Pest & Disease Alert - Poinsettia suffer outbreaks of Bemisia and leaf spot

Leaf spot has been identified on poinsettia plants originating from Germany.

The Food & Environment Research Agency (Fera) discovered the pest on plants at a site in Lincolnshire on 21 October.

An outbreak  leaf spot was also identified on German Xanthomonas Axonopodis PV. Poinsettiacola in Cheshire and Wiltshire during August.

Traditionally Bemisia is regarded as the main threat to poinsettia.

An outbreak of Bemisia Tabaci was found on poinsettia in Hampshire on 18 October and with further outbreaks of Bemisia on poinsettia reported over the summer, although growers say the pest has been less of a problem this year.

For a copy of Fera's latest weekly Pest & Disease report click on the attachment below.

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