I think all the stuff about endophytes is in a way hogwash. Yeah it supposedly makes cattle not perform as they should and want to lay around in the shade in hot weather. I have even heard it causes calving problems. I have never had calving problems. That is why I think for one endophytes causing that is hog wash. Secondly let me put it to you this way. If it was 95 degrees and the humidity was like at 70 percent and you were outside constantly wouldnt you want to lay around in the shade and stay cool? I know I would. In the summer when it is that hot i have no trouble getting my cows up I simply call them and they come running. I dont buy the endophyte causing problems at all. In fact endophytes in the fescue is what helps the grass resist drought and cold weather better than it would if it did not have the endophyte.