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New Zealand Plant Protection 69 (2016): 320

Virus surveys of process vegetable crops: pea, beetroot and dwarf bean

J.D. Fletcher and H. Ziebell

ABSTRACT

In a survey of 14 processing crops and 7 pea seed crops throughout Canterbury, Cucumber mosaic virus (CMV) was the most widespread with crop incidences of up to 20%, Alfalfa mosaic virus (AMV) up to 11%, Pea seed-borne mosaic virus (PSbMV) up to 9%, Soybean dwarf virus (SDV) up to 2%, Turnip yellows virus (TuYV) up to 2% and Bean yellow mosaic virus (BYMV) up to 3.5%. Red clover vein mosaic virus (RCVMV) was detected in peas for the first time in New Zealand, with incidences of up to 3.5%. Pea necrotic yellow dwarf virus (PNYDV), Faba bean necrotic yellows virus (FBNYV) and Broad bean stain virus (BBSV) were not detected. In a survey of 8 beetroot crops TuYV was detected in Auckland at 1% incidence but not in Hawke's Bay. Beet mosaic virus was detected at 1% incidence in both regions. Fungal leaf spotting pathogens appear a greater concern in beetroot. In 12 dwarf bean processing crops throughout Canterbury virus was only detected in early sown crops. AMV and RCVMV were most widespread with incidences of up to 9%; CMV with up to 7% incidence; then BYMV, TuYV and SDV each with 1% incidence. No Bean common mosaic virus was detected.

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