Regal Ronstar AC
Regal Chemical Company · solid Herbicide, Preemergence Herbicide
Active Ingredients
- Oxadiazon2%
- Signal word
- Caution
- Re-entry interval
- 12 hours
- Type
- Herbicide, Preemergence, Herbicide
- Formulation
- solid
Mode of Action (FRAC)
- E
Class E · Herbicide, Preemergence
Inhibition of protoporphyrinogen oxidase (PPO)
Crops & Pests
Regal Ronstar AC controls or suppresses the following pests when applied at labeled rates:
- Amaranth, Spiny
- Barnyardgrass/Watergrass
- Bittercress
- Bluegrass, Annual
- Buttonweed, Virginia
- Carpetgrass
- Carpetweed
- Catsear, Common/Spotted
- Cheeseweed
- Crabgrass
- Eveningprimrose
- Fiddleneck
- Fireweed
- Foxtail, Bristly
- Foxtail, Green
- Galinsoga
- Goosegrass
- Groundsel, Common
- Junglegrass
- Junglerice
- Lambsquarters
- Liverwort
- Nettle, Stinging
- Niruri
- Oat, Wild
- Oxalis
- Oxtongue, Bristly
- Panicum, Fall
- Paspalum
- Paspalum, Panama
- Pigweed
- Pigweed, Redroot
- Purslane, Common
- Pusley, Florida
- Ragwort, Golden
- Ripgut Bromegrass
- Sandbur, Field
- Sedge, Annual
- Sensitiveplant
- Shepherdspurse
- Smartweed, Pennsylvania
- Sowthistle
- Speedwell
- Spurge, Garden
- Spurge, Petty
- Spurge, Prostrate
- Swinecress
- Woodsorrel, Yellow
- Abutilon
- Acacia
- Agapanthus
- Allamanda, Common/Golden-Trumpet
- Andromeda
- Aralia
- Aralia /Japanese Fatsia
- Arborvitae
- Ash, Green/Red
- Azalea
- Baby's-breath
- Bamboo, Feathery
- Barberry
- Bearberry
- Bearberry, Common/Kinnikinick
- Beech, European
- Bentgrass
- Bermudagrass
- Bermudagrass, Established
- Birch, Paper
- Blanketflower
- Bluegrass
- Bottlebrush
- Bougainvillea
- Boxwood, Common/English
- Boxwood, Japanese
- Brassaia, Dwarf
- Broom, Scotch
- Buddleia /Summer Lilac
- Buffalograss
- Bugleflower
- Camellia
- Camellia, Sasanqua
- Candytuft
- Carissa
- Carnation
- Ceanothus/Redroot
- Cedar, Atlas
- Cedar, Red/Eastern Red
- Cherry, Kwanzan
- Cherry, Sargent
- Chrysanthemum
- Citrus
- Cleyera
- Conifers
- Copperleaf, Lance/Jacob's Coat/Beefsteak Plant
- Coreopsis
- Coromandel
- Cotoneaster
- Crabapple
- Crape Myrtle
- Cypress
- Cypress, Bald
- Cypress, False-Hinoki
- Cypress, False-Japanese
- Cypress, Leyland
- Dahlia
- Daisy, Trailing African
- Daphne, Fragrant/Winter
- Deutzia, Slender
- Dieffenbachia
- Dogwood
- Dogwood, Chinese/Kousa
- Dogwood, Flowering
- Dogwood, Red-osier/Red Twig
- Elm
- Escallonia
- Eucalyptus
- Euonymous
- Euonymous, Spreading
- Euonymous, Wintercreeper/Canada Gold
- Euonymus, Spreading
- Euryops, Gray-leaved
- Fescue, Tall
- Fir, Douglas
- Fire Thorn
- Forsythia
- Fruit, Citrus
- Gardenia
- Gay-feather/Blazing Star
- Gazania, Trailing
- Gingko
- Ginkgo
- Gladiolus
- Golden-rain Tree
- Golf Course
- Golf Course, Fairways
- Grape Holly
- Grapefruit
- Hackberry
- Hawthorn, Raphiolepis
- Heath, Spring
- Heather, Scotch
- Heliotrope
- Hemlock, Eastern/Canada
- Hibiscus
- Holly
- Honeysuckle
- Iceplant
- Ilima
- Ivy, Algerian
- Ivy, English
- Jasmine, Orange
- Jasmine, Primrose
- Jasmine, Showy
- Jasmine, Star
- Juniper
- Justica
- Lalo, Tropic
- Lamb's Ears
- Lantana
- Lantana, Trailing
- Lapalapa
- Larch, European
- Laurel, English/Cherry
- Lawns /Turf
- Lemon
- Leopard's-bane
- Leopards-Bane
- Leucothoe, Coast
- Leucothoe, Fountain/Drooping/Doghobble
- Lilac
- Lily-of-the-Nile
- Lime
- Linden, Littleleaf
- Loquat
- Magnolia
- Mahonia
- Maple
- Metallic Plant
- Mexican Orange
- Mickey-mouse Plant
- Mockorange
- Money tree
- Murraea
- Myoporum
- Myrtle
- Nandina
- Oak
- Ohai
- Oleander
- Olive, Russian
- Orange, Cuban Shaddock
- Orange, Navel
- Orange, Navel/Sweet
- Orange, Valencia
- Oregano, Mexican
- Orthosiphon
- Osmanthus
- Osmanthus /Holly-olive/Devilweed
- Pachysandra
- Palm, Bamboo
- Palm, Christmas/Manila
- Palm, Fishtail
- Palm, Licuala
- Palm, Macarthur
- Palm, Manac
- Palm, Parlor
- Palm, Rattan
- Palm, Sealing-wax
- Palm, Sugar
- Paperbark Tree/River Tea Tree
- Parks
- Paspalum, Seashore
- Peony
- Periwinkle
- Periwinkle, Common
- Periwinkle, Greater
- Photinia, Fraser/Red Tip
- Pine
- Pine, Loblolly
- Pine, Slash
- Pine, White/Eastern White
- Pittosporum, Japanese/Mockorange
- Plum, Natal
- Podocarpus
- Poinciana
- Pomegranate
- Poplar
- Potentilla
- Privet
- Protea
- Pyracantha
- Quince, Flowering
- Redwood, Dawn
- Rhododendron
- Rockrose
- Rose
- Ryegrass, Perennial
- Sedum
- Sedum /Stonecrop/Orpine
- Serviceberry, Saskatoon
- Shrubs, Ornamental
- Spruce
- St. Augustinegrass
- St.-John's-wort, Golden
- St.-John's-wort, Goldencup
- Statice
- Strawberry Tree
- Sumac, Staghorn
- Sweet William
- Syzygium
- Tangelo
- Tangerine
- Tangerine /Mandarin Orange
- Tangerine/Mandarin
- Tangor /Temple Orange
- Temple Tree
- Thyme, Wooly
- Trees, Ornamental
- Viburnum
- Vine, Ornamental
- Wedelia
- Weeping, Banyan
- Wisteria, Chinese
- Witchhazel
- Witchhazel, Common
- Woadwaxen
- Woody Ornamentals
- Xylosma
- Yew
- Zoysiagrass
- Zoysiagrass, Established
Safety & Compliance
- Early entry
- Coveralls over short-sleeved shirt and short pants, waterproof gloves, chemical-resistant footwear plus socks and chemical-resistant headgear for overhead exposure.
- Personal Protection
- Applicators and other handlers must wear coveralls over short-sleeved shirt and short pants, waterproof gloves, a chemical resistant apron when cleaning equipment, protective eye wear, chemical resistant headgear for overhead exposure and chemical resistant footwear plus socks.
- May be exposed to direct sunlight
- Is not vulnerable to flame or sparks
- May be stored in a damp place
- May be stored in a warm place
- May be frozen
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