Alan from United States writes,
I purchased Tengard SFR from you as a pre-treatment against Pine Bark Beetles. How much per gallon?
The trees are extremely stressed due to Calif drought in the Sierra Nevada Mts, at about 4500ft. We are prohibited from watering the trees, making the situation worse. There are many infested trees in the immediate area. I will be spraying from a hand held hose sprayer, trying to reach as high as possible. Thanks for your expert advice.
Answer last updated on: 05/12/2015