Vertical splits on the southeast side are classic frost cracks—rapid winter temperature drops cause outer wood to contract faster than inner wood. They may reopen annually, forming "frost ribs." No treatment needed; monitor for borer activity (sawdust, sap) and spray Merit if detected.
Partial defoliation by unknown caterpillars/beetles rarely harms tree health. Lindens readily releaf. If feeding is heavy, identify the pest for targeted Bt or contact spray. Otherwise, tolerate minor damage.
Trunk cracks and leaf feeders are unrelated. Address each separately: structural monitoring for cracks, pest ID for defoliators.
New Tibouchina Tree Dropping Leaves with Tiny Holes — Slugs, Snails, or Grasshoppers?
Navel Orange Leaf Curl: Aphids or Leaf Miners—Not Vegetable Oil
Linden Borers and Decay: Treat Borers, Accept Hollows
Crabapple Trees Defoliated by Eastern Tent Caterpillars: Recovery Steps
Sycamore Maple in 300-sq-ft Yard: Wrong Tree, Wrong Place, HOA Conflict
Ash/Hickory Leaf Spot: Fungal Disease Management and Tree Identification
Fig Tree White Foam and Leaf Eating: NEEM Spray
Bradford Pear Leaf Blackening: Transplant Shock, Not Fire Blight
Hackberry Tree Decline: Aphids, Weed Barrier, and Root Damage
Maple with Holes and Black Bark: Borers and Surface Fungus
Copyright © www.100flowers.win Botanic Garden All Rights Reserved