First plant parasite nematode discovered was -

Correct option is C

· Correct answer: (c) Anguina
· Anguina is the first plant parasitic nematode that was discovered. It affects grasses, particularly wheat.
Other options:
· (a) Meloidogyne: A well-known genus, but not the first discovered.
· (b) Heterodera: Another plant parasitic nematode but not the first discovered.
· (d) Globodera: Not the first, although it causes potato cyst nematode disease.