---
product_id: 338471343
title: "Southern Ag Methylated Seed Oil (MSO) Surfactant, 32oz - 1 Quart"
brand: "southern ag"
price: "€ 124.44"
currency: EUR
in_stock: false
reviews_count: 5
category: "Southern Ag"
url: https://www.desertcart.nl/products/338471343-southern-ag-methylated-seed-oil-mso-surfactant-32oz-1-quart
store_origin: NL
region: Netherlands
---

# Rapid leaf tissue penetration Less viscous than typical plant oils Resists evaporation for lasting effect Southern Ag Methylated Seed Oil (MSO) Surfactant, 32oz - 1 Quart

**Brand:** southern ag
**Price:** € 124.44
**Availability:** ❌ Out of Stock

## Summary

> 🌱 Elevate your garden game with the pro-grade surfactant that weeds fear!

## Quick Answers

- **What is this?** Southern Ag Methylated Seed Oil (MSO) Surfactant, 32oz - 1 Quart by southern ag
- **How much does it cost?** € 124.44 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/338471343-southern-ag-methylated-seed-oil-mso-surfactant-32oz-1-quart)

## Best For

- southern ag enthusiasts

## Why This Product

- Trusted southern ag brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Generous Supply:** 32oz quart bottle offers multiple applications—value meets convenience
- • **Precision Penetration:** Rapidly penetrates tough leaf cuticles for faster results
- • **Effortless Compatibility:** Seamlessly mixes with various herbicides, no plant damage
- • **Long-Lasting Performance:** Evaporation-resistant formula keeps your treatment effective longer
- • **Maximize Herbicide Power:** Boosts herbicide absorption for superior weed control

## Overview

Southern Ag Methylated Seed Oil (MSO) Surfactant is a high-quality, 32oz oil-based adjuvant designed to enhance herbicide performance by improving spreading, penetration, and absorption on plant leaves. Its less viscous, evaporation-resistant formula ensures longer-lasting effectiveness and compatibility with a wide range of herbicides, making it a must-have for professional and avid gardeners aiming for superior weed control.

## Description

This fits your. Enter your model number to make sure this fits. P.when("ReplacementPartsBulletLoader").execute(function(module){ module.initializeDPX(); }) high quality oil and surfactants/emulsifiers rapid penetration of plant leaf tissue highly recommended as a replacement for non-iconic surfactants less viscous than typical plant oils resists evaporation

Review: As a dedicated gardener and lawn care enthusiast, I have found the Southern Ag Methylated Seed Oil (MSO) Surfactant to be an indispensable tool in my weed control arsenal, earning a glowing 5-star review! This high-quality surfactant has significantly enhanced the effectiveness of my herbicides, helping me achieve the best results in my weed management efforts. The quart-sized bottle provides ample supply for multiple applications, making it a cost-effective option for my gardening needs. A little goes a long way, and the MSO surfactant has proven to be a valuable addition to my gardening toolkit. The surfactant's formulation is top-notch. It improves the spreading and coverage of herbicides, ensuring that the active ingredients reach their target more effectively. This improved coverage translates into better weed control and ultimately saves me time and effort in the long run. The compatibility of the Southern Ag MSO Surfactant with various herbicides is a standout feature. I have used it with different weed control products, and it has consistently enhanced their performance without any adverse effects on my plants. The ease of use is another strong point of this surfactant. Mixing it with my herbicides is a straightforward process, thanks to the clear instructions provided on the label. I appreciate the convenience of being able to use it with both liquid and dry formulations. The methylated seed oil in the surfactant acts as an excellent penetrant, ensuring that the herbicides effectively stick to the weeds and are absorbed more efficiently. This potent combination significantly improves the weed-killing action of the herbicides. I also appreciate the versatility of the Southern Ag MSO Surfactant. Whether I am tackling broadleaf weeds, grassy weeds, or other unwanted vegetation, this surfactant consistently delivers excellent results. Moreover, the quart-sized bottle is easy to store and handle. The resealable cap prevents any spills or leaks, keeping the product fresh and ready for future applications. In conclusion, the Southern Ag Methylated Seed Oil (MSO) Surfactant is a game-changer for any gardener seeking improved herbicide performance and better weed control. Its cost-effectiveness, compatibility with various herbicides, ease of use, and potent formulation make it a standout surfactant for gardening and lawn care needs. Enhance the effectiveness of your herbicides with the Southern Ag MSO Surfactant and achieve a weed-free garden and lawn with ease!
Review: I recently used Southern Ag Methylated Seed Oil (MSO) Surfactant, and I’m honestly impressed. The quality of this adjuvant is outstanding—it’s a high-grade formula designed to maximize the efficacy of selective herbicides. The mixing and compatibility were straightforward, and the product performed flawlessly in my sprayer. It significantly improves herbicide penetration through the waxy leaf cuticles of tough weeds. The overall performance and surface tension reduction exceeded my expectations, especially for the price point. I’d highly recommend this to anyone looking for a reliable, professional-strength surfactant to improve their weed control results.

## Features

- Southern Ag Methylated Seed Oil (MSO) Surfactant, 32oz - 1 Quart

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0149IA526 |
| ASIN  | B0149IA526 |
| Best Sellers Rank | #417,698 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #3,726 in All-Purpose Cleaners |
| Brand | Southern Ag |
| Country of Origin | USA |
| Country of Origin  | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,475) |
| Date First Available  | 15 September 2015 |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 12.7 x 5.1 x 19.6 Centimeters |
| Item Dimensions LxWxH  | 12.7 x 5.1 x 19.6 Centimeters |
| Item Form | Oil |
| Item Weight | 906 g |
| Item Weight  | 906 g |
| Item model number | 48053 |
| Item model number  | 48053 |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Southern Ag |
| Manufacturer  | Southern Ag |
| Net Quantity | 946.35 Milliliters |
| Net Quantity  | 946.35 Milliliters |
| Product Dimensions | 12.7 x 5.08 x 19.56 cm; 907.18 g |
| Product Dimensions  | 12.7 x 5.08 x 19.56 cm; 907.18 g |
| UPC | 051538480574 051538480536 |

## Product Details

- **Brand:** Southern Ag
- **Item Form:** Oil
- **Item Weight:** 32 Ounces
- **Liquid Volume:** 32 Fluid Ounces
- **UPC:** 051538480574 051538480536

## Images

![Southern Ag Methylated Seed Oil (MSO) Surfactant, 32oz - 1 Quart - Image 1](https://m.media-amazon.com/images/I/716rL5ryPaL.jpg)
![Southern Ag Methylated Seed Oil (MSO) Surfactant, 32oz - 1 Quart - Image 2](https://m.media-amazon.com/images/I/71AiDk3WYcL.jpg)

## Questions & Answers

**Q: Does this get mixed in with drive xlr 8 in the pump sprayer or do you apply after the drive is put down**
A: It must be mixed in the solution before application to the weeds. Add about 1/3 of the water to the sprayer and then add the correct amount of Drive XLR 8. Shake this until it's well mixed. Then add the correct amount of Methylated Seed Oil to the mix together with the remaining 2/3rds amount of water. Shake/mix thoroughly.ALSO: while applying the spray to weeds remember to shake the container every few minutes to keep the solution evenly mixed during application!

**Q: do you spray the intier yard are just the crab grass spot itself**
A: As long as we're not talking an acre or more, just the crabgrass.    Be careful that you use just a "squirt" of spray just on the crabgrass.    If you use to much, because it is powerful stuff, it will take out whatever you spray.

**Q: Q: Mixed with xlr8, is this seed oil safe on lawns? I've used XLR8 with no problem on my lawn but want to make sure this additive is also safe.**
A: it is safe to use it.

**Q: What dilution rate do you use?  I know it says 0.4 - 1.5 oz per 1,000 sq.ft but how does that translate to oz per gallon?**
A: I use MSO with Drive XLR8 herbicide (Quinclorac) for Crabgrass control in my Zoysia lawn. I spot spray with a one (1) gallon mixture of 3-1/2 tablespoons Quinclorac, 1-1/2 tablespoons MSO (methylated seed oil) and water. Mix this THOROUGHLY and shake the sprayer tank every few minutes while spraying to keep the mixture well agitated. This has given me good results - provided the soil is moist and the grass is growing well. If the grasses are even mildly drought-stressed I've experienced poor results with Quinclorac.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***N on 3 August 2023*

As a dedicated gardener and lawn care enthusiast, I have found the Southern Ag Methylated Seed Oil (MSO) Surfactant to be an indispensable tool in my weed control arsenal, earning a glowing 5-star review! This high-quality surfactant has significantly enhanced the effectiveness of my herbicides, helping me achieve the best results in my weed management efforts. The quart-sized bottle provides ample supply for multiple applications, making it a cost-effective option for my gardening needs. A little goes a long way, and the MSO surfactant has proven to be a valuable addition to my gardening toolkit. The surfactant's formulation is top-notch. It improves the spreading and coverage of herbicides, ensuring that the active ingredients reach their target more effectively. This improved coverage translates into better weed control and ultimately saves me time and effort in the long run. The compatibility of the Southern Ag MSO Surfactant with various herbicides is a standout feature. I have used it with different weed control products, and it has consistently enhanced their performance without any adverse effects on my plants. The ease of use is another strong point of this surfactant. Mixing it with my herbicides is a straightforward process, thanks to the clear instructions provided on the label. I appreciate the convenience of being able to use it with both liquid and dry formulations. The methylated seed oil in the surfactant acts as an excellent penetrant, ensuring that the herbicides effectively stick to the weeds and are absorbed more efficiently. This potent combination significantly improves the weed-killing action of the herbicides. I also appreciate the versatility of the Southern Ag MSO Surfactant. Whether I am tackling broadleaf weeds, grassy weeds, or other unwanted vegetation, this surfactant consistently delivers excellent results. Moreover, the quart-sized bottle is easy to store and handle. The resealable cap prevents any spills or leaks, keeping the product fresh and ready for future applications. In conclusion, the Southern Ag Methylated Seed Oil (MSO) Surfactant is a game-changer for any gardener seeking improved herbicide performance and better weed control. Its cost-effectiveness, compatibility with various herbicides, ease of use, and potent formulation make it a standout surfactant for gardening and lawn care needs. Enhance the effectiveness of your herbicides with the Southern Ag MSO Surfactant and achieve a weed-free garden and lawn with ease!

### ⭐⭐⭐⭐⭐ Review
*by A***S on 16 December 2025*

I recently used Southern Ag Methylated Seed Oil (MSO) Surfactant, and I’m honestly impressed. The quality of this adjuvant is outstanding—it’s a high-grade formula designed to maximize the efficacy of selective herbicides. The mixing and compatibility were straightforward, and the product performed flawlessly in my sprayer. It significantly improves herbicide penetration through the waxy leaf cuticles of tough weeds. The overall performance and surface tension reduction exceeded my expectations, especially for the price point. I’d highly recommend this to anyone looking for a reliable, professional-strength surfactant to improve their weed control results.

### ⭐⭐⭐⭐⭐ Review
*by W***N on 6 September 2025*

This is a game change for killing crabgrass. Nice combination MSO + Drive Great results on the first application

## Frequently Bought Together

- Southern Ag Methylated Seed Oil (MSO) Surfactant (Quart - 32oz)
- Liquid Harvest Lazer Blue Concentrated Spray Pattern Indicator 8 Ounces Perfect Weed Dye, Herbicide Fertilizer Marking Turf Mark and Marker

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/338471343-southern-ag-methylated-seed-oil-mso-surfactant-32oz-1-quart](https://www.desertcart.nl/products/338471343-southern-ag-methylated-seed-oil-mso-surfactant-32oz-1-quart)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-19*