5 out of 5 Customer Rating
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Scotts WeedEx Prevent with Halts, 10.06 lbs.



  • Scotts® WeedEX™ Prevent with Halts® prevents crabgrass all season long
  • Stops crabgrass before it starts
  • Apply in early spring for season-long prevention of crabgrass; Fall application prevents winter weeds such as poa annua, henbit and chickweed
  • Effective pre-emergent control of crabgrass, foxtail, spurge, oxalis, and other grassy and broadleaf weeds
  • Use on all lawn and grass types (except dichondra or bentgrass)

Specs and Details

Active Ingredients

  • 1.71% Pendimethalin


  • This product could cause staining on cement, stone, or metallic surfaces, clothing, and shoes. To avoid stains, sweep particles off hard surfaces and back into the treated area. Brush off shoes and clothing. If necessary, use water to rinse the particles away.

Disposal Methods

  • If empty: Place in trash or offer for recycling if available.
  • If partly filled: Call your local solid waste agency for disposal instructions. Never place unused product down any indoor or outdoor drain.
  • Storage: Store in a dry place. Reseal opened bag by folding top down and securing.

Product Label

  • This is not the product label. Always read and follow the product label before use.
  • Download Label

  • Safety Data Sheets can be found at scottsmsds.com


Looking for a way to prevent weeds for a beautiful lawn all season long? A single application of Scotts® WeedEX™ Prevent with Halts® in the early spring can prevent crabgrass and problem weeds. Rain, snow, or freezing weather won't affect the product performance, so you don't have to worry about the elements after you've applied. Apply easily with a Scotts® broadcast, drop, hand-held or Wizz® spreader to all lawn and grass types (except dichondra or bentgrass).

Step by Step Instructions

How to Use

  1. Check bag for spreader setting
  2. When using a Scotts® broadcast or Wizz® spreader, make a perimeter pass of your lawn with EdgeGuard® on to protect non-lawn areas. Then, make parallel internal passes 5 ft. apart to ensure even coverage.
  3. When using a Scotts drop spreader, start 5 feet from the edge of your lawn and walk the outline of your lawn. Then, make internal passes across your lawn, overlapping the wheel marks to ensure uniform coverage.

When and Where to Use

Where Not to Use

  • Do NOT apply to dichondra or bentgrass lawns

Where to Use

  • Can be used on all lawn and grass types EXCEPT dichondra and bentgrass

When to Apply

  • Apply once in spring and once in the fall
  • In southern California, apply before March 1st
  • In northern California, apply before mid-March

How Often to Apply

  • Apply a maximum of twice a year with a minimum of 2 months between applications

Special Instructions

Watering Tips

  • It is not necessary to water in immediately. For best results, lightly water the lawn to rinse particles from grass blades (up to ¼ to ½ inch) within 2-3 days after application.

Using with Other Products

  • Follow with Scotts® Turf Builder® Weed & Feed or with Scotts® Weed Control for Lawns

Frequently Asked Questions

Our Guarantee

Scotts No-Quibble Money Back Guarantee®: If for any reason you, the consumer, are not satisfied after using this product, you are entitled to get your money back. Simply send us evidence of purchase and we will mail you a refund check promptly.

Weeds Controlled

Apply in spring to prevent crabgrass, foxtail, spurge, barnyardgrass, fall panicum, goosegrass, oxalis, and other problem weeds.

Apply in the fall to prevent moss (except in California), henbit, chickweed, poa annua, corn speedwell, and other winter weeds.

Our Environment

Scotts is dedicated to helping you enhance and protect the beauty of your home environment. We recommend that you apply this product in calm weather and when rain is not predicted for at least 24 hours. You should also sweep any product that has spilled or spread to sidewalks or other hard surfaces, back into the area being treated. This prevents runoff into streams and lakes.

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