Dutch growers fight hosta virus X

Dutch growers, exporters and an independent inspection service are working to resolve problems related to hosta virus X (HVX), according to a report from Plant Publicity Holland.

Growers can now submit hosta stock to the inspection service, where it is specifically tested for the virus. The enzyme-linked immunosorbent assay (ELISA) test uses antibodies to seek out viruses and determine whether stock is infected with HVX. Exporters can ask for test results to ensure healthy material is shipped.

“This voluntary certification process is now core to Holland’s hosta production and ensures that the demands of the North American marketplace for high-quality plant material are being met,” said Hen Westerhof, chairman of Anthos, the Royal Dutch Wholesalers Association for Dutch flower bulbs and nursery stock.

HVX causes leaf mottling, stunting, twisting and puckering of leaves. Some varieties that have tested positive for HVX are ‘Birchwood Parky’s Gold,’ ‘Blue Cadet,’ ‘Gold Edger,’ ‘Golden Tiara,’ ‘Royal Standard,’ ‘Sun Power’ and ‘Undulata Albomarginata.’

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For more: Plant Publicity Holland, (905) 339-8529; www.perennialandnurserynews.com.