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Plutella xylostella
Diamond-back (Linnaeus, 1758)
464 / 18.001
Photo © Rob Lee,  ochreous form comparison 14/05/09

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Similar Norfolk Species
Grey-streaked Diamond-back
Plutella porrectella
Wingspan: 12-17mm
Flight: Two (Three) Generations. May - Sept
Foodplant:   Brassica spp. or Cruciferae.
Nat Status: Migrant
Verification Grade:  Adult: 1
Norfolk Status
Common immigrant from mainland Europe.

Can be found in any habitat under favourable conditions with many thousands recorded at coastal sites.

Whole fields of crops were destroyed in a great immigration of 1891 [MBGBI 3:99]

A vast migrant swarm was recorded nationally in 2016, with several million estimated in Norfolk the first week of June.

Video by Ryan Irvine - Hemsby 01/06/16

Recorded in 66 (96%) of 69 10k Squares.
First Recorded in 1874.
Last Recorded in 2019.

Latest 5 Records
Date#VC10k Area
21/12/2019128TF63 - Snettisham/Dersingham
28/11/2019127TG10 - Wymondham/Cringleford
26/11/2019227TG13 - Baconsthorpe
26/11/2019127TG10 - Wymondham/Cringleford
26/11/2019127TG14 - Sheringham
Further info: Plutella xylostella
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