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Fact Sheets
Learn more about the pests, diseases, and problems affecting your trees in the greater Seattle area.
Post Planting Guide
This proactive approach diminishes future pruning requirements for mature trees.
Pear Trellis Rust
The disease exhibits a complex life cycle involving two
host plants, Pear and Juniper.
Sequoia Pitch Moth
This chewing moth feeds on coniferous trees such as pines, firs, and spruce.
