DienaBērtuļa Bartholomew 's Day , to be celebrated annually 24. August was seen as a lamb slaughter day , while the first fruits of the harvest ripe that day bore the sacrifice to God . . Since Bartholomew is the time , which was considered the end of summer honey , that day went Bite . The Latvians were convinced that sow rye either three days before or three days after Bartholomew , while flax was able to pick the very next day after this feast . Beliefs : What time Bartholomew, the entire autumn . Bartholomew is the commencement of mushroom time . If the swallows disappear before Bartholomew, before Michaelmas will provide . Bartholomew day can not use the water troughs for livestock nebizo . If Bartholomew rain raining day , the fall is much fire . .