Botanic Garden >> Gardening > >> Question and Answer >> About Gardening

Honey Mushroom Rhizomorphs Under Poplar Bark

White vine-like strands under bark are rhizomorphs of Armillaria mellea (honey mushroom). They spread between weakened trees. No cure; monitor tree health.

About Gardening: Green Flat Fungus on Oak Trunk: Likely Lichens—Harmless, but Photo Needed for Certainty; Bark Peeling on Pink Dogwood: Sunscald After Shade Removal; Woodpecker Damage and Borer Infestation in Willow Trees; White Grubs Under Apple Tree Bark: Wood Borers Require Pruning, Not Panic; White Fungus Under Crabapple: Fungicide Strategy for Replanting Success; Children Playing Under Cedar: Compaction Risk Low, Mulch Solution; Mushrooms at Pecan Tree Base: Decay Fungi or Harmless Soil Fungi?; Why Girdling a Tree Branch Kills It; Tree Bark Damage from Animals: Assessment and Recovery; White Crust on Exposed Tree Roots: Benign Fungus

Garden Articles

Identifying Unusual Soil Growth Under Container Citrus Trees

Ash Tree Basal Decay: Irreversible Heartwood Rot on West Side

Locust Tree Bark Splitting and Dead Branches: Heat, Drought, and Proper Pruning

Millipedes on Tree Trunks: Harmless and Temporary

Jelly Fungus on Dead Twigs: Harmless Decomposer

Can a Girdled Plum Tree Be Saved?

Tree Conk (Fungal Fruiting Body) on Hickory: What It Means

Plants

Assessing Elm Bark Flaking After Vine Removal

Grey-White Circles on Lilac Trunk: Need Photo for Identification

Oak Tree Bark Sloughing with Gray Fungus After Drought: Hypoxylon Canker—Tree Must Be Removed

Sapsucker Damage on a Young Tree: What to Do

Fungus on Fig Tree Trunk: Wood Decay Warning

Conifer Pitch Exudation: Bark Beetle Activity Assessment

Bark Shedding on Mature Mulberry: Stress, Lightning, or Decline?