When I sprayed,grazon on my pastures noticed a week or so later over spray that hit the mesquite was dyeing,so bought a few small bottles of 2,4-d and mixed it up in a smaller 20 gallon sprayer and sprayed and it is killing the mesquite,have only used it on smaller mesquite under 4' but is working so far and alot cheaper then remedy.Also last time I went to go get some remedy the guy at the co-op said relegate is a newer cheaper remedy and at $56 a gallon alot cheper then remedy at $78 a gallon.And by using the 2,4-d I can over spray the mesquite and not have to worry about killing all my grass,and for about 7 bucks a pint mixed into a 20 gallon sprayer can cover alot more ground cheaper.My ag-agent is coming out next week to see what I've been doing and spray some mesquite to test it for himself.