White bacteria on lilac stems - Ask Extension
When we cut out the lilac bush and dispose of it what must you do to heal the soil so we can replant kin
Knowledgebase
White bacteria on lilac stems #878618
Asked July 24, 2024, 3:49 PM EDT
When we cut out the lilac bush and dispose of it what must you do to heal the soil so we can replant kin
Tillamook County Oregon
Expert Response
Thank you for your question.
It sounds like you might have had powdery mildew which can infect leaves and stems of lilacs. Here is some information from the Pacific Northwest Plant Disease Management Handbook - https://pnwhandbooks.org/plantdisease/host-disease/lilac-syringa-spp-powdery-mildew
Powdery mildew spores can overwinter in plant debris and soil so remove any existing plant debris and replace surface soil to help prevent reinfection of any new plants. Space plants so they have good air circulation and don't plant lilacs in shady areas.
It sounds like you might have had powdery mildew which can infect leaves and stems of lilacs. Here is some information from the Pacific Northwest Plant Disease Management Handbook - https://pnwhandbooks.org/plantdisease/host-disease/lilac-syringa-spp-powdery-mildew
Powdery mildew spores can overwinter in plant debris and soil so remove any existing plant debris and replace surface soil to help prevent reinfection of any new plants. Space plants so they have good air circulation and don't plant lilacs in shady areas.
