How do I know if my tree has sooty mould?
Black soot-like film on leaves, branches, cars and patio furniture below the tree. It attacks anything sitting under an insect producing honeydew.
What it does to the tree
Harmless in itself — it grows on the honeydew, not on the tree. It is a symptom. Treating the mould achieves nothing; find the aphids or scale above it.
Indiana specifics
Common under aphid-infested maple and linden in mid-summer.
Related
- Can a tree with sooty mould be saved?→
- Is sooty mould a problem in Indiana?→
- What does treatment for sooty mould cost?→
- Does sooty mould spread to other trees?→
- What trees does sooty mould attack?→
- How do I know if my tree has emerald ash borer?→
- Can a tree with emerald ash borer be saved?→
- Is emerald ash borer a problem in Indiana?→