Spruce trees pla nted over mulch and plastic liner. How to apply tree & shrub granules?
How do I apply Bayer Tree & Shrub if trees are planted above mulch and plastic liner?
Hunterdon County New Jersey
I took a look at the label, here:
Based on the label, it appears you'll need to pull back the plastic for application. The tree needs to absorb the product. Thus, you'll need to get the product spread with water on top of the roots where it can be absorbed.