Goosegrass (Silver Crabgrass)
Eleusine indica
Goosegrass (Silver Crabgrass) (Eleusine indica) is a summer annual grassy weed characterized by prostrate flat clumps with a distinct silvery-white center; tough dark-green leaves; zipper-like seed spikes.. It anchors via a fibrous roots root system and is selectively controlled using Oxadiazon / Prodiamine (Pre-emergent); Sulfentrazone / Pylex (Post-emergent) applied during pre-emergent applied 2–3 weeks later than standard crabgrass timing (60°f–65°f soil temp)..
Oxadiazon / Prodiamine (Pre-emergent); Sulfentrazone / Pylex (Post-emergent)
Prostrate flat clumps with a distinct silvery-white center; tough dark-green leaves; zipper-like seed spikes.
Always read and follow the manufacturer's EPA-approved pesticide product label. The label is the law under federal FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act) regulations. Application rates, personal protective equipment (PPE), target weed maturity stages, temperature restrictions, and grazing or re-entry intervals specified on the EPA container label supersede all online recommendations. Local state regulations may restrict certain active ingredients.
University-Verified Herbicide Formulations
Professional active formulations cross-referenced against university weed science trials.
Tenacity Herbicide (Mesotrione 8 oz)
Active: 40% Mesotrione Selective Systemic
Gold standard selective pre- and post-emergent targeting crabgrass, ground ivy, yellow nutsedge, and clover during overseeding.
SedgeHammer+ Turf Herbicide (Halosulfuron 0.5 oz)
Active: 5% Halosulfuron-methyl with Surfactant
Pre-mixed with surfactant for 1-gallon sprayers. Translocates into underground nutlets without injuring cool or warm season lawns.
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Botanical Identification Key for Goosegrass (Silver Crabgrass)
Accurately identifying Eleusine indica is essential because spraying non-selective chemicals like glyphosate risks killing desirable lawn grass. Look for these botanical hallmarks:
- Foliar Morphology: Prostrate flat clumps with a distinct silvery-white center; tough dark-green leaves; zipper-like seed spikes..
- Root Architecture: Anchored by a fibrous roots, making manual pulling ineffective unless the entire root crown is extracted.
- Growth Period: Active during summer annual cycles, flourishing when lawn turf is stressed or cut too short.
Eradication Protocol & Selective Herbicide Selection
To eradicate Goosegrass (Silver Crabgrass) while preserving your lawn turfgrass, apply Oxadiazon / Prodiamine (Pre-emergent); Sulfentrazone / Pylex (Post-emergent) during Pre-emergent applied 2–3 weeks later than standard crabgrass timing (60°F–65°F soil temp).. Ensure that the active ingredients match your host turfgrass tolerances:
- Temperature Safety Band: Apply when ambient air temperatures range between 65°F and 85°F. Never apply volatile ester herbicides in temperatures exceeding 85°F to prevent herbicide vapor drift and leaf burn.
- Adjuvant / Surfactant: For waxy or hairy weed foliage, mix with a methylated seed oil (MSO) or non-ionic surfactant according to EPA label instructions to enhance chemical cuticle penetration.
- Mowing Holdback: Do not mow the lawn 2 days prior to spraying or 2 days after application to maximize foliar surface area for chemical absorption.
Frequently Asked Questions About Goosegrass (Silver Crabgrass)
01 How do I kill Goosegrass (Silver Crabgrass) without harming my lawn?
Use a selective herbicide labeled for your specific turfgrass species containing Oxadiazon / Prodiamine (Pre-emergent); Sulfentrazone / Pylex (Post-emergent). Spray when Goosegrass (Silver Crabgrass) is actively growing during pre-emergent applied 2–3 weeks later than standard crabgrass timing (60°f–65°f soil temp).. Always check your host grass in our weed triage tool before application.
02 Why does pulling Goosegrass (Silver Crabgrass) by hand often fail?
Goosegrass (Silver Crabgrass) anchors via a fibrous roots. Hand-pulling often breaks the crown or leaves underground root fragments, rhizomes, or nutlets behind, which triggers rapid regrowth. Systemic selective herbicides translocate down through the vascular tissue to destroy the entire root structure.
03 What class of weed is Goosegrass (Silver Crabgrass)?
Goosegrass (Silver Crabgrass) is classified botanically as a Grassy weed with a Summer Annual life cycle.
04 When is the best time of year to treat Goosegrass (Silver Crabgrass)?
The optimal eradication window is Pre-emergent applied 2–3 weeks later than standard crabgrass timing (60°F–65°F soil temp).. Applying when temperatures are between 60°F and 85°F ensures maximum chemical absorption and prevents foliar heat stress to your desirable lawn.