Weeds

 

While some people often think that at least the weeds are patches of green colour within their lawn, you need to be aware that they compete do with the grass species for light, nutrients and water and their presence is often to the detriment of your turf. They are also very soft and collapse under nearly any wear, and can be slippery and dangerous to the people and children using the lawn. 

When controlling weeds, make sure you spray while the weeds are growing actively. The chemicals work by disrupting particular processes within the plant. When the plant is growing actively, the distribution of the chemical throughout the plant occurs efficiently and the cellular processes that the chemical affects are occurring at a high rate. Therefore at this time the best results will be achieved. To further ensure the best results possible, don't mow the weeds you intend to spray from at least 3 or more days before and after herbicide application and don't fertilise in the 2-week (or greater) period before or after the herbicide application. 

As mentioned previously, make sure you minimise the drift from your herbicide spray so that you don't harm other plants in your, or your next-door neighbour's, yard. Also be aware that some chemicals you may want to use to control any weeds in your lawn will also kill your turf, so be particularly careful to apply the herbicide as selectively as possible.

 

Turfgrass Weeds

Below we have provided a range of turfgrass weeds which can be found within warm- and or cool-season turfgrasses. Included within each weed thumbnail are technical descriptors and control options for both the home owner and professional sports turf ground manager or superintendent.

Awnless barnyard grass

Echinochloa colona

 

Bahia grass

Paspalum notatum

 

Billygoat weed

Ageratum conyzoides

 

Bindi

Soliva sessilis

 

Blue snake weed

Stachytarpheta jamaicensis

 

Burr medic

Medicago polymorpha

 

Capeweed

Arctotheca calendula

 

Carrot weed

Cotula australis

 

Catsear

Hypochoeris radicata

 

Chickweed

Stellaria media

 

Clover

Trifolium repens

 

Cobbler's pegs

Bidens pilosa

 

Creeping indigo

Indigofera spicata

 

Creeping oaxlis

Oxalis corniculata

 

Crowsfoot

Eleusine indica

 

Dandelion

Taraxacum officinale

 

Emilia

Emilia sonchifolia

 

Flickweed

Cardamine hirsuta

 

Gomphrena weed

Gomphrena celosioides

 

Hairy armgrass

Urochloa piligera

 

Indian bluegrass

Bothriochloa pertusa

 

Lambs tongue

Plantago lanceolata

 

Liverseed grass

Urochloa panicoides

 

Mallow

Malva spp.

 

Mullumbimby couch

Cyperus brevifolius

 

Nutgrass

Cyperus rotundus

 

Old World Diamond Flower

Hedyotis corymbosa

 

Paspalum dilatatum

Paspalum dilatatum

 

Pigweed

Portulaca oleracea

 

Pink purslane

Portulaca oleracea

 

Poa

Poa annua

 

Ryegrass

Lolium spp.

 

Shepherds Purse

Capsella bursa-pastoris

 

Summer grass

Digitaria spp.

 

Water couch

Paspalum distichum

 

Wiregrass

Eragrostis tenuifolia

 

Wireweed

Polygonum heterophyllum