Last year our Escallonia hedge (in Wexford) lost all its leaves. It had similiar black spots to the Black Spot on Roses. I sprayed it with Dithane 945 as advised by a garden centre about 3 weeks ago when the new leaves were growing. Should I repeat the procedure or use something else. The new leaves seem to have spots again this year. The hedge is about 8 years old and about 6ft tall. I dont put any fertilizer on it.
If you enter the word escallonia in the search box in Ask Gerry you will get several answers on escallonia. or click on this link: https://www.garden.ie/askgerry_answers.aspx?article=317&id=902