Winter Grass (Poa Annua) - Lawn Solutions Australia

Winter Grass (Poa Annua)

“One year of seeds brings seven years of weeds!” – This could not be any truer than when it comes to the fight against Winter Grass in your turf.

 

If you have an invasion of Winter Grass, you’ll definitely want to treat it before it germinates.  If you allow it to drop its seeds, next winter it will be back, twice as badly as it was the previous year. Best plan of attack is to treat it as soon as it appears.

What is Winter Grass?

 Winter Grass, or Poa Annua as it is scientifically known, is a low growing turf grass. It has soft, drooping green leaves grown in tufts with triangular shaped seed heads.

Winter Grass is widespread in Australia and spreads throughout the Winter months.

When does it appear?

Winter Grass begins germinating in the soil in May. You will start to see it emerging within your turf in late May and June and continue to spread throughout the Winter months.

How do I get rid of it?

Winter Grass can be removed very easily by hand as it doesn’t have particularly deep roots and it doesn’t have any runners, growing in simple clumps. Removing it by hand can be somewhat tedious so fortunately there are specifically targeted herbicide controls you can use. Targeting it before it emerges during May is the key to preventing it from germinating and going to seed. A pre-emergent like Oxafert can be applied and it will target the Winter Grass before it emerges from the soil.

Winter Grass Killer is a selective control that will kill Winter Grass by targeting the roots, so it is extremely important to spray early in its life cycle in May before seed heads appear. Once it goes to seed, they will be present again in your turf the following year and the cycle will continue. Using a combination of a pre-emergent like Oxafert and a selective control like Winter Grass Killer at the correct time of year should ensure it is eradicated from your lawn.

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