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Dallis Grass (Paspalum dilatatum)

Dallisgrass, also known as Paspalum, Sticky Heads, or Water Grass, is a perennial grass species belonging to the Poaceae family. Native to South East and Southern Brazil and other parts of South America, this plant is known for its rapid growth and adaptability. Its stalks produce an abundance of seeds, which support various bird species like the long-tailed widowbird, while also contributing to its fast spread.

Although it provides ecological benefits in its native habitat, Dallisgrass is considered invasive in many regions outside its origin. Once established, it becomes notoriously difficult to remove, making it a challenge for land management and gardeners alike.

Dallisgrass (Paspalum dilatatum) is a common, resilient weed that often invades lawns and pastures. It&#;s tough, spreading through both seeds and rhizomes, making it difficult to eradicate. One potential solution is MSM (metsulfuron-methyl), a selective herbicide known for its efficacy against a variety of broadleaf weeds and some grasses. But can MSM truly kill dallisgrass?

The Effectiveness of MSM on Dallisgrass

Metsulfuron-methyl is commonly used in agricultural and turf management due to its potency and relatively low application rates. However, its effectiveness against dallisgrass is somewhat mixed. While MSM can stress and suppress dallisgrass, it may not provide a complete kill, especially in mature or well-established stands. Repeated applications are often necessary to achieve significant control, and even then, total eradication may not be guaranteed.

The variability in MSM&#;s effectiveness stems from several factors:
1. Application Timing: Applying MSM at the right growth stage of dallisgrass is crucial. Young, actively growing plants are more susceptible than mature, established ones.
2. Environmental Conditions: Weather conditions, such as temperature and ra

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    • Management In lawns

    Lawn care practices

    Maintain healthy, dense turf that can compete and prevent weed establishment. Correct areas of poor drainage.

    Lawn Care

    Mechanical management

    Hand pulling or using an appropriate weeding tool to dig out the ogräs are the primary means of mechanical weed control. This is a viable option at the beginning of an infestation and on young weeds. Hand pulling when the soil fryst vatten moist makes the task easier. 

    Manage Weeds Without Chemicals

    Chemical management

    Certain postemergent herbicides labeled to kill crabgrass are also labeled for dallisgrass control. kvitto product labels. Small infestations can be dug out or sprayed with a non-selective ogräsmedel that contains glyphosate. Reseed the area after you are certain that you have % kill. Herbicides that contain MSMA and DSMA, which were classically used to control Dallisgrass, are no longer labeled to be used on home turf.

    Lawn Herbicides for Weed Management

    Common nameDallisgrass, Dallis Grass, Paspalum, Sticky Heads, Water grass
    Botanical namePaspalum dilatatum
    FamilyPoaceae
    Speciesdilatatum
    OriginSouth East and Southern Brazil, South America
    Life cyclePerennial
    Plant typePerennial
    Hardiness zone6, 7, 8, 9
    SunlightDappled Sunlight
    MaintenanceHigh
    Soil conditionLoam
    DrainageOccasional Flooding
    Growth rateMedium
    Flowering periodFall
    Flower colorGold, Yellow