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can you use weed beater ultra on new seeded lawn

Bonide Weed Beater Ultra Ready To Use

Bonide Weed Beater Ultra Ready To Use is formulated to be the absolute broadleaf weed killer for lawns. This has a new chemical mixture that is especially efficient and effective on more that 200 tough and hard-to-kill weeds, right to the roots. It also provides visible results within just 24 hours and has excellent cold weather or low-temperature performance down to 45 degrees Fahrenheit extending application interval to early spring and even up to late fall, when bad weeds are most receptive. You may reseed your lawn in as early as 2 weeks after application. This is not available for sale in Arkansas and Hawaii.

Features and Specs

Active Ingredient Carfentrazone-ethyl 0% Dicamba 0.02% MCPA, 2-ethylhexyl ester 0.34% Mecoprop-P 0.07%
Target pests Broadleaf weeds including but not limited to Annual yellow sweetclover, Aster, Austrian fieldcress, Bedstraw, Beggarsticks, Betony Florida, Bindweed field, Bird vetch, Bitter witercress, Bittercress hairy, and others
See Label for complete list
For use in Lawns: Kentucky bluegrass, Perennial ryegrass, Tall fescue, Red or fine leaf fescues, mixtures of cool species, Common bermudagrass, Hybrid bermudagrass, St. Augustinegrass (excluding ‘Floratam’), Zoyziagrass
Application Shake the container well – Direct the spray to the target weeds to provide uniform coverage of the upper lead surfaces
Apply to the point of runoff only – Excessive spraying may injure lawns
Pet safe Yes, if used as directed on Label
Time to Kill Results in just 24 hours
Shipping Weight 2.38 lbs
Manufacturer Bonide (Mfg. Number: 307)
UPC 037321003076
EPA Registration 2217-865-4


This contains four active ingredients including carfentrazone-ethyl that broaden the spectrum of weed control.

  • Excellent postemergent activity with proven performance for broadleaf weed control in turfgrass.
  • Superior cool weather performance.
  • Rapid and effective weed control for common and troublesome weed species in turfgrass, e.g. spurge, pennywort (dollarweed), dandelion, and white clover.
  • Injury to weeds can be noticed within hours of the application and plant death can occur within 7-14 days.


On Lawns:

Use to spot treat broadleaf weeds commonly found in cool season and warm season grasses such as: Kentucky bluegrass, Perennial ryegrass, Tall fescue, Red or fine leaf fescues, Mixtures of cool season species, Common bermudagrass, Hybrid bermudagrass, St. Augustinegrass (excluding 'Floratam'), Zoysiagrass.


For best results, treat weeds in the spring and the fall when weeds are actively growing. However, this is effective any time during the growing season.

  • Do not apply when air temperatures are above 85 F as lawn injury can occur.
  • Hard-to-kill weeds may require a repeat application in 3 weeks
  • Do not water lawn within 12 hours of application. If rainfall occurs within 12 hours after application, retreatment may be necessary.
  • Do not apply to newly seeded lawns until after the second mowing.
  • Delay application to newly sodded, plugged, or sprigged lawns until new grass has been mowed four times.
  • Treated areas may be reseeded 2 weeks after application.
  • Applications to dormant bermudagrass, zoysiagrass, and St. Augustinegrass may be used to control actively growing broadleaf weeds.


Annual yellow sweetclover, Aster, Aster (white prairie, heath, wild), Austrian fieldcress, Bedstraw, Bedstraw (catchweed, pineywoods), Beggarticks, Beggarweed (creeping), Betony (Florida), Bindweed, Bindweed (field, hedge), Bitter wintercress, Bittercress (hairy), Bitterweed, Black medic, Black-eyed Susan, Bloodflower milkweed, Blue lettuce, Brassbuttons, Bristly oxtongue, Broomweed, Burclover, Burdock, Burweed, Buttercup, Buttercup (bulbous, creeping), Carolina geranium, Carpetweed, Catnip, Chickweed (common, mouseear), Chicory, Cinquefoil, Cinquefoil (rough), Clover, Clover (crimson, hop, red, strawberry, sweet, white), Cockle, Cocklebur, Cocklebur (Oriental, spiny), Common mullein, Compassplant, Creeping Jenny (Creeping Charlie), Cudweed, Cudweed (purple), Daisy (English, oxeye), Dandelion, Dayflower, Dichondra, Dock, Dock (broadleaf, curly, smooth), Dogbane, Dogfennel, Dollarweed, Elderberry, False dandelion (*spotted catsear & common catsear), Falseflax, Fiddleneck, Filaree (redstem, whitestem) Fleabane (daisy, hairy, rough) Florida pusley, Frenchweed, Galinsoga, Galinsoga (smallflower) Goathead, Goldenrod, Ground ivy, Groundsel, Gumweed, Hawkweed, Hawkweed (orange), Healall, Heartleaf drymary, Hemp, Henbit, Hoary cress, Innocence (Blue-eyed Mary), Jimsonweed, Knawel, Knotweed (prostrate) Kochia, Lambsquarters, Lespedeza, Lespedeza (common), Mallow, Mallow (common), Matchweed, Mexicanweed, Morningglory,Morningglory (woolly), Mugwort, Mustard, Mustard (black, hedge, tansy, tumble, white, wild), Nettle, Nettle (bull, burning, dead, horse, stinging, tall) Old world diamond flower, Oxalis (*yellow woodsorrel & creeping woodsorrel), Parsley-piert, Parsnip, Pearlwort, Pennsylvania smartweed, Pennycress, Pennywort (*dollarweed), Peppergrass (pepperweed), Pigweed, Pigweed (prostrate, redroot, Russian, smooth, tumble) Pineappleweed, Plains coreopsis (tickseed), Plantain, Plaintain (blackseed, bracted, broadleaf, buckhorn, hoary, narrowleaf, slender, woolly) Poison ivy, Poison oak, Pokeweed, Poorjoe, Prickly lettuce, Prickly sida, Puncturevine, Purslane, Purslane (common), Ragweed, Red sorrel (*sheep sorrel), Redweed, Scarlet pimpernel, Shepherd’s purse, Sowthistle, Sowthistle (spiny), Spanish needles, Spiny amaranth, Spurge (prostrate, spotted) Spurweed, Strawberry (India mock)Sunflower (false, prairie) Tansy ragwort, Tanweed, Thistle, Thistle (blessed, bull, Canada, musk, Russian, Scotch) Trailing Crownvetch, Velvetleaf, Venice mallow, Veronica (*corn speedwell), Vervain (blue, hoary, prostrate, tall) Vetch (bird, milk, narrowleaf, wild) Virginia buttonweed, Virginia creeper, Virginia pepperweed, Water pennywort, Wavyleaf bullthistle, Western clematis, Western salsify, Wild buckwheat, Wild carrot, Wild four-o’clock, Wild garlic, Wild geranium, Wild lettuce, Wild marigold, Wild onion, Wild parsnip, Wild radish, Wild rape, Wild strawberry, Wild sweet potato, Wild violet, Woolly croton, Wormseed, Yarrow, Yellow rocket, Yellowflower pepperweed

Weed Beaterâ„¢ By Bonide

Weed Beater™ By Bonide
Broadleaved Lawn Weed Killer

Systemic action kills roots and all. Controls a broad range of noxious weeds in lawn..Contains Trimec®. One quart treats 8,000 sq. ft. Rainfast upon drying.

Weed Beater™ will kill most any broad leaved weed you will normally find in the turf of the home landscape (more than 200 weeds). Here are some examples;

Weeds Easy To Kill By Weed Beater
Bedstraw Black Medic Buckhorn
Chickweed Clover Dandelion
Knotweed Lambs Quarters Peppergrass
Plantain Purslane Ragweed
Shepherds purse Will Lettuce

Hard To Kill Weeds May Take Two Applications
Chicory Dock Ground Ivy
Mallow Morning Glorly Oxalis
Pigweed Poison Ivy Poison Oak
Sheep Sorrel Speedwell Spurge
Wild Carrot Wild Onion Yarrow

A Stronger Version

Bonide 307 Weed Beater Ultra RTU

  • Ready to use ultra weed beater
  • Systemic broadleaf weed killer for lawn & turf
  • Effective on over 200 hard to kill weeds
  • Extends application window to early spring & to late fall

New chemistry that is especially effective on over 200 hard to kill weeds, right to the roots. Visible results in just 24 hours. Rainfast once dry. Reseed in just 2 weeks. Superior cool weather performance, down to 45 F, extends application window to earl

When To Use This Product
1. Spray during the growing season when weeds are actively growing.
2. On new lawns, wait until the grass has reached a height of 2 inches before making an overall spray treatment. However, a “spot-treatment” may be made at any time with a small pressure sprayer. Wait 3 weeks before seeding or plant stolons, plubs, or sprigs.
3. Poor weed control may result if spray is applied during drought or just before rain.
4. For best results, mow before treating.
5. Do not water lawn within 24 hours after treatment.

This product comes as a bottle of concentrate or as a bottle to be attached to a hose end sprayer.

If using the concentrate you will need a Hand Pump Sprayer. The job is more effective if you use a spreader sticker with the insecticide. After using an insecticide in a sprayer you may wish to use a commercial cleaner to make sure there is no residue for when you use the sprayer again, perhaps with a different pesticide.