My dahlias have been destroyed by slugs probably as the weather favoured slugs. I ahve used slug pellets but they still got destroyed. What could i do for next year as it is too late to save this this year.
The damage is probably being done by snails which have got past the slug pellets and remain in the plants hidden by foliage. See if you can find them and remove them. Try to protect dahlias at the first signs of damage in spring and do not let them get amid the mass of stems and leaves.