Monterey Herbicide Helper Crop Oil Concentrate Spreader and Penetrant
Best additive for gardeners struggling to eliminate stubborn, resistant weeds.
Enhance the effectiveness of your weed control efforts with Monterey Herbicide Helper Crop Oil Concentrate. This powerful spreader and penetrant is designed to significantly improve how herbicides and weed killers absorb into plant material and leaves. It is formulated to work effectively with both selective and non-selective weed killers, often reducing the total amount of herbicide required for successful results. This concentrate is ideal for tackling tough weeds that have previously resisted treatment. For application, mix 2 tablespoons (1 fluid ounce) per gallon of water and apply directly to the foliage using a standard sprayer.
$20.99
Owner Satisfaction
4.6
/ 5
Category Rank
105
/ 575
#105 in Gardening
Price vs Category Average
-80%
Below average
Container Type
Bottle
/ Bottle
Who it's for
- Gardeners struggling with stubborn, waxy-leafed weeds
- Budget-conscious users aiming to minimize chemical waste
- Landowners managing diverse weed control projects
Who should skip it
- Applicators working with delicate or smooth-leafed plants
- Farmers working in extreme heat or high humidity
- Beginners uncomfortable with precise chemical measurements
Performance breakdown
Herbicide Efficacy
Significantly boosts the kill rate on stubborn, waxy-leafed weeds.
Mixing Versatility
Compatible with a wide range of selective and non-selective herbicide brands.
Application Efficiency
Reduces total chemical volume needed for consistent, professional-grade results.
Penetration Power
Breaks down leaf barriers to ensure active ingredients reach the plant core.
Ease of Dilution
Simple measurement ratio makes tank mixing straightforward for home gardeners.
Concentrate Value
Small bottle footprint provides enough additive for several large-scale spray sessions.
Key Specs
Container Type
Bottle
Available Sizes
8 oz, 16 oz
UPC
022179101173
Application Dilution
2 Tbsp. (1 fl. oz) per gallon of water
Features
- Increases the absorbency of plant material and leaves for better herbicide performance.
- Boosts effectiveness when used with both selective and non-selective weed killers.
- Helps herbicides penetrate weeds more easily, targeting difficult-to-kill varieties.
- Reduces the overall quantity of weed killer needed for effective results.
- Concentrate formulation allows for customizable mixing ratios.
What customers say
Customers consistently highlight the exceptional reliability and value of the Monterey Herbicide Helper. Reviewers frequently note that this crop oil concentrate dramatically improves the effectiveness of their chosen herbicides, turning weak applications into powerful weed killers. Users appreciate that a small amount goes a long way, making it a cost effective solution for maximizing chemical investment. The consensus is that this product is essential for serious weed control, delivering dependable results across various applications and significantly enhancing overall spray performance.
Know before you buy
Monterey Herbicide Helper acts as a surfactant, breaking down the waxy surface of leaves so your herbicide can penetrate the plant more effectively. This ensures the active ingredients reach the weed's internal systems rather than just beading up and rolling off.
Yes, it is compatible with both selective and non-selective weed killers. It is particularly useful for stubborn, waxy-leafed weeds that are typically resistant to standard herbicide applications.
The standard mixing ratio is 2 tablespoons, or 1 fluid ounce, per gallon of water. You should add this to your tank mix along with your chosen herbicide.
Because it improves the absorption and efficacy of the herbicide, many users find they can achieve the same results while using a lower total volume of weed killer. Always follow the specific label instructions on your herbicide to ensure you remain within safe and effective application ranges.
This product is an additive, not a herbicide itself. While it is safe to use alongside your weed control products, ensure the herbicide you are mixing it with is labeled as safe for the specific plants or lawn areas you are treating.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$21