I've been using this on my Ficus that get thrips. I tried everything else I could think of first, including defoliation. This stuff works, and no ill effects that I can see. They trees are all healthy and happy.
http://amzn.com/B000BX1HKI
I went to may Amazon order history and posted without even clicking your link.
Please use with caution & at your own risk, etc. Pesticides in general make me nervous, and I'd hate for something to happen to one of your trees because of something I recommended.
I've been using this stuff since early spring of this year, on Ficus benjamina, microcarpa, kinman - only after I saw evidence of thrips. All are in pots, and as I said, doing fine. One application is all I've ever put on any single tree.
Good luck!
If you need serious solutions........
http://www.domyownpestcontrol.com/avid-015-ec-miticide-insecticide-p-2330.html
The systemic you linked to is Imidacloprid and DoMyOwnPest has that is a generic form. I have used this on houseplants and my black pines without trouble.Oh I know I know, but like I said, I'd just like to steer clear of those whenever possible. My trees and I aren't big fans of hardcore sprays.