Bukenya from Mpigi writes
Weedmaster – while not specifically labeled to kill ginger plants – likely would harm them due to the plants being similar in nature to other broadleaf weeds the product targets. If you need to kill grassy weeds safely in areas you have ginger planted, you could use a product like Grass Out Max. However if you have broadleaf weeds you likely would need to hand pull or carefully spot treat them to remove them from the ginger area.
Answer last updated on: 11/19/2020