- 1). Increase the height at which you mow the area to at least 2 inches. Poa cannot compete with surrounding grasses when they are this tall. Eventually, the taller grasses will kill off the Poa.
- 2). Attach a grass catcher to the lawn mower during early spring so that you will not redistribute the bluegrass seeds into the lawn. Poa begins to die out as the temperature rises and produces seeds just before it dies out.
- 3). Wait until early September before the Poa begins to regrow and apply a herbicide that contains ethofumesate. Pour the herbicide into a garden sprayer and mix it with water as directed by the packaging instructions. Spray it liberally onto the entire lawn, focusing the spray on the soil, not the existing grass.
- 4). Wait about three weeks and apply the herbicide a second time, in the same manner as the first.
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