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What can I do about holes in Viburnum leaves?

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A huge number of holes have appeared in leaves of an extensive viburnum hedge in both new growth and older leaves.
I have cut out as much as possible when routinely "pruning" but lots still remain. What is it caused by and what can I do to stop the problem - I do not want to lose this screening hedge.
Many thanks



You've obviously got some kind of infestation by a pest which is munching the leaves as it grows. You could try spraying it with a pesticide, but it'd be a job and a half, probably best undertaken with your own large sprayer and a mix you've bought and made up yourself, rather than a shop bought bugs spray bottle.

16 Jun, 2009


Could it be viburnum beetle? Particularly like Viburnum tinus and V. lantana. The RHS has info on how to deal with it.

16 Jun, 2009


Mine gets it every year, it looks unsightly but the plants health is never affected and it soon gets over it. Perhaps try feeding and watering it especially in prolonged dry spells, to give it a boost. Wont help with the pest, will will toughen up the plants defences.

16 Jun, 2009


With so many large holes I would say it's leaf cutter bees. They make a nest like large cigars. I had them in some rat tail cacti in the greenhouse, they entered the pots through the drainage holes. I took cuttings off the cacti and hung the pots in the apple trees.

16 Jun, 2009


Leaf cutters make large holes, i assume mturnbulls are tiny a few millimeters in size

16 Jun, 2009


Can you put up a photo for us mturnbull, it would help identify.
3 years ago vine weevil killed off some very large viburnum, the infestation smelt like rotten potatoes. If the holes are very small it could be shot hole borer.

17 Jun, 2009

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