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Dublin, Ireland Ie

Good afternoon, what should I do with this shrub? it's black with gunge, I've sprayed it several times with Resolva Bug Killer the same stuff is on other shrubs also Thanks




It looks like mold or mildew. That's environmental usually brought on my not enough sun, poor air circulation & excessive moisture. Can you move it to open space in the sun, prune out the old branches or cut away surrounding shrubs.

11 Jul, 2015


That is sooty mould. It grows on the honeydew excreted by aphids. So killing the aphids is a good first step, the next thing to do is to spend a few hours wiping the mould off the leaves. Try spraying with a fungicide too.

11 Jul, 2015


Is the shrub by any chance overhung by a sycamore? it happens a lot with them.

11 Jul, 2015

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