Devil thorns, or Tribulus terrestris, can invasion lawns with sharp seed heads and persistent roots. This guide explains practical, step-by-step methods suitable for American lawns to control and reduce devil’s thorn growth while protecting existing grass.
Readers will learn why certain tools and products work best, how to apply them safely, and what habits prevent reinfestation. The approach blends mechanical removal, selective herbicides, and preventive lawn care to keep turf healthier and less inviting to these prickly weeds.
Quick Answer
Use a targeted weed remover and a selective lawn weed killer to physically extract the plants and kill new sprouts. Start with soil-safe tools to pull up root systems, then treat with a spray labeled for prickly weeds. Maintain healthy mowing, proper watering, and routine fertilization to discourage reemergence.
What You’ll Need
- Tribulus terrestris lawn weed killer
- devil’s thorn lawn weed remover tool
- spiny burr weed puller for lawn
- lawn weed control spray for prickly weeds
- heavy-duty manual weed puller for grasses
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Ortho GroundClear Super Weed & Grass Killer1, Trigger Sprayer, Kills the Toughest Weeds and Grasses to the Root so They Don’t Come Back, 1 gal. |
Before You Start
Assess the lawn area to identify all devil thorn plants and estimate affected patches. Wear gloves and eye protection when handling thorny weeds, as contact can cause skin irritation. Water the lawn a day before pulling to soften soil, which reduces root breakage. Time your efforts for a dry, mild day to minimize soil compaction and maximize hoe-out efficiency. Test any spray on a small, inconspicuous area first to confirm no turf damage.
Step-By-Step: How To Remove Devil Thorns From Grass
- Put on protective gloves and safety glasses before handling weed plants.
- Inspect the lawn to map all patches of devil thorn and categorize by size.
- Water the lawn lightly the evening before pulling to soften soil and roots.
- Use a devil’s thorn lawn weed remover tool or spiny burr weed puller for lawn to loosen the root ball at the base of each plant.
- Grasp the weed firmly at ground level and pull steadily to extract the root without breaking it.
- Place removed weeds in a trash bag to prevent seed dispersal; do not compost.
- Apply a lawn weed control spray for prickly weeds to the surrounding area after removal to kill remaining roots and new sprouts.
- Water lightly after spraying to help the product penetrate, following label directions for timing.
- Repeat the process in successive weeks for any resprouts or newly germinating seeds.
- Monitor the lawn weekly, especially during warm, moist months when devil thorn tends to spread.
- Consider reseeding or overseeding thin patches with compatible turfgrass to improve crowding and reduce future establishment.
- Maintain a healthy mowing height and regular fertilization to strengthen grass vigor against weeds.
Troubleshooting
| Symptom | Likely Cause | Fix | Prevention |
|---|---|---|---|
| Leaves look damaged after treatment | Over-application or spray drift | Reapply only as directed and on targeted areas | Shield neighboring grass during application |
| Weed returns after a week | Undetected roots or seeds | Revisit affected zones and pull missed plants | Increase monitoring and timely reapplication |
| Soil remains damp for days | Overwatering or heavy thatch | Adjust watering schedule; remove excess thatch | Rely on proper irrigation practices |
| Stunted turf in treated area | Product phytotoxicity or herbicide overuse | Pause applications and consult label guidance | Use the recommended concentration and timing |
Common Mistakes
- Pulling weeds with incomplete root systems, leading to rapid regrowth
- Using nonselective weed killers on desirable grasses
- Underestimating the spread by leaving debris that contains seeds
- Applying herbicides in extreme heat or drought, increasing turf damage risk
- Neglecting lawn health factors such as mowing height and soil compaction
Tips For Best Results
- Choose a heavy-duty manual weed puller for grasses for stubborn, deep roots.
- Time treatments when long days follow a light watering, reducing plant stress.
- Combine mechanical removal with a targeted spray for a two-pronged approach.
- Overseed bare areas to promote dense turf that naturally hampers weed establishment.
- Keep a consistent mowing schedule at the recommended height for your grass type.
Call A Professional
Seek professional help if:
- Large infestations cover more than a third of the lawn
- There’s significant turf damage from herbicides or soil conditions
- Weed growth persists after multiple treatment cycles
- There is uncertainty about turf type and appropriate products
FAQ
What is the best tool to remove devil thorn weeds?
The devil’s thorn lawn weed remover tool and the spiny burr weed puller for lawn are effective for extracting deep roots with minimal soil disruption.
Can I use any weed killer on my lawn?
Use a spray labeled for prickly or burr weeds and ensure it is safe for your grass species.
How soon will I see results after treatment?
Results vary, but visible improvement often appears within a couple of weeks, with continued management as needed.
Should I reseed after removal?
Yes, reseeding thin areas helps fill gaps and reduces future weed space.
Is it necessary to remove every weed plant?
Removing most plants and treating regrowth typically yields the best long-term control.
Buying Guide
When selecting tools and products to combat devil thorn in grass, consider these key buying factors:
- Size and turf type compatibility: Choose tools designed for your lawn area and grass species to avoid turf damage.
- Noise and ease of use: Manual tools are quiet and simple for DIY use, while sprays should be easy to apply with stable sprayers.
- Energy efficiency and impact: Manual tools require no power; sprays rely on chemical formulation rather than energy consumption.
- Controls and label clarity: Look for clear usage instructions, safety warnings, and targeted action on prickly weeds.
- Placement and coverage: Consider the size of the yard; wider coverage products save time on large lawns.
In practice, homeowners may pair a heavy-duty manual weed puller for grasses with a targeted lawn weed control spray for prickly weeds to balance mechanical removal and chemical control. Assess your lawn’s patchiness, moisture level, and grass type to choose the best combination. Would you like product-specific recommendations based on your grass species and climate? A landscaper can tailor a plan that aligns with local conditions and lawn goals.