I have very very little of the old msma left. I have some crab goose and sedge here and there. I dont want to burn anyone yard up but since i have it i want to use whats left and be done with it and get it off the shelf. Ive never sprayed when its hot hot. Do you older fellas recomend spraying at very low rate and only touch the leaf of the weed or do i need to stay away from it all together when its 95 degrees outside? what is your experience? thanks!