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Debra from Henderson writes

What is the correct ratio to use for a trunk application of Safari 20 SG Systemic Insecticide with Dinotefuran in spruce trees?

I have 6 4 inch diameter spruce trees with a one gallon sprayer. It says to use 12-24 ounces of Safari. Is that 3-6 cups?

Answer:

Per the product label on the Safari 20SG Systemic Insecticide with Dinotefuran you would use 1.0 - 2.1 ounces per 10 feet of height of the tree. As a soil drench: Mix required does in water and uniformly apply to soil around base of shrub or tree. Pull back mulch before drenching. Apply 1-4 pints of drench solution per foot of inch of trunk diameter of trees. Adjust drench volume based on soil type, soil moisture, and thickness of mulch so that product is moved into root zone. To enhance soil penetration in heavy soils and sloping terrain, dig shallow holes around tree and shrub, and apply drench solution in holes. Lower drench volumes may be less effective in dry soils or when applied over heavy mulch unless there is adequate rainfall or irrigation after application to move product into root zone. 

Answer last updated on: 05/18/2017

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