How is wheat yellow mosaic virus transmitted to plants?

Wheat yellow mosaic virus is primarily transmitted by insects, specifically aphids, rather than fungi. Insects serve as vectors that carry the virus from infected to healthy plants as they feed on the sap. This method of transmission is common in many plant viruses where the virus can move from one host to another through the feeding activity of these insects.

Fungi, while they play significant roles in other plant diseases, typically do not transmit viruses. Likewise, nematodes are more often associated with soil-borne diseases and typically do not act as vectors for viral pathogens. Wind can facilitate the spread of some diseases through airborne spores or debris, but for wheat yellow mosaic virus, insect vectors are the primary mode of transmission. Therefore, the focus should be on the role of insects, particularly aphids, in the spread of this virus.