Avenger AG Optima Burndown Herbicide - conc - gal - AAGO1G04If you want to move away from highly toxic synthetic herbicides, Avenger AG Optima is an exceptional choice. It's a non selective weed killer that uses d limonene (a natural citrus oil) as its active ingredient and is effective against a broad spectrum of weeds and grasses. This spray has been developed for agricultural and non agricultural uses and is certified organic so it can be used in organic production as well as conventional growing. Intended