Answer:
Fusarium fungus
Step-by-step explanation:
Complete question -
In the 1950s, a fungus nearly wiped out an entire species of bananas that were produced through cloning. Name the fungus.
Solution
Panama disease or banana wilt was caused by fungus Fusarium fungus that led to wiping out of an entire species of bananas that were produced through cloning
Fusarium fungus can grow in soil and attack the root of the plant. This fungus thus produce spores and make the land unfit for cultivation as it can survive for year. It does not spare even the resistant crop as it mutates and produces new strain which is resistant to the previous version