Whether you’re a professional landscaper or a homeowner, understanding what weeds sulfentrazone can target helps ensure efficient weed control.
This selective herbicide works by inhibiting an enzyme vital for chlorophyll production, effectively killing broadleaf weeds and sedges. Its ability to work both pre-emergence and early post-emergence makes it highly versatile.
Below are the 10 best weeds that are effectively controlled by sulfentrazone.
What Weeds Are Controlled By Sulfentrazone? Find 10 Best
1. Yellow Nutsedge
Yellow nutsedge is one of the most notorious sedges that invade lawns, gardens, and crop fields. Sulfentrazone is particularly effective because it penetrates the soil and targets the weed’s underground tubers. This helps stop regrowth and suppresses future outbreaks.
In warm-season turfgrasses, yellow nutsedge often spreads aggressively. Sulfentrazone offers a residual control that keeps these areas weed-free for extended periods. It’s especially useful in poorly drained soils where nutsedge thrives.
Consistent application timing ensures total knockdown of existing plants and prevention of new ones. It works best in conjunction with cultural practices such as proper mowing height and irrigation control.
Pros:
• Long-lasting control
• Effective on tubers
• Safe on turf
• Post-emergent action
• Prevents regrowth
• Rainfast quickly
• Minimal resistance
Cons:
• Needs precision timing
• May stress turf
• Not organic
2. Purple Nutsedge
Purple nutsedge is another invasive sedge species closely related to yellow nutsedge. It thrives in hot climates and poor-draining soils, making it a common nuisance in southern lawns. Sulfentrazone attacks both foliage and underground tubers effectively.
Once absorbed, it inhibits cell membrane formation, quickly causing the plant to wilt and die. Sulfentrazone provides residual activity that keeps new sedges from emerging for weeks. For dense infestations, reapplication may be necessary.
Its compatibility with other herbicides allows for tank-mixing, enhancing control of multiple weed types. Always follow label directions for maximum results.
Pros:
• Rapid knockdown
• Long residual
• Controls tubers
• Heat-tolerant use
• Tank-mix safe
• Lawn safe
• Easy application
Cons:
• Not selective in flowers
• May need retreatment
• Higher cost
3. Green Kyllinga
Green kyllinga is a low-growing sedge with mat-forming tendencies, often overtaking lawns and athletic fields. It reproduces rapidly through rhizomes and seeds, forming dense patches. Sulfentrazone interferes with the weed’s metabolic process, leading to quick leaf burn and root death.
Pre-emergent applications in spring and post-emergent sprays in summer can drastically reduce infestations. It is especially beneficial when used in integrated turf care plans. Persistence is key, as kyllinga tends to rebound.
Moist, compacted soils are breeding grounds for this weed, so improving drainage helps long-term control. Combine with regular mowing for best outcomes.
Pros:
• Strong leaf burn
• Pre-emergent use
• Root suppression
• Prevents spread
• Works fast
• Reduces seed set
• Turf-friendly
Cons:
• Requires follow-up
• Less effective alone
• Not for ornamentals
4. Spurge
Spurge is a common summer annual weed found in sidewalks, driveways, and lawns. It thrives in compacted soils and hot weather, making it tough to manage without chemical control. Sulfentrazone disrupts photosynthesis in the plant, leading to desiccation and death.
Early post-emergence applications are most effective before the plant sets seed. A single dose can suppress large populations in urban areas. It is an excellent choice for low-maintenance environments.
You can enhance results by reducing soil compaction and mulching affected areas. Repeat application may be needed in extreme cases.
Pros:
• Easy to apply
• Fast-acting
• Seed control
• Heat-resistant
• Urban friendly
• Long residual
• Combines well
Cons:
• Not selective
• Can stain surfaces
• Frequent re-treatments
5. Wild Garlic
Wild garlic is a perennial weed with a strong onion-like odor, common in lawns and pastures. Sulfentrazone targets the bulb and shoots simultaneously, offering effective long-term control. Its systemic action helps move the chemical through the plant.
Apply when leaves are green and actively growing for best absorption. Mowing prior to spraying improves uptake and enhances kill rate. Pairing with other herbicides boosts spectrum control.
This weed’s underground bulblets make it especially persistent, so monitor regrowth closely. Control improves with annual applications.
Pros:
• Targets bulbs
• Systemic action
• Lawn-safe
• Works in spring
• Multi-season use
• Great absorption
• Minimal runoff
Cons:
• Odor persists
• Bulbs regrow
• Needs combo mix
6. Dandelion
Dandelions are broadleaf weeds known for their fluffy seed heads and deep taproots. Sulfentrazone delivers effective control by inhibiting chlorophyll formation, leading to yellowing and plant death. It works best when applied to young, actively growing weeds.
Use in early spring or fall to disrupt the plant before it can spread seeds. The herbicide penetrates deeply to kill roots and reduce chances of reemergence. Mowing post-treatment helps prevent flowering.
Its broad-spectrum action makes it suitable for parks, golf courses, and residential lawns. Pairing with other systemic herbicides improves root kill.
Pros:
• Deep root kill
• Controls seedlings
• Residual power
• Safe on turf
• Broad coverage
• Seasonal timing
• Low volatility
Cons:
• Doesn’t prevent seeds
• Taproot persistence
• Needs reapplication
7. Clover
Clover is a low-growing, nitrogen-fixing plant that can dominate thin lawns. Sulfentrazone offers a rapid and effective solution by causing leaf desiccation and growth stunting. Clover often recedes within days of treatment.
Apply during active growth periods in spring or early summer. Multiple applications may be necessary for thick infestations. Keep grass thick and healthy to prevent clover resurgence.
Combining with post-emergent herbicides boosts results and provides better root absorption. Make sure not to mow immediately after application.
Pros:
• Quick visual results
• Lawn compatible
• Reduces spread
• Post-emergent use
• Combo-friendly
• Works on patches
• Targets roots
Cons:
• Repeat use needed
• No seed block
• May harm legumes
8. Plantain
Plantains are tough, rosette-forming weeds with broad leaves and strong roots. Sulfentrazone weakens the leaf structure by interrupting cellular respiration, causing collapse. The result is quick browning and rot.
Apply during early development for optimum effectiveness. Repeated treatment may be needed for mature plants with thick roots. Aerating lawns can reduce future outbreaks.
Sulfentrazone works well in both cool and warm-season grasses. Ideal for sports fields and residential use.
Pros:
• Visual wilting
• Tough root kill
• Works fast
• Easy to spray
• Turf-safe
• Flexible timing
• Effective in sun
Cons:
• Deep roots persist
• Needs moisture
• Doesn’t block seeds
9. Wild Violet
Wild violet is a shade-loving perennial that spreads via underground rhizomes. It’s particularly tough to eliminate due to its waxy leaves and strong root systems. Sulfentrazone penetrates leaf cuticles and slowly kills the entire plant.
Treatment works best during mid-spring and early summer. Multiple applications spaced weeks apart may be needed. Don’t mow the area before or shortly after application.
Combining sulfentrazone with triclopyr increases effectiveness and reduces regrowth. Use in landscaped areas cautiously to avoid damaging ornamentals.
Pros:
• Penetrates waxy leaves
• Controls rhizomes
• Long kill window
• Compatible with mixes
• Safe on turf
• Great for shade
• Low odor
Cons:
• Hard to kill
• Needs retreatment
• Slower action
10. Ground Ivy
Ground ivy, or creeping Charlie, invades shady, moist areas with its vine-like spread. Sulfentrazone works by damaging its creeping stems and dense foliage. This leads to plant dehydration and eventual root failure.
Apply when the plant is actively growing and not under drought stress. Reapplications are often needed to eradicate entrenched colonies. Mow before spraying to expose stems.
A tank mix with dicamba or triclopyr enhances control and provides longer protection. Best results occur in late spring or early fall.
Pros:
• Hits runners
• Fast dehydration
• Reduces spread
• Lawn approved
• Shade effective
• Combo compatible
• Minimal drift
Cons:
• Multi-step needed
• May brown turf
• Slow recovery
FAQs About Sulfentrazone Weed Control
1. How long does sulfentrazone take to work?
Sulfentrazone usually shows visible effects within 24-48 hours. Full control can take 1-2 weeks depending on the weed type.
2. Is sulfentrazone safe for all lawns?
It is safe for most warm and cool-season grasses, but always check the label for compatibility with your turf variety.
3. Can sulfentrazone be mixed with other herbicides?
Yes, it is commonly tank-mixed with herbicides like prodiamine, triclopyr, or dicamba for broader weed control.
4. Is it rainfast after application?
Yes, sulfentrazone becomes rainfast typically within 1-4 hours of application depending on formulation.
5. Does it control crabgrass?
Sulfentrazone alone does not control crabgrass well. Combine with other pre-emergents like dithiopyr or prodiamine for better results.
6. Can I use it in vegetable gardens?
No, sulfentrazone is not labeled for edible crops. Use only in ornamental landscapes or turf areas.
7. How often should I apply it?
Apply as needed based on label instructions, usually not more than twice per season to avoid overuse.
Conclusion
Sulfentrazone is a highly effective herbicide for managing a broad range of tough weeds including sedges, broadleaves, and vine-forming nuisances. Its quick action, long residual effect, and compatibility with other herbicides make it a versatile solution for lawn and landscape weed control. From dandelions to purple nutsedge, sulfentrazone handles it all when applied correctly and at the right growth stages.
If you are struggling with persistent weeds in your lawn or turfgrass area, sulfentrazone could be the ideal chemical control. Just remember to follow all label directions for safety and environmental protection.
Ready to take control of your lawn? Try sulfentrazone-based herbicides today and say goodbye to stubborn weeds. Always consult with your local extension office or lawn care professional to ensure proper use and results