Clover yellow vein virus in white clover (Trifolium repens) and sweet pea (Lathyrus odoratus) in the North Island of New Zealand

Abstract

Clover yellow vein virus (CYVV) was detected in up to 77% of white clover (Trifolium repens L.) plants on 25 of 58 farms throughout the North Island of New Zealand. The virus was also detected in up to 10% of commercially grown sweet pea (Lathyrus odoratus L.) plants, in which it caused leaf and stem necrosis and severe flower breaking. CYVV isolates from New Zealand were found to be closely related to a Canadian isolate by enzymelinked immunosorbent assay but were serologically distinct from 2 isolates of bean yellow mosaic virus and 1 of pea mosaic virus.

Keywords:

• clover yellow vein virus
• bean yellow mosaic virus
• Trifolium repens
• Lathyrus odoratus
• Lupinus luteus
• serological tests