Dutch elm disease, which has killed millions of elm trees, is caused by a type of SAC fungus.
Mostly all the fungi belong to the Phylum Ascomycota kingdom. These fungi are characterized by the formation of a sac-like structure that contains haploid ascospores. These fungi are harmful for both agriculture and medicine purposes.
Answer:
Dutch elm disease, which has killed millions of elm trees, is caused by a type of sac fungus.