Spectracide Weed Stop For Lawns Plus Crabgrass Killer Concentrate, 40-Ounce

TLDR Review: Spectracide Weed Stop Concentrate

Published: July 1st, 2025
Last Updated: July 18th, 2025

Pros

  • Effective at weakening weeds, making them easier to pull.
  • Was previously effective at eliminating weeds in a 2019 application.
  • More effective in comparison to other weed control products used by some users.

Cons

  • Suggested dilution rate is ineffective for some users.
  • Did not completely eliminate all types of weeds as claimed.
  • Less effective this year, with many weeds remaining after application.
  • Contrast in performance compared to competitors leads to disappointment.
  • Mixed results even when using extra product or following instructions carefully.
  • Ineffective particularly at killing crabgrass and other specified weeds.
  • Damage concerns with Bermuda grass turning brown after use.
  • Multiple reviews mention dissatisfaction, deeming the product a waste of money and time.
  • Users experience no noticeable results, leading to doubt about its effectiveness.

Bottom Line

Spectracide Weed Stop For Lawns Plus Crabgrass Killer Concentrate shows mixed results, with some users experiencing ineffectiveness regarding weed elimination, particularly with crabgrass. The product may weaken weeds to aid in pulling but does not consistently deliver as advertised. For those seeking reliable weed control, exploring alternative brands with higher proven efficacy might be advisable.

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