Weed Stopper

U.S. EPA registered pesticide info

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Label & SDS

EPA Label: link

Registration information

U.S. EPA Registration number: 54705-5
U.S. EPA Status: CANCELLED

Description

'Weed Stopper' is an herbicide terrestrial. Its Federal EPA registration number is: 54705-5. It was originally approved by EPA on 26 Nov 1996. Its registration got cancelled on 11 Aug 2022. It has a 'Caution' signal word. It has the following active ingredients: Oryzalin. It's approved for 190 sites including acacia, agave, almond, andromeda, apple, apricot, arborvitae, ash, aster, and avocado. It is also approved for 73 pests and pest groups including but not limited to annual bluegrass, annual sowthistle, barnyardgrass, bittercress, black mustard, black nightshade, brachiaria, bristlegrass, browntop panicum, and buffalograss.

Original registration date:

26 Nov 1996

Cancellation date:

11 Aug 2022

Alternative names:

MASTER NURSERY WEED STOPPERAlternate
WEED IMPEDEAlternate
WEED STOPPERActive

Registrant:

LAWN AND GARDEN PRODUCTS, INC.
Address:
Po Box 35000
Fresno, CA 93745

Active ingredients:

Oryzalin 40.4%
Other ingredients 59.6%

Signal word:

Caution

Product type:

Herbicide Terrestrial

Formulation:

Emulsifiable Concentrate

Registered target pests:

Annual bluegrass (preemergence)
Annual sowthistle (preemergence)
Barnyardgrass (preemergence)
Bittercress (preemergence)
Black mustard (preemergence)
Black nightshade (preemergence)
Brachiaria (preemergence)
Bristlegrass (preemergence)
Browntop panicum (preemergence)
Buffalograss (preemergence)
Carpetweed (preemergence)
Climbing milkweed (preemergence)
Coast fiddleneck (preemergence)
Coloradograss (preemergence)
Common chickweed (preemergence)
Common groundsel (preemergence)
Common mallow (preemergence)
Common purslane (preemergence)
Common ragweed (preemergence)
Crowfootgrass (preemergence)
Desert rockpurslane (preemergence)
Fall panicum (preemergence)
Field sandbur (preemergence)
Filaree (preemergence)
Florida purslane (preemergence)
Florida pusley (preemergence)
Foxtail (preemergence)
Giant foxtail (preemergence)
Goosegrass (preemergence)
Green foxtail (preemergence)
Henbit (preemergence)
Horseweed (preemergence)
Italian ryegrass (preemergence)
Johnsongrass (seedling) (preemergence)
Junglerice (preemergence)
Ladysthumb (preemergence)
Lambsquarters (preemergence)
Large crabgrass (preemergence)
Little barley (preemergence)
London rocket (preemergence)
Mexican clover (preemergence)
Mexican lovegrass (preemergence)
Morningglory (preemergence)
Orcutt lovegrass (preemergence)
Oxalis (preemergence)
Pigeongrass (preemergence)
Pigweed (preemergence)
Prickly lettuce (preemergence)
Prickly sida (preemergence)
Prostrate knotweed (preemergence)
Prostrate spurge (preemergence)
Puncturevine (preemergence)
Pusley (preemergence)
Red sprangletop (preemergence)
Robust foxtail (preemergence)
Shepherdspurse (preemergence)
Signalgrass (preemergence)
Silver crabgrass (preemergence)
Smartweed (preemergence)
Smooth crabgrass (preemergence)
Southwestern cupgrass (preemergence)
Spotted spurge (preemergence)
Spreading panicgrass (preemergence)
Teaweed (preemergence)
Texas panicum (preemergence)
Velvetleaf (preemergence)
Watergrass (preemergence)
Wheat (volunteer) (preemergence)
Wild mustard (preemergence)
Wild oat (preemergence)
Witchgrass (preemergence)
Yellow foxtail (preemergence)
Yellow woodsorrel (preemergence)

Registered target sites:

Acacia (soil treatment)
Agave (soil treatment)
Almond (ornamental) (nonbearing)
Andromeda (soil treatment)
Apple (ornamental) (nonbearing)
Apricot (ornamental) (nonbearing)
Arborvitae (soil treatment)
Ash (soil treatment)
Aster (soil treatment)
Avocado (ornamental) (nonbearing)
Azalea (soil treatment)
Baby's-breath (soil treatment)
Bahiagrass (ornamental turf) (soil treatment)
Barberry (soil treatment)
Bellflower (soil treatment)
Bermudagrass (ornamental turf) (soil treatment)
Birch (soil treatment)
Bird-of-paradise (soil treatment)
Blazing star (soil treatment)
Bleeding-heart (soil treatment)
Bottlebrush (soil treatment)
Bougainvillea (soil treatment)
Boxwood (soil treatment)
Bridal wreath spirea (soil treatment)
Broom (soil treatment)
Brush-cherry (soil treatment)
Buffalograss (ornamental turf) (soil treatment)
Caladium (soil treatment)
California-laurel (soil treatment)
Capeweed (soil treatment)
Carob (ornamental) (soil treatment)
Carpet bugle (soil treatment)
Carrotwood (soil treatment)
Centipedegrass (ornamental turf) (soil treatment)
Century plant (soil treatment)
Cherry (ornamental) (nonbearing)
Cherry laurel (soil treatment)
Chrysanthemum (soil treatment)
Cinquefoil (soil treatment)
Citrus (ornamental) (nonbearing)
Citrus (ornamental) (soil treatment)
Cleyera japonica (soil treatment)
Coneflower (soil treatment)
Coreopsis (soil treatment)
Cotoneaster (soil treatment)
Cottonwood (soil treatment)
Coyotebrush (soil treatment)
Crabapple (ornamental) (soil treatment)
Cranberry (ornamental) (nonbearing)
Crape myrtle (soil treatment)
Currant (ornamental) (nonbearing)
Cypress (soil treatment)
Daisies (soil treatment)
Daylilies (soil treatment)
Deutzia (soil treatment)
Dogwood (soil treatment)
Easter cactus (soil treatment)
Elm (soil treatment)
Escallonia (soil treatment)
Eucalyptus (soil treatment)
Euonymus (soil treatment)
False cypress (soil treatment)
False spirea (soil treatment)
Fatshedera (soil treatment)
Feathery cassia (soil treatment)
Ficus (soil treatment)
Fig (ornamental) (nonbearing)
Filbert (ornamental) (nonbearing)
Fir (soil treatment)
Firethorn (soil treatment)
Forsythia (soil treatment)
Gardenia (soil treatment)
Gazania (soil treatment)
Geranium (soil treatment)
Geum (soil treatment)
Ginkgo (soil treatment)
Gladiolus (soil treatment)
Glossy abelia (soil treatment)
Golden-rain tree (soil treatment)
Grapevines (ornamental) (nonbearing)
Heavenly bamboo (soil treatment)
Hibiscus (soil treatment)
Holly (soil treatment)
Honeylocust (soil treatment)
Honeysuckle (soil treatment)
Hopeseed bush (soil treatment)
Hosta (soil treatment)
Iceplant (soil treatment)
Impatiens (soil treatment)
Iris (bulbous) (soil treatment)
Iris (soil treatment)
Ivy (soil treatment)
Japanese cryptomeria (soil treatment)
Japanese spurge (ground cover) (soil treatment)
Juniper (soil treatment)
Kiwi (ornamental) (nonbearing)
Leucothoe (soil treatment)
Lilac (soil treatment)
Lily-of-the-nile (soil treatment)
Linden (soil treatment)
Lydia woadwaxen (soil treatment)
Magnolia (soil treatment)
Mahogany (soil treatment)
Manzanita (soil treatment)
Maple (soil treatment)
Marigold (soil treatment)
Mock-orange (soil treatment)
Mondo grass (ground cover) (soil treatment)
Moss rose (soil treatment)
Mountain-laurel (soil treatment)
Mulberry (soil treatment)
Myoporum (ground cover) (soil treatment)
Myrtle (soil treatment)
Nectarine (ornamental) (nonbearing)
New jersey tea (soil treatment)
Oak (soil treatment)
Oleander (soil treatment)
Olive (ornamental) (nonbearing)
Oregongrape (soil treatment)
Ornamental bulbs (soil treatment)
Ornamental flowering plants (soil treatment)
Ornamental fruit trees (nonbearing)
Ornamental ground covers (soil treatment)
Ornamental nut trees (nonbearing)
Ornamental perennials (soil treatment)
Ornamental trees (soil treatment)
Ornamental turf (soil treatment)
Osmanthus (soil treatment)
Palm (soil treatment)
Palo verde (blue) (soil treatment)
Pampasgrass (soil treatment)
Pansies (soil treatment)
Peach (ornamental) (nonbearing)
Pear (ornamental) (nonbearing)
Pecan (ornamental) (nonbearing)
Peppertree (soil treatment)
Periwinkle (soil treatment)
Petunia (soil treatment)
Photinia (soil treatment)
Pine (soil treatment)
Pistachio (ornamental) (nonbearing)
Pittosporum (soil treatment)
Plum (ornamental) (nonbearing)
Plumbago (soil treatment)
Podocarpus (soil treatment)
Pomegranate (ornamental) (nonbearing)
Privet (soil treatment)
Protea (soil treatment)
Prune (ornamental) (nonbearing)
Pyracantha (soil treatment)
Ranunculus (soil treatment)
Raphiolepis (soil treatment)
Red-cedar (soil treatment)
Redbud (soil treatment)
Redwood (soil treatment)
Rhododendron (soil treatment)
Rose (ramanas) (soil treatment)
Rose-of-sharon (soil treatment)
Rosemary (ground cover) (soil treatment)
Roses (soil treatment)
Sage (soil treatment)
Sequoia (soil treatment)
Shrimp plant (soil treatment)
Snapdragon (soil treatment)
Spruce (soil treatment)
St. augustinegrass (soil treatment)
Star jasmine (soil treatment)
Stonecrop (soil treatment)
Sumac (soil treatment)
Sweet william (soil treatment)
Sweetgum (soil treatment)
Sycamore (soil treatment)
Tall fescue (ornamental turf) (soil treatment)
Toyon (soil treatment)
Trumpet vine (soil treatment)
Variegated liriope lily turf (ground cover) (soil treatment)
Viburnum (soil treatment)
Walnut (ornamental) (nonbearing)
Weigela (soil treatment)
Wild lilac (soil treatment)
Willow (soil treatment)
Wintercreeper (soil treatment)
Xylosoma (soil treatment)
Yarrow (soil treatment)
Yellow tab (soil treatment)
Yew (soil treatment)
Yew pine (soil treatment)
Yucca (soil treatment)
Zinnia (soil treatment)
Zoysiagrass (ornamental turf) (soil treatment)