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Hydranga scale

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Question from Alison Goodyer


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The bug killer does not seem to be killing off the scale on the hydranga what should we do? We dont want it to effect the rest of the hydrangas

  • Views: 862
  • Replies: 1
  • Posted: Wed. 28th July 2010 17:40

Re: Hydranga scale

Reply from Katy Elton

Hi Alison,

The best time to attack these is immediately on hatching (nymphs will emerge from these scales). Whilst still cocooned inside the scales they are fairly protected from anything you spray them with, so this is likely to be why your efforts have had little effect up until now. The hatching is typically midsummer, so should be happening anytime soon – keep your eye on things. A soapy spray should do the trick once the time comes.

See the Shoot page on hydrangea scale for more information: http://www.shootgardening.co.uk/plant/pest/hydrangea-scale

Hope this helps

  • Posted: Thu. 29th July 2010 14:23