Viburnum x Carlcephalum (standard)

Hi everyone, my viburnum is suffering from an infestation of small white grubs with black chevrons along their backs, they're causing leaf curl, inside which they live, and eventual leaf fall. I'd rather use an organic product to cure the problem to prevent harm to wildlife. I'd be grateful if anyone could identify the problem and suggest a cure.

Thanks in advance

jimbo2

 

http://www.greengardener.co.uk/product.asp?id_pc=22&cat=62&id_product=356

It sounds as though the viburnum either has Viburnum Beetle larvae or Sawfly larvae.
The above link promises control of the first, but AFAIK sawfly is very difficult to control.

 

Thanks noisette47, I'll do a little research into both of your suggestions.

Thanks again.

 

Good luck! Hope you manage to control them!