Fire blight (bacterial) causes sudden branch tip browning ("shepherd's crook") in pear and apple. Streptomycin is unavailable; copper sprays (Kop-R-Spray, Kocide) work but may russet fruit.
Prune out all infected wood, cutting 12 inches below visible symptoms. Disinfect tools between cuts (1:10 bleach). Destroy debris.
Spray Messenger at leaf emergence to induce systemic resistance.
Yellow Fungus on Pear Tree Bark: Identification and Management
Old Cherry Tree Dead Leaves and Holes: Fire Blight—Prune, Spray, Remove Moss
Cleveland Select Pear Trees: Fire Blight Diagnosis and Management
Fire Blight on Pear and Apple: Streptomycin Spray at Bud Break
Mystery Fruit Tree: Pear or Wild Seedling?
Fire Blight in Pear Trees: Identification, Management, and Prevention
Fire Blight: Symptoms, Disease Cycle, and Management for Rosaceous Plants
Lilac Bacterial Blight: Prune and Spray Copper
Chitalpa Dieback: Prune Dead, Encourage Basal Sprouts
Pecan Nuts Moldy or Shriveled: Water Stress, Not Disease
Peach Tree Black Leaves: Fire Blight Diagnosis and Control
Bradford Pear Shape Correction: Slow, Careful Pruning
Pear Tree Propagation: Seeds Variable, Cuttings Difficult, Grafting Standard
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