Korean Snow Pear Fire Blight: Prune and Spray Copper/Streptomycin

6-year tree: branch tips died last year; this spring whole branches dead, progressing. Part in bloom.

Diagnosis: Fire Blight

Common on ornamental pears. Sudden wilting, blackening, "scorched" look.

Prune dead wood 12+ inches below visible damage; sterilize tools.
Spray copper mixture or streptomycin at bloom (first spray at open blossom, repeat 4–7 days while blooming).
50-day pre-harvest interval for streptomycin.

Tree can be saved.

Plant Diseases: Hypoxylon Canker on Holly Tree: Gas Leak Connection?; Yellow Fungus on Pear Tree Bark: Identification and Management; Korean Snow Pear Dieback: Fire Blight or Natural Aging; Mature Ligustrum Splitting and Declining: Age, Weather, and Rot; Limp Branches on Cleveland Pear: Possible Causes; Cleveland Pear Sudden Death: Fire Blight or Regional Decline?; Bradford Pear Shape Correction: Slow, Careful Pruning; Snow-Damaged Magnolia: Prune in Spring, Not Now; Korean Dogwood Vigorous Shoots: Wait Before Pruning; Bradford Pear Tree Pruning: Complete Guide for Shape & Health

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