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Do my bushes have powdery mildew? I live in the UK in the city centre and I have two small box bushes on my balcony. It doesn't sound like they should have it but I can't work out what else it could be.




Just wondering if it could be mealy bug though I've not seen it on box. - it doesn't look like powdery mildew. Look closely at the white stuff and see if some is just fluffy (eggs) and other parts are actually a white insect. If in doubt try squashing - if its a mealy bug it will stain red . They are easily controlled by painting with methylated spirit using eg a watercolour brush.

18 May, 2016


Don't think it's mildew, I've got it on my box as well, not sure what it is but it is sticky have not seen any creatures.

18 May, 2016


it looks like either wooly aphid or mealy bug hiding in the white fluff. pull a but off and tease it apart. if there is a small critter in it then that is what you have.
you can get sprays for both pests.

19 May, 2016


The creatures are not easy to see until you know what you're looking for. Try the meths first, its cheaper than bought insecticide. (Though it will take longer to apply than spraying...)

19 May, 2016


Looks like Box Aphid. Give it a shake and you should get a small white cloud. Most systemic bug killers should deal with it.

19 May, 2016

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