Earlier this year, the forum identified and gave advice on a woolly aphid problem on our apple tree, for which I thank you very much. I blithely accepted the advice that we should apply a winter wash to kill the nymphs, but now that winter is nearly here I realise that I don't know anything about doing so! For a start, what is it? Will it kill everything else, or is it aphid specific and what is the best type to use to be ecofriendly but effective? Also when do I do it - is there a particular time in the aphids cycle which can be interrupted? Do I spray it or scrub the tree (again)? All help greatly appreciated .... I've never had a big tree to be responsible for before.
Winter tree wash
trying to prevent woolly aphidsJump to latest post
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