Botanic Garden >> Gardening > >> Question and Answer >> Plant Diseases

Old Lilac with Burnt Leaves and Few Flowers: Root Stress?

Mature Lilac Failing to Bloom, Leaves Scorched

Check trunk base for bark damage. Symptoms suggest root stress (too wet/dry). Consult a local nursery for on-site evaluation. UK conditions may differ.

Plant Diseases: Poplar Tree Decay: Irreversible Heart Rot and Structural Risk; Lilac Damaged by Hornets? Likely Secondary to Underlying Decline; Diagnosing Lilac Decline: Root Rot and Herbicide Injury; Grey-White Circles on Lilac Trunk: Need Photo for Identification; Apple Tree Bark Separating from Trunk: Tree Dead or Dying—Check for Borers, Fire Blight, Contact Extension; Lemon Blossom End Rot: Fungus Treatable with Atomic Grow; Sugar Maple Lightning Strike and Lichens: Damage Assessment; Tree Identification: Common Lilac (Syringa vulgaris); Transplanting a Lilac in Early Spring; Old Lemon Tree Decline After Repotting and Pruning

Garden Articles

Recovering Citrus from Fertilizer Burn: Slow-Release and Foliar Alternatives

Managing Powdery Mildew on Mature Lilac Hedge

Lilac Tree Dieback: Blight, Root Rot, and Drainage Solutions

Mulberry Tree with Borer Holes: Ambrosia Beetle Suspected

Diagnosing and Treating a Declining Ligustrum Tree

Lilac Curled Leaves with Black Powder: Aphids and Sooty Mold

Cherry Tree Black Canker: Professional Diagnosis Needed

Plants

Lilac in California: Humidity, Leaf Miner, and Pruning Rules

Sycamore Tree Borer Infestation: Organic Treatment with Atomic Grow

Chinese Pistache Sudden Decline: Water Stress or Hidden Damage?

Peach Fruit Crystalized Slime: Insect Exudate, Not Disease

Young Magnolia Blight: Aphid/Scale Infection and Atomic Grow Commercial Rescue

Snowball Tree and Linden Leaf Damage: Fertilizer Burn, Snails, and Neem Oil

Newly Planted Lilac with Brown Leaves: Transplant Shock or Disease?