trouble moving in and mopping up the opposition. The whole country will now starve.
Dead on, once the famine really gets going, the white farmers will be charged with sabotage, wrecking, spitting on the side walk, etc.
Any opposition members would do well to escape now, if it isn't already too late.