How to Get Rid of Green Field Onions

By Home & Garden Last updated Sunday, June/23/2024

1). Wait until October or November to begin removal of the green field onions since this is when they are weak.
2). Tie a 10-foot long piece of rope tightly around one end of a 2-by-4 board. Tie the other end of the rope around the other end of the board to create a loop. Drag the board across the areas of green field onion infestation to roughen the stalks.
3). Open a garden sprayer and fill it with a herbicide that contains a combination of the ingredients 2,4-D and dicamba. Use the amounts specified on the container for your size lawn and dilute it with water if instructed to do so.
4). Spray the herbicide mixture directly onto the clumps of green field onions until the thin blades are saturated.
5). Wait until the following February or March when the green field onions just start to regrow. Apply a second dose of the herbicide using the same amount and technique used for the first application.

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