Pear Archives
Insects and diseases that can affect Pear (Pyrus calleryana).
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Fire Blight
Fire blight is a disease caused by the bacterium Erwinia amylovora. Twigs, branches, and leaders on trees and shrubs wilt…
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Pear Scab
Pear scab resembles apple scab in nearly all respects and is caused by the closely related fungus Venturia pirina.
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Pear Trellis Rust
ptoms on pear begin as yellowish-orange leaf spots early in the season. Young fruit and twigs can also be infected.