THOMPSONVILLE, Ill. (AP) - Southern Illinois cattle farmers say they're on the lookout for a fungus that can be fatal for cows. Ergot can infect the blossoms of grains and grasses, which are then consumed by livestock. A University of Illinois extension official tells WSIL-TV (http://bit.ly/135qPRi ) that the fungus typically grows when hot, humid weather follows wet-and-cool conditions. Thompsonville cattle farmer Tom Saxe says he's working to make sure grass in his pastures is cut to keep the fungus from spreading and causing problems for his animals. Ergot's blamed for the recent deaths of several Missouri cows. Still, even if cows come in contact with ergot, there's no threat to people. Saxe says the fungus doesn't affect milk or meat.