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In this video, DOF forest health experts demonstrate how to safely and effectively apply an insecticide soil drench treatment to hemlock trees to protect against the invasive hemlock woolly adelgid. To learn more about the hemlock woolly adelgid, visit DOF's website: ow.ly/EkUL50PaUWK
Note: do not drink from a container used to mix or hold chemicals, even after cleaning.
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