Croton Dead Branches: Water, Fertilizer, or Neem Oil

Totally leafless: Not enough water
Leaves on live wood only: Apply Neem Oil Pure (broad spectrum)

Key West crotons: branches dead, bark stripped look. No leaves on dead wood. Water restricted, no fertilizer used.

Two Readings

Plant Diseases: Honeylocust 'Shademaster' Branch Dieback: Canker or Borer Risk; Managing Dead Scaffold Branch on Mature Mimosa; Dwarf Magnolia Mortality Assessment: Scratch Test and Basal Inspection; Diagnosing Red Maple Decline: White Spots, Shriveling Leaves, and Fungus; Red Leaf Maple Dieback: Winter Desiccation and Canopy Restructuring; Weeping Willow Dead Branches: Normal Shading or Decline?; Forsythia Sudden Stem Death: Transplant Shock or Herbicide?; Weeping Willow Lower Branch Dieback: Normal Shading; Is Your Red Maple Dead? How to Check; To Trim or Not to Trim Dead Leaves on Drosophyllum

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