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Bug Infestation on Wisteria - what is it!

Can anyone advise on what these bugs are?  Some branches are totally covered. They have recently infested our wisteria - almost on every branch.  We have 2 large plants (one white and one blue) and both are affected.  They vary in size from 1mm in diameter to around 5mm.

Any help on what these creatures are and what we can do about them.

Thanks in advance.



  • ObelixxObelixx Vendée, Western FrancePosts: 27,611
    Looks like wisteria scale.  This article on the RHS website has info and solutions -

    "We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
  • nigel.wynne63nigel.wynne63 Posts: 2
    Many thanks for your reply.  It looks to be Brown Scale from the description on your link. 
    I had better get to work!
  • wild edgeswild edges The north west of south east WalesPosts: 7,544
    The RHS says "Brown scale and nut scale are generally not damaging on wisteria". I'd be tempted to leave it up to biological control if that was the case.
    A great library has something in it to offend everybody.
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