Which nematode attacks the ear head (flower part) of cereals?

✅Explanation:
Anguina tritici is a seed gall nematode that specifically targets the flower parts of cereal crops, particularly wheat. It induces the formation of galls (cockles) in place of normal grains in the wheat head. These galls contain thousands of juvenile nematodes that can survive for years in dry conditions and infect the next crop when sown.