If you can, use a liquid spray applied at a volume and pressure to penetrate into bushes and past the leaf canopy of grass. In most cases, that means 5 gallons per 1000 or more with some pressure behind it.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738