Featured Article | GreenCast | Syngenta

Get Pre-emergent Weed Control this Spring

Barricade® 4FL and Barricade 65WG are premier pre-emergent herbicides that deliver low-rate, season-long efficacy against more than 30 of the most troublesome weeds, including crabgrass, chickweed, oxalis, goosegrass, Poa annua and spurge. They do this with a non-staining, easy-to-use formulation that offers the maximum convenience. A volume discount is available for Barricade 4FL, and Barricade 65WG is also available for use on fertilizer.

Longest-lasting for season-long control
As the longest-lasting pre-emergent weed control available, Barricade brands offer the season-long control you need. One application takes you through to the end of the season, and only Barricade brands offer you a guaranteed crabgrass control program. View the Barricade Herbicide Application Guarantee Program sheet for more details.

Mode of action
Barricade brands help control susceptible weeds by preventing growth and development of newly germinated weeds. Weed control is most effective when Barricade 4FL or 65WG (or Barricade on fert) is activated by at least 0.25 inch of rainfall or irrigation before weed seeds germinate and within 14 days following application.

Crabgrass will germinate when soil temperatures reach approximately 60° F at a 2-inch depth for at least two days in late winter/early spring. You can track soil temperature with these Soil Temperature Maps.

Barricade + Tenacity
If you have missed your timing for crabgrass germination, Barricade brands can be combined with a post-emergent herbicide like Tenacity® herbicide. On several turfgrass species, Tenacity + Barricade 4L or 65WG will help control crabgrass and many dicot weeds such as dandelion and oxalis, both pre- and post-emergent, widening the window for control of many troublesome weeds. See the Tenacity label for weed list and tolerant turfgrass species.

Barricade + Pennant Magnum
For added control of goosegrass, doveweed, yellow nutsedge and sprangletop in warm-season grasses, consider a combination or pre-emergence program of Barricade and Pennant Magnum® herbicide. Two modes of action can be an excellent solution to help control more weeds, and a 2(ee) label is also available for goosegrass control with Pennant Magnum.

Barricade rate conversions


Season-Long Crabgrass and Grub Control. One Application.
In northern geographies, the timing of pre-emergent herbicides (from April 1 through May 15) coincides with the application timing of preventive grub control. So, instead of making multiple applications to meet your preventive crabgrass and white grub control needs, upgrade to ONE application of Barricade 4FL or Barricade 65WG herbicide and Acelepryn® insecticide to keep both crabgrass and white grubs in check. You can save time by combining the longest lasting crabgrass control product with the longest lasting grub control product for season-long results. View the brochure for details.

For more information about weed control, contact your local Syngenta territory manager.

©2019 Syngenta. Important: Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties and/or may have state-specific use requirements. Please check with your local extension service to ensure registration and proper use. Syngenta supports a FIFRA Section 2(ee) recommendation for Pennant Magnum on goosegrass. Please see the section 2(ee) recommendation to confirm that the recommendation is applicable in your state. Acelepryn®, Barricade®, Pennant Magnum®, Tenacity® and the Syngenta logo are trademarks of a Syngenta Group Company.