Charles from Copperhill writes
I have one hemlock that needs treated. It is 48 inches in diameter at breast height. How much water & product do I use?
For a soil drench application to a tree that's 48 inches DBH, you may uniformly apply a 1.6 oz packet of Zenith 75 WSP Insecticide in no less than 10 gallons of water per 1,000 square feet around the base of the tree, directed to the root zone.
Answer last updated on: 05/07/2019