Patrick from Cincinnati, Oh writes
I was recommended by an arborist to use Safari to do a drench for an aphid infestation on some large (10' dia. trunk) oak trees on my property. I have not been able to figure out how to calculate the proper volumes/concentrations from the label PDF file found on line. Can you give some guidance on how to calculate the proper amount and concentrations based on tree trunk diameter?
The mixing ratio for Safari is 1.25 - 5.0 level teaspoons per inch of the trunk diameter at breast height. For your tree, you will use 12.5-50 level teaspoons. This needs to be mixed in between 10-15 gallons of water to ensure that the product gets into the roots of your tree.
Answer last updated on: 06/03/2016
