Fusarium Wilt vs Bacterial Wilt — Know the Difference Before It’s Too Late Both Fusarium wilt and Bacterial wilt make plants look weak and dry, but they are not the same disease. Many farmers confuse the two, which leads to using the wrong control methods. What Causes Them ➡️Fusarium wilt is caused by a fungus called Fusarium oxysporum. ➡️Bacterial wilt is caused by a bacterium called Ralstonia solanacearum. 👉 The fungus produces spores that live in the soil for years. 👉 The bacteria love warm