Shopping Cart

Your cart is empty.

Your cart is empty.

Syngenta Barricade 4FL Herbicide - Pre-Emergent Weed Control - Long Lasting Broadleaf Weed Prevention for Lawns, Turf Grass, Ornamentals and More

4.9 (8) Write Review
Free shipping on orders over $29.99

$35.06

$ 15 .99 $15.99

In Stock

About this item

  • PREVENT WEED DEVELOPMENT: Barricade 4FL herbicide controls the growth and development of weeds before they germinate. Barricade 4FL will not control weeds after they have germinated. In winter/spring, be sure to apply before soil temperatures reach 55 F for a 3-day average. In the fall, apply after soil temperatures fall below 50 F but before the ground freezes.
  • LONG-LASTING PRE-EMERGENT WEED PREVENTION: One application can prevent weeds all season when used as directed. You can apply this selective weed spray solution several months before germination and expect it to prevent crabgrass, chickweed, oxalis, goosegrass, Poa annua and spurge, well into the peak of the season.
  • BROAD-SPECTRUM HERBICIDE: This long-lasting pre-emergent herbicide is super effective on residential turf as well as production ornamentals and landscape ornamental trees and shrubs. It can prevent 30+ species of turf weeds, including both summer and winter annuals. It's all you need to stop pesky weeds from emerging in your lawn and landscape beds. See label for additional details. Length of control also varies by turf species and application time of year.
  • ULTRA EFFECTIVE & FLEXIBLE: You can use higher labeled rates of Barricade for season-long targeted weed control and use lower rates during shorter growing seasons. Its low solubility means it stays in the weed germination zone and will not break down even after heavy rain or snow. If you miss your timing for crabgrass germination, Barricade can be combined with Tenacity herbicide to control and prevent weeds.


Are you tired of dealing with weeding your landscape? Get great preemergent control with a lawn spray like Barricade 4FL. One application is all it takes for Barricade to control pre-germinated weeds for flower beds, lawn, turf, and more with Prodiamine as it's active ingredient. Established turfgrasses, Christmas tree farms, and Perennial and wildflower pairings will benefit from being treated with this selective weed concentrate solution. This product must be used only following its labeling and with the Worker Protection Standard, 40 CFR part 170. Refer to supplemental labeling under "Agricultural Use Requirements" in the directions for use section. No more ugly weeds will be in your landscape with the total vegetation control offered by Barricade 4FL's grass weed prevention for lawns.


Joseph McCall
2025-09-02 20:36:35
I've used both powders and liquids for pre-emergent application and this bottle is a good value for its size. I typically do a split application, dependent on the weather each year, to prevent crabgrass and other broadleaf weeds on 6k sq/ft of lawn. Seems to be effective as this past season (2024) I had very little broadleaf incursion in the treated areas.
Ben W.
2025-09-01 17:03:37
If you have ever tried to get Nutsedge out of your mulch beds, this product does the trick. I have mixing this with Roundup and it works at eliminating nutsedge and just about anything else from your mulch beds.
KF
2025-08-29 14:12:10
As advertised and prompt delivery. It’ll be many months to see if it works as advertised.
BobM
2025-04-01 14:55:00
This pre-emergent liquid was applied on patio pavers in the Spring. Nothing came up in the cracks all summer. One suggestion, Please put a proportion formula on the package. It was a guessing game to decide how much water to liquid to mix. I ended up with 4 water to 1 part liquid.
B Mad
2025-02-26 18:54:53
Even though this seems a little pricy for the amount of product, it works so it is worth it. I can’t say this particular bottle has worked but this is my 2nd or third time ordering because it works.
Vinnie G
2025-01-28 14:19:07
Applied product with the correct concentration with blue indicator in the correct manner. I have numerous weeds in areas that were sprayed less than a month ago. Not happy.
TMO'B
2024-11-26 16:08:36
I bought this to have a pre-emergent that I could apply without applying fertilizer again. I wanted to protect against crab grass, which emerges later in the summer when fertilizer should not be applied. The reason for the mediocre rating is that I have made two applications this summer and I still have some crabgrass in the areas treated. It is true that I probably have less than I would have had I not treated, but I think the preemergent that Scotts (Halts) makes is probably just as or more effective (but it is also fertilizer). I still have several plants that I have to pull each week to keep the crabgrass at bay. Yes, I read all the instructions and applied accordingly. FYI, the mfr makes strong recommendations about protective equipment and clothing to be worn while applying. I followed these recommendations as well. Again, just FYI. I applied this product using a pump sprayer.I do not know if I would buy this product again. I was disappointed in its effectivenessI
Phoebe
2024-11-25 13:41:10
My husband just recently got into law care and did all the research behind what application products were needed. He said this product was exactly what he needed to get the job done. Highly recommend and will be purchasing again.