Before I left NJ, in '73, I made up a spraying rig and put a 275 gallon tank in the bed of my Pickup. Went out after work spraying them things using 70% seven dust and a surfactant. Made some nice profit from that. Had MANY satisfied customers. Once in an area, ALL the neighbors would come out and put money in my hand, to be "Next". Sometimes, I had to return day after day, until the whole area was treated.
Them things will cause trees to die from "Sunburn", same as people getting burnt.
Sold the rig, and a couple months later, left the toxic zone, known as NJ.