I have found using trichlophyr mixed with diesel, 25% tri and 75% diesel save cutting. Said before 10 gallons tri. later seeing progress. The only problem with a 2 gallon sprayer, it takes 3 hours of spraying to empty it. If my figuring is correct that 60 hours of spraying. After 3 hours, its time to do something else. This area used to be a pasture 50 years ago, you could see 1/4 mile in most directions. Before starting to get serious, most places you could see 50 yards at best, in just a few places. Oaks, basswood, maples, aspen , and birch, couple of 4-5 acre wet locations, stock pond, creek flowing in se corner. Land is basically flat, + or - 20 feet.