Mark from Arnold, Ca writes
I am trying to protect mature, established pine trees from beetles. I understand the application rates, but I cannot find the intervals (how often) Tengard should be applied.Once a year, quarter, month? A separate question is the height of application. The trees I would be applying the insecticide to are 60' to 80' high. I cannot apply into the canopy as recommended. Would 10'-12' on the trunk work? Thanks for you help!
Tengard SFR can be used monthly as needed for pine tree beetles. There should not be more than 2 lbs of product used per acre per year. You will spray the lower branches and trunks prior to adult emergence.
Answer last updated on: 06/06/2016
