I recently purchased the 1 qt concentrate of this in hopes to rid of some poison ivy. My question is regarding application and mixing of this. The ready-to-use version of this only has 0.7% Triclopyr which from what I understand is rather weak and despite repeat applications may not get rid of poison ivy. The concentrate is 8% Triclopyr. The concentrate calls for 4oz of concentrate to 1 gallon of water. If I were to mix this according to the directions, wont this dilute it right back to the 0.7% of Triclopyr or come close? Could I just mix this either @ half of what the directions say or not mix it at all? I apologize for such a bonehead question but I wanted to make sure. If anybody has used this product or can recommend anything better please let me know. Thanks I will applying this by this tree(the name of this tree slips my memory right now). Newer sod about 3 ft in one direction while old lawn and hedges in the other direction if that helps.