Identifying and Organically Controlling Aggressive Grassy Weeds Like Nutsedge

Introduction

Southern NJ lawn: fast-growing, light-green, single-sprout weed (1 inch/day). Likely yellow nutsedge or barnyard grass.

Identification Resources

• UC Davis: Yellow Nutsedge
• Oregon State: Barnyard Grass
• Virginia Tech DIY Weed ID: ppws.vt.edu

Organic Control

• NO Roundup/Weed-B-Gon: Kills soil life, disrupts balance.
• Corn Gluten: Pre-emergent for annuals (20–25 lbs/1000 sq ft).
• Organic Herbicides: Dirtworks (dirtworks.net), Biconet (lawn.pdf).

Conclusion

ID weed via university resources. Use organic pre-emergents and spot-treatments; avoid soil-sterilizing chemicals.