this is a 6 acre field planted on April 29, 2015
real clean at this point in time
24 ounces of Treflan per acre incorporated into soil about 10 days before planting
as I was planting I was spraying out of the back of the planter 4 ounces of Spartan Herbicide and 2 ounces of insecticide per acre
on May 12, 2015 I sprayed 16 ounces of "Dual" over the top of all sunflower fields
my next step will be to run the "hooded spray rig" to help keep the middles clean, this will be done just before the plants are knee high
if you want to stay clean you must start clean, growing sunflowers is real easy, its the weeds and grasses that cause all of the problems