Roger Sewell
Seedling
I have been keeping Koi for over 25 years and recently have been plagued with a type of Fern that grows on the side of the pond very rapidly. None of the normal blanket weed treatments has any effect on it (I assume because it's not blanket weed). I've attached a photograph of the Fern in the hope that someone can identify it and suggest a treatment.
Thanks
Thanks