What can be done against annual bluegrass Poa annua in the lawn?

There is a whole range of measures that can be taken against Poa annua help.

1. The right irrigation strategy:
We recommend the longest possible watering intervals. To do this, you should take a close look at the water retention capacity of the lawn and work with long watering breaks. Depending on the wind and drought situation, this should be no more than once a week. However, this does not apply to sandy soils. Keep a close eye on your lawn so that it doesn't dry out. If it takes on a blue-green hue, it is too dry and needs to be watered immediately. The right lawn mixture and a well-maintained lawn will survive these longer intervals and even develop stronger, deeper roots as a result. Poa annua doesn't like it at all and dries up.

2. Correct mowing:
The lawn should be mowed 1-2 times a week. Only mow with a grass catcher so that Poa annua cannot spread via seed.

3. Cut out:
This is a time-consuming alternative, but quite effective. The soil should be dry. It is best to use a weed cutter, as the annual bluegrass must be removed with the root. To prevent the plant from spreading over the seeds, dispose of it in a closed waste garbage can. You can then close the gap with Earth and Re-seeding.

4. Sulphuric acid ammonia - "SSA" for short:
Instead of a full fertilization you can use a dose of "SSA". This creates a growth spurt and acidifies the soil. As annual bluegrass does not like acidic soil, this can sometimes lead to good results.