JOHANNESBURG, South Africa — More than half of Zimbabwe’s remaining white farmers have had their land invaded by mobs loyal to President Mugabe since the bitterly disputed election, it emerged yesterday.

Of the roughly 200 white commercial farmers who still survive in Zimbabwe, about 120 have had their farms occupied, either in whole or in part. About 28 have been evicted, while the rest are either clinging on inside their homesteads or coming and going as the situation allows.

After spending days helping victims of the occupations, the president of the Commercial Farmers’ Union, Trevor Gifford, has been singled out himself. Supporters of Mr. Mugabe’s Zanu-PF party have invaded his sheep and cattle farm near Chipinge, 220 miles southeast of the capital, Harare. “My four top workers at the farm have been brutally beaten,” he said. “I can’t get on to the farm myself but they sent me messages. It is wild out there. They have been taking my animals and killing them and I have asked the police to attend.”

Stock theft carries a possible 20-year prison sentence, but the police response has been mixed, he said, and Zimbabwe’s abysmal phone networks are slowing the flow of information to the CFU.

Mr. Gifford said: “I know that farm workers of some of the farmers who have been chased off are refusing to go back to work. The mobs have told them not to work for white men, which is quite serious for those harvesting crops.”