雄黄能杀蛆: 雄黄末(即各地端午节用以洒地的普通粗制雄黄)二至四两,锯屑一斤至一斤半。将这两样东西充分拌和,佈撒于粪便的表面,因蛆虫不时上下鑽动,都能受到雄黄的毒性作用而被杀死。按:雄黄为三硫化二砷,因为雄黄比重较大所以用大量锯屑作填充料,既可扩大雄黄与蛆虫的接触面;又可避免其因体重而下沉的缺点。 Realgar can kill crickets: The end of realgar (that is, the common crude realgars used to sprinkle the ground around the Dragon Boat Festival) is two to four, and the sawdust is one pound to half a catty. Mixing these two things well and spreading it on the surface of the faeces, the locusts can be killed by the toxic effects of realgar as they move up and down. According to: realgar is arsenic trisulfide, because the proportion of realgar is larger, so a lot of sawdust as filler, can expand the contact surface between realgar and aphids; but also to avoid the disadvantage of sinking due to weight.