fusarium wilt vs wilt disease

fusarium wilt and wilt disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
fusarium wilt	Yes	No	No	No
wilt disease	Yes	No	No	No

As nouns, wilt disease is a hypernym of fusarium wilt; that is, wilt disease is a word with a broader meaning than fusarium wilt:

fusarium wilt: wilt caused by fungi of the genus Fusarium
wilt disease: any plant disease characterized by drooping and shriveling; usually caused by parasites attacking the roots

Other hypernyms of fusarium wilt include wilt.

fusarium wilt (noun)	wilt disease (noun)
wilt caused by fungi of the genus Fusarium	any plant disease characterized by drooping and shriveling; usually caused by parasites attacking the roots