soot on my camellia?
We have a (previously neglected) Camellia in the garden, which a black/grey
soot-like residue on some of the leaves and a few buds. Is it likely to be a fungus? Treatment? It's possible that the plant could have been splashed while cleaning out gutters but the 'soot' doesn't wash off easily thanks in advance John |
soot on my camellia?
"John Martin" wrote in message ... We have a (previously neglected) Camellia in the garden, which a black/grey soot-like residue on some of the leaves and a few buds. Is it likely to be a fungus? Treatment? It's possible that the plant could have been splashed while cleaning out gutters but the 'soot' doesn't wash off easily thanks in advance John It's growing in the shade of a Sycamore? The mould is growing on honeydew secreted by aphids on the overhanging trees. Not in itself all that harmful but disfiguring and if very bad it obviously inhibits photosynthesis. Not much to do except get rid of the overhanging growth or move the Camellia if it's still small enough. Rod |
soot on my camellia?
When I had this it was woolly aphids. Any sign of them in white 'wool'? If
so crush them between your fingers John Martin wrote: : We have a (previously neglected) Camellia in the garden, which a : black/grey soot-like residue on some of the leaves and a few buds. Is : it likely to be a fungus? Treatment? : : It's possible that the plant could have been splashed while cleaning : out gutters but the 'soot' doesn't wash off easily : : thanks in advance : : John |
soot on my camellia?
They've just had the answer on gardening question time, it's aphids that
leave the honeydew residue which attracts sooty mould. Check under your leaves John Martin wrote: : We have a (previously neglected) Camellia in the garden, which a : black/grey soot-like residue on some of the leaves and a few buds. Is : it likely to be a fungus? Treatment? : : It's possible that the plant could have been splashed while cleaning : out gutters but the 'soot' doesn't wash off easily : : thanks in advance : : John |
soot on my camellia?
"John wrote in message We have a (previously neglected) Camellia in the garden, which a black/grey soot-like residue on some of the leaves and a few buds. Is it likely to be a fungus? Treatment? Sooty Mould growing on the secretions from sap sucking insects. Camellias do suffer from scale insects (as do Acers) so check the leaves and thin stems above the blackened leaves and see if that is the cause. They look like 1cm oval brown scales which will come off if pushed. When breeding they go woolly and can then be confused with Woolly Aphids although you can still see the scale if you look. If it's only a smallish plant you can use a high pressure spray of ordinary water with a touch of detergent to dislodge them, they can't crawl back once adult. Keep the sprayer well pumped up. You will get wet though! :-) I do this for our Citrus which are also prone to them. Otherwise, there are proprietary sprays available. -- Bob www.pooleygreengrowers.org.uk/ about an Allotment site in Runnymede fighting for it's existence. |
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