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Nh writes

How often should Safari 20SG Systemic Insecticide with Dinotefuran be applied for preventative maintenance on hemlocks for Wooly Adelgid?


Safari 20SG Systemic Insecticide with Dinotefuran will typically last between 6 months to 1 year and is best applied before pests are an issue, the label does state to make the first application just before pest populations reach an economic threshold. If necessary, make a second application after 14-21 days. Please keep in mind that there are many variables that can influence how long a systemic is still active in the target plant such as soil condition, rainfall, and health of the plant.  Most people only apply once per year but no more than twice. Please review the product label for application instructions for foliar, broadcast and soil denching to treat Hemlock Woolly Adelgid beginning on page 8 of the product label and ending on page 15. 


Answer last updated on: 06/08/2021

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