Hola Peeps
I had this comment on the blog, I am going to reply to her but wanted to see what you lot would say
"I have a big problem with my orchard of orange, tangerine, lemon and grapefruit trees. I do hope you can help me. The leaves of all these trees are covered in black stuff, which is sticky and almost impossible to remove. Heavy rain doesn´t touch it. Now the oranges and tangerines are beginning to turn orange and they too are plastered with this black stuff. I hesitate to use a power hose on the trees as it would probably remove all the leaves."
Simone
General Gardening Spain