Fungicide To Get Rid Of Lecanoromycetes

Question

My trees and shrubs and even the screens on my lanais have been attacked by this fungus. They are killing shrumbs and are actually clinging to and growing on my screened in porch! What can I do to kill these fungi?

Answer 1

They do not kill plants, so they are just a product of proper environment for them. They are more likely to grow when plants are sick to begin with, though.

In order to get rid of them for good, it will be necessary to find out the underlying disease. I would guess that some bacteria or algae is around the area, which if widespread enough, will require the inspection of your local extension service.

This article will explain lichens and their rose on trees:

https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm

This article will help you to find the closest extension service to you:

https://www.gardeningknowhow.com/extension-search

Answer 2

IS THER A FUNGICIDE THAT I CAN USE TO REMOVE THEM FROM THE SCREENS?