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Turfgrass Blade Trait Decoder (Master Hub)

Autonomous botanical identification engine evaluating vernation, ligule, collar, and blade tip morphology.

Fertilizer N-P-K Stoichiometry & Spreader Calibrator

Exact mathematical nitrogen dosing, spreader dial calibration, and real-time soil temperature germination window radar.

Turfgrass Species & Transition Zone Matrix

Cool-season and warm-season comparison matrix with mowing tolerances, drought thresholds, and root architectures.

Lawn Weed Identification & Selective Herbicide Triage

Broadleaf, grassy, and sedge triage with chemical tolerance matrices (Atrazine, 2,4-D, Halosulfuron) for all turfgrasses.

Lawn Disease Diagnosis & Turf Pest Control Hub

Diagnostic decision tree for lawn fungus, patch disease identification, and subterranean pest eradication.

Kentucky Bluegrass

Poa pratensis

Mow: 2.5 – 3.5 in • Zones 3 – 7

Tall Fescue

Festuca arundinacea

Mow: 3.0 – 4.0 in • Zones 4 – 8

Perennial Ryegrass

Lolium perenne

Mow: 1.5 – 2.5 in • Zones 3 – 8

Fine Fescue (Creeping Red)

Festuca rubra

Mow: 2.5 – 3.5 in • Zones 3 – 7

Bermudagrass

Cynodon dactylon

Mow: 1.0 – 2.0 in • Zones 7 – 11

St. Augustine Grass

Stenotaphrum secundatum

Mow: 3.0 – 4.0 in • Zones 8 – 11

Zoysia Grass

Zoysia japonica / matrella

Mow: 1.5 – 2.5 in • Zones 5 – 10

Centipedegrass

Eremochloa ophiuroides

Mow: 1.5 – 2.0 in • Zones 7 – 9

Bahiagrass

Paspalum notatum

Mow: 3.0 – 4.0 in • Zones 8 – 10

Buffalograss

Bouteloua dactyloides

Mow: 2.0 – 3.5 in • Zones 3 – 9

Rough Bluegrass (Poa trivialis)

Poa trivialis

Mow: 2.0 – 3.0 in • Zones 3 – 7

Annual Bluegrass (Poa annua)

Poa annua

Mow: 0.2 – 2.0 in • Zones 3 – 10

Carpetgrass

Axonopus affinis

Mow: 1.5 – 2.5 in • Zones 8 – 9

Seashore Paspalum

Paspalum vaginatum

Mow: 0.5 – 1.5 in • Zones 8 – 11

Creeping Bentgrass

Agrostis stolonifera

Mow: 0.1 – 0.5 in • Zones 3 – 6

Hard Fescue

Festuca trachyphylla

Mow: 2.5 – 3.5 in • Zones 3 – 7

Chewings Fescue

Festuca rubra subsp. commutata

Mow: 2.0 – 3.0 in • Zones 3 – 7

Sheep Fescue

Festuca ovina

Mow: 2.5 – 4.0 in • Zones 3 – 6

Kikuyugrass

Pennisetum clandestinum

Mow: 1.0 – 2.0 in • Zones 9 – 11

Dichondra (Lawn Substitute)

Dichondra micrantha

Mow: 0.75 – 2.0 in • Zones 8 – 11

Redtop

Agrostis gigantea

Mow: 2.0 – 3.5 in • Zones 3 – 8

Meadow Fescue

Festuca pratensis

Mow: 2.5 – 3.5 in • Zones 3 – 7

Canada Bluegrass

Poa compressa

Mow: 2.0 – 3.0 in • Zones 2 – 7

Annual Ryegrass (Italian Ryegrass)

Lolium multiflorum

Mow: 2.0 – 3.0 in • Zones 4 – 9

Colonial Bentgrass

Agrostis capillaris

Mow: 0.5 – 1.25 in • Zones 4 – 7

Crabgrass (Large & Smooth)

Digitaria sanguinalis / ischaemum

Herbicide: Prodiamine / Dithiopyr (Pre-emergent at 55°F soil temp); Quinclorac (Drive XLR8) or Tenacity (Post-emergent)

Dandelion

Taraxacum officinale

Herbicide: 2,4-D + Dicamba + MCPP (3-Way Broadleaf Herbicide) or Triclopyr

White Clover

Trifolium repens

Herbicide: Triclopyr Ester (Turflon Ester) or Fluroxypyr

Creeping Charlie (Ground Ivy)

Glechoma hederacea

Herbicide: Triclopyr (Triclopyr + 2,4-D) applied during active flowering or after first autumn frost

Yellow Nutsedge (Nutgrass)

Cyperus esculentus

Herbicide: Halosulfuron-methyl (SedgeHammer Plus) or Sulfentrazone (Dismiss)

Broadleaf Plantain

Plantago major

Herbicide: 2,4-D or Triclopyr combination spray

Spotted Spurge

Euphorbia maculata

Herbicide: Isoxaben / Prodiamine (Pre-emergent); 2,4-D + Dicamba + Sulfentrazone (Post-emergent)

Henbit

Lamium amplexicaule

Herbicide: Isoxaben (Fall Pre-emergent) or 2,4-D + Dicamba (Early Spring Post-emergent)

Purple Deadnettle

Lamium purpureum

Herbicide: 2,4-D + MCPP + Dicamba (Post-emergent)

Common Chickweed

Stellaria media

Herbicide: Triclopyr or Fluroxypyr

Wild Violet

Viola sororia

Herbicide: Triclopyr with methylated seed oil (MSO) surfactant applied in autumn

Yellow Woodsorrel (Oxalis)

Oxalis stricta

Herbicide: Triclopyr or Fluroxypyr (Post-emergent); Isoxaben (Pre-emergent)

Buckhorn Plantain

Plantago lanceolata

Herbicide: 2,4-D + Dicamba combination spray

Goosegrass (Silver Crabgrass)

Eleusine indica

Herbicide: Oxadiazon / Prodiamine (Pre-emergent); Sulfentrazone / Pylex (Post-emergent)

Quackgrass

Elymus repens

Herbicide: Non-selective Glyphosate spot treatment (few selective options exist in cool turf)

Dallisgrass

Paspalum dilatatum

Herbicide: MSMA (golf/sports only) or Tribute Total / Celsius in southern warm-season lawns

Torpedograss

Panicum repens

Herbicide: Quinclorac (Drive XLR8) in Bermuda and Zoysia (suppression requires multi-pass)

Chamberbitter (Gripweed)

Phyllanthus urinaria

Herbicide: Isoxaben / Indaziflam (Pre-emergent); Atrazine / 2,4-D (Post-emergent in warm turf)

Field Bindweed

Convolvulus arvensis

Herbicide: Quinclorac or 2,4-D + Dicamba combination

Black Medic

Medicago lupulina

Herbicide: 2,4-D + MCPP + Dicamba or Fluroxypyr

Prostrate Knotweed

Polygonum aviculare

Herbicide: Isoxaben (Pre-emergent); 2,4-D + Dicamba (Early Post-emergent while seedlings small)

Common Purslane

Portulaca oleracea

Herbicide: 2,4-D + Dicamba or Triclopyr

Carpetweed

Mollugo verticillata

Herbicide: Standard 3-Way Broadleaf Herbicide (2,4-D + Dicamba + MCPP)

Horsenettle

Solanum carolinense

Herbicide: Triclopyr or 2,4-D Amine

Mouse-Ear Chickweed

Cerastium fontanum

Herbicide: Triclopyr or Fluroxypyr

Yellow Foxtail

Setaria pumila

Herbicide: Prodiamine / Dithiopyr (Pre-emergent); Quinclorac (Post-emergent in cool turf)

Green Foxtail

Setaria viridis

Herbicide: Pendimethalin or Prodiamine (Pre-emergent)

Annual Sowthistle

Sonchus oleraceus

Herbicide: 2,4-D + Dicamba combination herbicide

Bull Thistle

Cirsium vulgare

Herbicide: 2,4-D + Triclopyr or Clopyralid

Shepherd's Purse

Capsella bursa-pastoris

Herbicide: 2,4-D + MCPP + Dicamba (Post-emergent in spring); Isoxaben (Fall Pre-emergent)

Brown Patch (Rhizoctonia solani)

Leaves exhibit water-soaked dark lesions that dry into irregular tan spots with dark brown margins. Turf crown... Chemical: Azoxystrobin (QoI / Group 11 Fungicide) & Propiconazole (DMI / Group 3 Fungicide)

Dollar Spot (Clarireedia jacksonii)

Individual leaf blades show bleached hourglass lesions with distinct reddish-brown borders. White cobwebby myc... Chemical: Propiconazole (Group 3) & Myclobutanil (Group 3)

Pythium Blight (Grease Spot) (Pythium aphanidermatum)

Blades feel slimy and oily; distinct cottony white fungal mycelium in morning; turf collapses and dies within ... Chemical: Mefenoxam (Group 4) & Cyazofamid (Group 21)

Summer Patch (Magnaporthiopsis poae)

Roots turn dark brown to black and slough off; turf pulls up effortlessly from soil like a carpet.... Chemical: Azoxystrobin (Group 11)

Lawn Rust (Puccinia spp.)

Powdery orange fungal pustules on leaf blades that easily rub off onto shoes, pets, and mower wheels.... Chemical: Myclobutanil (Group 3)

Red Thread (Laetisaria fuciformis)

Bright coral-red brittle fungal threads (sclerotia) extending from leaf tips.... Chemical: Azoxystrobin (Group 11)

White Grubs (Japanese Beetle & Chafer Larvae) (Phyllophaga spp. / Popillia japonica)

Turf pulls back effortlessly with zero root anchoring; fat C-shaped creamy white grubs visible in top 1-2 inch... Chemical: Chlorantraniliprole (Preventative) & Trichlorfon (Curative)

Hairy Chinch Bugs (Blissus leucopterus)

Insect injects toxic saliva while sucking sap; small black insects with white wing patches and reddish nymphs ... Chemical: Bifenthrin (Pyrethroid) & Imidacloprid (Neonicotinoid)

Red Imported Fire Ants (Solenopsis invicta)

Aggressive stinging reddish-brown ants boiling out of disturbed soil mounds within seconds.... Chemical: Indoxacarb (Bait) & Bifenthrin (Contact insecticide)

About What Grass Is This & Research Methodology

University extension lab protocols, agronomic editorial peer review board, and certified turfgrass science credentials.

Privacy Policy (Zero-Tracking Guarantee)

Zero third-party tracking, zero surveillance pixels, and local browser-only telemetry persistence disclosures.

Terms of Service & EPA Directives

EPA label compliance mandates, statutory FIFRA chemical safety disclosures, and agronomic liability limitations.

Agronomic Security & Content Integrity Protocol

Cryptographic data integrity, CSP policies, and verification frameworks for extension formulas.