Tag Archives: Selective Herbicide

Weeds are growing in my newly seeded lawn …….. what to do?

When planting a new lawn from seed (in particular), soil is normally added, amended, cultivated and/or aerated to provide optimum seed-growing conditions.  Lightly cultivated soil is critical for new grass seed germination and eventual plant/root development, but also happens to be the “open door” needed for any/all competing nearby weed seed to flourish.

Here are a few precautions that can be taken to lessen the possibility of unwanted weed growth within your improved soil/new lawn area.

1). If attempting to grow grass within an area that already has a large population of weeds (broadleaf, grassy or grass-like weeds) consider applying a selective or non-selective herbicide to all unwanted growing vegetation a few weeks before soil preparation/seed planting takes place to completely eliminate the problematic weeds found (roots and all).

2). Plant grass seed in late summer/early fall to avoid increased spring season weed seed competition.

3). Use a premium blend of site-specific grass seed that contains 0% weed/noxious weed seed.

4). Consider mechanical slit-seeding (when existing site and soil conditions allow) to plant new grass seed directly into the soil through an existing stand of turf grass.

5). When planting grass seed in large lightly cultivated soil areas, consider covering all newly planted areas with seed germination blanket to lessen the exposure to wind-blown weed seed, feeding birds, etc..

If all precautions were taken, but a few problematic broadleaf weeds still happened to grow within your newly seeded areas, no problem at all.  Here are a few simple steps that can be taken to eradicate the unwanted weeds found growing in your prized new lawn.  If a small area, just manually pull any/all weeds found as they appear.  If a larger area, spot treat the visible broadleaf weed foliage with a selective liquid herbicide to completely eliminate the weed (root and all).  As lawn density builds over time, weed competition will become less problematic due to less bare soil exposure.

Just remember, planting or repairing a lawn from seed is not a quick proposition and without it’s fair share of short term challenges (maintenance, irrigation, environmental conditions, etc.).  However, it is our continued opinion that planting a site specific lawn from premium disease resistant grass seed is the very best way to grow a healthy stand of turf grass that will eventually prove worth the wait.  Please consider Pacocha Landscaping Services, Inc. for your next lawn improvement project.  Thank you for visiting our site and have a great day!

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What is this so called nimblewill you speak of?

Nimblewill is a warm season perennial grass that has a tendency to grow in patches and is occasionally found growing in poorly drained soil and lightly shaded lawn areas.  Nimblewill is considered a weed grass and is never planted on purpose.  Nimblewill can spread by seed and/or by it’s lightly rooted spreading stems (stolons).

pacocha-nimblewill-growing-in-lawn

You can easily notice a lawn that has nimblewill growing in it during the early spring and late fall months (in particular).  Once cooler temperatures and first frost occurs, nimblewill will die back to the ground and change from it’s normal bluish/green summer color to a straw-like tan color.

pacocha-patches-of-dormant-nimblewill-grass

Once identified and only when the target plant is actively growing (May thru August), nimblewill can be completely eliminated by spot applying a selective or non-selective herbicide.  Shortly after the treated nimblewill areas have completely died back (14 to 21 days post non-selective herbicide application), any/all necessary steps can be taken to complete the final lawn repairs needed (additional top soil, grass seed, etc.).

Please be sure to contact Pacocha Landscaping Services, Inc. with any questions or service requests you may have.  Thank you for visiting our site and have a great day!

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Boo……. THISTLE …….. Boo ……….. GO AWAY ALREADY!!!

Anyone that has had a run-in with thistle around their yard knows how tough this broadleaf weed is and how difficult it is to completely eradicate.  With it’s deep and wide spreading root mass and sharp pointed prickly foliage, it will not pull out of the ground easily (or completely) without a fight.  Pacocha - Thistle Foliage Close UpThe only effective and proven way we have found to completely kill mature thistle (in particular) is by applying a selective or non-selective (site dependent) systemic herbicide directly to it’s foliage.  Often times several spot herbicide applications are needed over the course of many growing seasons (3 to 5 years) to completely kill thistle found growing in a regularly maintained lawn (in particular).Pacocha - Large Thistle Found Growing in Bed Along Walkway

Tips on controlling and keeping thistle out of your lawn and landscape.

  • Thistle can have a biennial or perennial life cycle (specific thistle variety dependent)
  • Never plant a new lawn or create new gardens without first completely eliminating any/all resilient thistle plants first.
  • When applying a systemic herbicide, allow plenty of time (4-8 weeks) for the liquid herbicide (selective or non-selective – site dependent) to translocate through the entire plant (from foliage to root mass) thus ensuring a complete kill.
  • It is much easier to chemically eradicate thistle when therePacocha - Thistle Growing in Lawn are no other desirable plants (manicured turf grass, ground cover, vegetables, etc.) located in close proximity to the unwanted weed.
  • Always eradicate thistle found in lawn areas AND adjacent plant bed spaces.  Since thistle spreads by seed, rhizome and/or cut root segments (variety of thistle dependent) it will continue to spread anywhere it can unless totally eliminated.
  • Thistle seed can remain viable in the soil for up to 20 years!!
  • If you have a bird feeder in your yard, try to avoid using bird feed that includes thistle seed.
  • Continue to monitor your property for young thistle plants and try to manually remove them whenever possible.  If manual removal is no longer a feasible option, spot treat them with a systemic selective (lawn areas) or non-selective (areas where no other desirable vegetation is located) herbicide before the plant is allowed to flower and set seed.Pacocha - Multiple Thistle Growing in Lawn
  • Canada thistle (in particular) is considered to be a noxious perennial weed in Illinois and should be controlled by the land owner whenever found (Illinois Noxious Weed Law – 505 ILCS 100/)Pacocha - Thistle Growing in Lawn Adjacent to Plant Bed

Please be sure to contact Pacocha Landscaping Services, Inc. with any questions you may have or to schedule an on-site consultation.  Thank you for visiting and have a great day!

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