Fertilizer Burn & Striping

About Fertilizer Burn & Striping

Actual fertilizer burn — where grass dies from over-application — is surprisingly uncommon. The most common cause is a homeowner hitting a bump on their push spreader, causing fertilizer to slosh out of the hopper in a concentrated pile on one spot. That spot burns, and you get a brown circle with a green ring that looks identical to dog urine damage. What homeowners actually see far more often is fertilizer striping: alternating bands of dark green and light green grass across the lawn. This is caused by uncalibrated spreader application — walking too slow (over-applying in that pass), walking too fast (under-applying), making passes too narrow (overlap zones get double the rate), or making passes too wide (gaps between passes get zero product). Scotts brand broadcast spreaders have a specific design flaw worth knowing about. The wheels are hollow, and fertilizer gets trapped inside the wheel cavity. As the wheel rotates, it drops the trapped fertilizer in a thin, perfectly straight line directly under the wheel path. The result is distinctive thin dark-green stripes that follow the exact wheel tracks. If you see perfectly straight, thin green lines on a lawn, check whether the homeowner uses a Scotts spreader. The fix for fertilizer striping is straightforward: apply fertilizer at a lower rate at a perpendicular angle (ninety degrees) to the original striped passes. The perpendicular application evens out the distribution across the under- and over-applied zones. Alternatively, if you are confident in your technique, you can apply a reduced rate directly into the under-fertilized light-green strips only. Either approach blends out the striping within one to two mowing cycles.

Fertilizer Burn & Striping (N/A) is an abiotic disorder — a non-living, environmental cause of plant damage — commonly encountered in Middle Tennessee, including Columbia, Thompson's Station, Spring Hill, and the surrounding areas. This entry is part of our Abiotic Disorders Library.

Unlike diseases caused by fungi or bacteria, abiotic disorders cannot be treated with pesticides. Correct diagnosis is essential — our UT Certified horticulturist can evaluate your lawn or landscape and recommend the right corrective action.