During the summer, the best way to prevent additional fire blight spread is to control sucking insects like aphids and leafhoppers.Īn otherwise healthy tree showing signs of Fire Blight can be cared for and managed through pruning of damaged areas.When growth stops, the spread of fire blight should also stop. It is not recommended to cut out infected shoots after terminal growth has stopped.If burning is impossible, you can dry out branches thoroughly and mulch them later with a chipper. For disposal of infected branches, prunings should ideally be burned offsite from the orchard.When pruning larger limbs, consider using the ugly stub method: make a cut about 6-12 inches below the fireblight and if the location of the cut is awkward, then remove the remainder of the branch later during winter pruning.Always prune into healthy wood, 6 to 12 inches below the visible signs of fireblight.It is most effective to prune trees where there is a low incidence of fire blight.Try to cut out infection before the signs of necrosis (singed/ burned appearance in leaves).Infection spreads through moisture and rainwater. If possible, wait until the weather is dry before pruning.If you notice signs of infection, keep these things in mind: In the growing region in and around Philadelphia, you may begin to observe signs of infection in late spring, around May 25th. It is important to take action early in order to most effectively prevent the spread of Fire Blight. Fire Blight can also infect fruit, which appear blackened and shriveled.
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