RM43 43% Glyphosate Plus Weed Preventer
Best long-term solution for homeowners needing total bare-ground vegetation control.
RM43 43% Glyphosate Plus Weed Preventer is a powerful concentrate for long-term vegetation management. It provides season-long control, killing existing weeds, brush, vines, and trees while preventing regrowth for up to one year. Ideal for maintaining bare ground in areas like fence rows, driveways, and around farm buildings where no vegetation is desired. Available in multiple sizes, RM43 offers both total vegetation control and targeted spot treatment for comprehensive site maintenance.
$33.25
Owner Satisfaction
4.7
/ 5
Category Rank
6
/ 548
#6 in Herbicides
Price vs Category Average
-66%
Below average
Active Ingredient 1
43.68
/ Glyphosate, isopropylamine salt (%)
Who it's for
- Facility managers maintaining industrial sites or gravel perimeters
- Homeowners seeking long-term weed suppression and immediate knockdown
- Budget-conscious property managers treating expansive, overgrown areas
Who should skip it
- Lawn owners needing selective weed control for grass or gardens
- Gardeners wanting to protect nearby flowers or future plantings
- Users uncomfortable managing high-strength, hazardous chemical concentrates
Performance breakdown
Residual Control
Year-long bare ground maintenance sets the industry standard for total suppression.
Broad-Spectrum Efficacy
Dual active ingredients effectively eliminate everything from stubborn vines to woody brush.
Systemic Potency
Deep root penetration ensures weeds do not return after the initial application.
Weather Resilience
Two-hour rainfast window allows for reliable performance in unpredictable outdoor conditions.
Concentrate Versatility
Flexible dilution ratios accommodate both large-scale clearing and precise spot treatments.
Application Efficiency
Fast-drying formula minimizes downtime for high-traffic areas like driveways and paths.
Key Specs
Active Ingredient 1
Glyphosate, isopropylamine salt (43.68%)
Active Ingredient 2
Imazapyr, isoproylamine salt (0.78%)
Formulation
Concentrate
Control Duration
Up to 1 year of weed prevention
Packaging Options
Quart, Gallon, 2.5 Gallon
Target Weed Type
Grassy Weeds, Brush and Vines
Weed Selectivity Type
Non-Selective
Application Form
Concentrate
Features
- Kills weeds and prevents regrowth for up to one year
- Dual active ingredients for broad-spectrum control
- Provides season-long vegetation control
- Ideal for bare ground maintenance
- Effective for spot treatment
- Non-selective weed control
- Systemic action for thorough kill
What customers say
Customers consistently praise the RM43 for its exceptional quality and powerful effectiveness against stubborn weeds and brush. The high concentration of 43% glyphosate means a little goes a long way, translating directly into outstanding value for money compared to ready to use alternatives. Users appreciate the reliability, noting that it delivers professional grade results quickly, making it a trusted solution for large area weed control.
Know before you buy
No, you should not use this product near desirable plants. RM43 is a non-selective, long-term herbicide that will kill or damage any vegetation it touches and can remain active in the soil for up to a year, preventing new growth.
RM43 becomes rainfast two hours after application. Once the spray has fully dried on the leaves, rainfall will not wash away the herbicide or reduce its effectiveness.
You should keep pets and children away from the treated area until the spray has completely dried. Once the surface is dry, it is safe for them to re-enter the area.
RM43 uses systemic action, meaning it is absorbed through the leaves and travels down to the roots to kill the entire plant. While you may see wilting sooner, it typically takes a few days to a week to see the full effect on tough weeds and brush.
This is a concentrated formula that must be diluted with water according to the label instructions before use. It is best applied using a standard pump-up or backpack sprayer to ensure even coverage over your target area.
Because RM43 provides residual control for up to one year, you should not plant anything in the treated area for at least 12 months. It is specifically designed for bare-ground maintenance where you want to prevent all vegetation growth.
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$33