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Plutella xylostella
Diamond-back (Linnaeus, 1758)
Plutellidae
464 / 18.001
Photo © Rob Lee,  MV Trap Cromer

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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 65 (94%) of 69 10k Squares.
First Recorded in 1874.
Last Recorded in 2020.

Latest 5 Records
Date#VC10k Area
22/09/2020128TF63 - Snettisham/Dersingham
22/09/2020228TF84 - Burnham/Holkham
22/09/2020127TG20 - Norwich
22/09/2020227TG20 - Norwich
22/09/2020127TG30 - Brundall/Cantley
Further info: Plutella xylostella
 
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