A Technical Report from The Bartlett Tree Research Laboratories
Fire blight is a very destructive disease on many species in the rose family, including pear, crabapple, cotoneaster, mountain ash, hawthorn, pyracantha, spirea, and rose.
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- I lost one pear tree last year, and now another is showing signs of yellowing leaves with black tips. I thought it might be fire blight, but I don't see any cankers. Any advice?
- Is Arborbiotic injected into the root collar or trunk flare? I understand annual injections may not fully control fire blight in Callery 'Redspire' pears despite using Forti Phite plus calcium, and infected branches need pruning six inches back with sterilized tools. Is this correct?
- How should fire blight in an ornamental pear tree be managed?