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Canna and hydrangea leaves being eaten
Rose27
Posts: 4
i have 2 cannas and 3 hydrangeas in pots, all flourishing but now all are being eaten! The canna has some leaf cutter beetle damage from earlier but this seems to be something different, even the new flower has been nibbled. I can't see any snails/slugs, or any pests on underside of leaves. Any advice much appreciated.
0
Posts
The usual culprits on Cannas are slugs/snails. If you go out at night - you might see some on them then. They often attack large flower buds like those on lilies and clematis too, which can be infuriating as it can prevent the flower opening at all if it's badly damaged.
Healthy hydrangeas usually shrug off any minor attacks from pests and diseases - they don't have many enemies - scale and greenfly are the main two. Scale is probably the most damaging, but you would probably see the insects quite clearly on the stems etc - they're little grey 'blobs'. Is the damage different on each type of plant? Both of those are sap sucking - as opposed to eating holes in the plants like slugs.
A photo would help get a better ID of the problem(s). Click on the camera icon, top right of the posting woindow, and follow the instructions. If it doesn't upload, you may need to resize the pic.
I live in west central Scotland - not where that photo is...
My cannas have hardly grown this year. ....I think it may be the lack of sunshine. Very disappointed as they are usually 5' tall and flowering by this time of the year.