Nematodes transmit only…

✅Explanation:
Plant-parasitic nematodes are known to transmit only RNA viruses. These viruses have RNA as their genetic material instead of DNA. There are several types of RNA viruses transmitted by nematodes, including tobraviruses (e.g., Tobacco rattle virus), nepoviruses (e.g., Grapevine fanleaf virus), and trichoviruses.