Which is a virus vector (transmits) nematode?

✅Explanation:
Xiphinema index is a species of dagger nematode known to transmit plant viruses, specifically the Grapevine fanleaf virus (GFLV). Dagger nematodes have long, needle-like stylets (mouthparts) they use to pierce plant cells and feed on their contents. During feeding, they can acquire virus particles from infected plants and transmit them to healthy plants.