I have a pyracantha (firethorn) about 5/6 years old. Last year, and again
now, the leaves have appeared thin and curled-in and although they don't
fall off I can clearly see the black bark between the thin foliage. The
flowers on the other hand don't form properly before withering.
I sprayed with a systhane fungicide, but it was either too late or the
wrong stuff. It made it no worse, but no better.
I am in the North-East and firethorn is used by the local council as
hedging so it should be fine.
Any ideas, as I am on the point of digging it up?
--
Jim S