Lawn Grass Weeds

Lawn Grass weeds (Rogue grasses) are a perennial menace and far more difficult to eradicate in fine grass lawns.
Once these grasses are established in your lawn it takes a lot more effort and more than one application of herbicide to remove them.

Our sparys contain and help prevent further intrusion of hardy type grass weeds like Paspalum, Kikuyu, Couch, Summer Grass and Poa Annua. Repeat applications are required.
Paspalum is a perennial grass weed which causes problems throughout New Zealand and especially over summer when it grows most actively and produces large tough seed heads. The tough stems of paspalum often grow in excess of 30cm even in closely mown lawns. Paspalum grows best under warm conditions. It becomes almost dormant in winter then often grow s prolifically in summer when many other turf grasses are becoming stressed.

The vigourous growth is also assisted by paspalums good tolerance of very dry conditions. Once paspalum has established it is very difficult to remove and cultural strategies are generally ineffective at controlling it. The spray control we use for paspalum work’s best in the summer months. There is seldom control of paspalum with one application - repeat applications are necessary. We highly recommend opur lawn renovation services post treatment to help aid the lawns recovery and by planting seed in the areas where paspalum once existed, this will help prevent further invasions.

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Poa Annua
Poa Annua is arguably one the most troublesome and common turf weeds in New Zealand. Commonly referred to as "Poa," it’s difficult to identify because Annual Poa is a grass species and control of it is very difficult. Poa annua, as its name suggests, usually lives for only one year.

It is usually found in cool, frequently watered, shaded areas as well as in compacted soils. It grows rapidly in the winter and spring months. Seed heads appear in mid- to late-spring at the same height that the grass is cut. The seed heads give the lawn a whitish appearance. These seeds fall to the ground and germinate in the cooler weather of late summer and fall. When hot, dry weather arrives, the plant turns pale green and dies.

When it dies, it leaves bare areas where large patches of it once existed. The best way to prevent Poa annua from invading your lawn is to keep it from germinating in the first place, and the best prevention is a strong, healthy lawn. A well-rounded lawn care program like ours with properly timed fertilisation, sequential weed control, irrigation and dethatching will strengthen your lawn, help control Poa selectively and provide some residual protection from further establishment of new seedlings.

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Couch is a very common warms season creeping grass native to most of Europe and Asia. Other names include twitch, quick grass, quitch grass, dog grass, and quack grass. It can be used to sew a lawn in warmer climates providing a drought tolerant, fine leafed and hard wearing home lawn that is very easy to mow. It has also long been proven as the grass of choice for stadiums and golf course throughout New Zealand and Australia because of it’s lush appearance, water tolerance and rapid recovery. But it is generally referred to by New Zealanders as a grass weed. It’s a summer grass species but turns dormant in winter and some would extol this as a benefit of couch (to the home owner) by highlighting the low maintenance of the grass in winter.

But there is no changing New Zealanders’ minds that grass should be green in winter so Couch is generally considered a grass weed. Our service is designed to regulate its growth where it is not wanted and discourage the active spread of it.

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