Lilac with bracket fungi and white rot fungi
Jackson County Oregon fungi
Thank you for your question. It appears that your lilac is dead, and that nature’s normal (and valuable) organisms are returning it to the earth, to be used for future plants’ nourishment and growth. These are fungi whose ‘job’ is to break down tissue to make is components reuseable. They are not harmful to you, and they are critical to the plant world’s life cycle. Please do not burn them. If you have no place to move the plant to another part of your property, where the fungi can keep recycling, find a forest, reserve or another ‘safe’ place for them. Here is an article on what is happening: https://www.canr.msu.edu/news/fungus_has_a_role_in_a_healthy_forest_ecosystem There will be no contamination, regardless of your choice. Just let nature work. Good luck!
This type of fungus grows only on dead wood, so as long as your other trees are healthy, they won’t get ‘infected.’ And they are gorgeous! Check this out: https://microbiologyonline.org/about-microbiology/introducing-microbes/fungi