How do you kill onion weed?
20 October 2019 03:48 AM
Onion weed, nut grass, bulb forming oxalis, and other similar weeds are notoriously difficult to kill. Get the Zero Rapid onto the green parts of the plant, either by carefully spraying or by dabbing with neat Zero Gel. Onion weed's glossy leaves will repel the herbicide so sometimes helpful to suggest adding a few drops of household washing up detergent to the spraying solution. The herbicide will kill the main bulb but the side bulblets will then detach themselves and send up new shoots. These must also be treated.