{"product_id":"syngenta-barricade-4fl-herbicide-long-lasting-pre-emergent-control","title":"Syngenta Barricade 4FL Herbicide - Long-Lasting Pre-Emergent Control","description":"\u003cp\u003eOur review of Syngenta Barricade 4FL finds it best suited for homeowners and turf managers who want a season-long, pre-emergent solution to stop weeds before they sprout. The bottom line: Barricade 4FL uses the active ingredient prodiamine to remain in the weed germination zone and provide broad-spectrum control of 30+ turf weeds, so the biggest reason to buy is its predictable, long-lasting prevention when applied at the right soil temperatures. It is not a post-emergent, so it will not kill weeds that have already germinated.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-emergent prevention:\u003c\/strong\u003e Stops weed development before germination, delaying or eliminating seasonal weed outbreaks when applied at the correct timing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-lasting control:\u003c\/strong\u003e One application can suppress crabgrass, goosegrass, Poa annua and many broadleaf weeds well into the peak season without frequent reapplication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad-spectrum activity:\u003c\/strong\u003e Prevents over 30 species of turf weeds across summer and winter annuals, making it useful for lawns, turf grass and landscape ornamentals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible rates:\u003c\/strong\u003e Labeled higher rates provide season-long control while lower rates allow shorter-season use, so treatments can be tailored to the site and goals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow solubility:\u003c\/strong\u003e Stays in the germination zone rather than washing away, so heavy rain or snow is less likely to reduce effectiveness soon after application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eBarricade 4FL is aimed at homeowners, groundskeepers and production ornamental managers who plan ahead to prevent weeds rather than treat existing ones. It suits yards and landscaped beds where a single proactive treatment is preferred over repeated post-emergent spraying.\u003c\/p\u003e\n\u003cp\u003eThose who need to kill visible, established weeds should look elsewhere or combine Barricade with an appropriate post-emergent product; it will not control weeds after germination. Also, anyone concerned about staining should handle and store the concentrated liquid carefully, as some users reported staining if spilled.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeason-long prevention from a single application when timed correctly.\u003c\/li\u003e\n\u003cli\u003eEffective against both summer and winter annuals including crabgrass and Poa annua.\u003c\/li\u003e\n\u003cli\u003eLow solubility keeps the active ingredient in the germination zone through weather events.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWill not control weeds that have already germinated; timing is critical for success.\u003c\/li\u003e\n\u003cli\u003eSome customers reported concerns about value for money and possible staining if spilled on surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSyngenta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003ePre-emergent herbicide (4FL, gallon)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive ingredient\u003c\/td\u003e\n\u003ctd\u003eProdiamine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget weeds\u003c\/td\u003e\n\u003ctd\u003e30+ turf weeds including crabgrass, goosegrass and Poa annua\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse sites\u003c\/td\u003e\n\u003ctd\u003eLawns, turf grass, ornamentals, landscape trees and shrubs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl timing\u003c\/td\u003e\n\u003ctd\u003eApply before germination; spring before 55 F 3-day average, fall after soil drops below 50 F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eSyngenta Barricade 4FL is a solid choice for anyone focused on prevention: it reliably protects the germination zone and can provide season-long control with a single properly timed application. It is good value for those who need broad-spectrum pre-emergent control, but not for users who need to treat existing weeds or who cannot guarantee careful handling to avoid stains.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan Barricade 4FL kill weeds that are already visible?\u003c\/strong\u003e\u003cbr\u003eNo. Barricade is a pre-emergent herbicide and does not control weeds after they have germinated; use a post-emergent for established weeds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen should I apply Barricade for spring crabgrass prevention?\u003c\/strong\u003e\u003cbr\u003eApply in winter or early spring before soil temperatures reach a 3-day average of about 55 F to prevent crabgrass germination.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill heavy rain wash Barricade away?\u003c\/strong\u003e\u003cbr\u003eIts low solubility helps it remain in the germination zone, so heavy rain or snow shortly after application is less likely to reduce its effectiveness compared with more soluble products.\u003c\/p\u003e","brand":"Syngenta","offers":[{"title":"Default Title","offer_id":48185967509723,"sku":"B01JKAMACQ","price":274.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71Q3wpHkZ0L._SL1500.jpg?v=1769574431","url":"https:\/\/gearmusthave.com\/products\/syngenta-barricade-4fl-herbicide-long-lasting-pre-emergent-control","provider":"GearMustHave","version":"1.0","type":"link"}