Medieval Pesticides
There is no way around it; bugs were a serious problem in Medieval times. People made their own homemade pesticides to try to kill and deter bugs. Some of the concoctions included herbs and flowers. Others worked as detectors and traps. People would put a sheet of paper under a bed to help spot fleas and bed bugs quickly. A good remedy for fleas was considered a candle inserted into a slice of bread covered in glue. This supposedly captured the fleas for disposal.