My zoysia sod was laid last June and I did not use a pre-emergent last fall because it was so young. However this spring I would like to. I called my local Lesco, and he was not sure what was safe or not safe on the Zoysia. I want to use a granular product with the absolute best results. Is pendamethalin safe on Zoysia, because I am leaning towards the 0-0-7 Pendamethalin from Lesco but wanted to check with the real experts first. He said it comes in a 50 lb. bag and will cover 10,000 sq. ft...is this correct? Thank you for your consideration.