Bacillus megatherium is a gram-positive bacterium and belongs to bacillus. It forms spores, which are 36 times more resistant to radiation than li. It is used industrially to produce glucose isomerase and is also a decomposer of organophosphorus, so it can be used in agriculture to produce phosphorus bacterial fertilizer. Application crops: ginger, orchids; Object of control: bacterial wilt of ginger, anthrax of orchid.