---
product_id: 282989045
title: "Southern Ag Methylated Seed Oil (MSO) Surfactant, 32oz - 1 Quart"
brand: "southern ag"
price: "13680 kr"
currency: ISK
in_stock: true
reviews_count: 5
category: "Southern Ag"
url: https://www.desertcart.is/products/282989045-southern-ag-methylated-seed-oil-mso-surfactant-32oz-1-quart
store_origin: IS
region: Iceland
---

# Rapid leaf tissue penetration High oil & surfactant load Superior herbicide spreading Southern Ag Methylated Seed Oil (MSO) Surfactant, 32oz - 1 Quart

**Brand:** southern ag
**Price:** 13680 kr
**Availability:** ✅ In Stock

## Summary

> 🌱 Unlock the full potential of your herbicides—because your lawn deserves the best!

## Quick Answers

- **What is this?** Southern Ag Methylated Seed Oil (MSO) Surfactant, 32oz - 1 Quart by southern ag
- **How much does it cost?** 13680 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/282989045-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

- • **Maximize Herbicide Power:** Boosts post-emergent herbicide efficiency for faster, stronger weed control.
- • **All-in-One Spray Adjuvant:** Replaces nonionic surfactants with a high-performance, less viscous alternative.
- • **Rapid Penetration Formula:** Quickly dissolves leaf cuticle waxes for deeper herbicide absorption.
- • **User-Friendly & Versatile:** Easy mixing with liquid or dry herbicides, compatible with most formulations.
- • **Consistent Coverage Every Time:** Spreads herbicides and insecticides evenly for reliable results across your lawn.

## Overview

Southern Ag Methylated Seed Oil (MSO) Surfactant is a 32oz spray adjuvant designed to enhance the effectiveness of post-emergent herbicides. Featuring a high oil and surfactant load with an integrated antifoam system, it ensures rapid penetration and even spreading on plant leaves. This product replaces traditional nonionic surfactants, offering superior herbicide absorption and consistent weed control across various formulations. Ideal for professional and home gardeners seeking efficient, reliable lawn care solutions.

## Description

Spray Adjuvant for PostEmergence Applications with Herbicides. This product is a spray adjuvant developed to maximize the performance of most postemergent herbicides. In most post emergentce herbicide spray mixes, this product may be used as a replacement for nonionic surfactants. Use at 14 pints per acre (0.4 1.5 oz per 1,000 sq.ft) with most post emergent herbicides or in accordance with manufacturers recommendations. high oil and surfactant load with integrated antifoam system rapid penetration of plant leaf tissue more efficient than nonionic surfactants less viscous than typical plant oils maximum utilization and performance in every drop spreads herbicides and insecticides quickly and evenly over the leaf surface eliminates the need of mixing additional separate additives faster at dissolving leaf cuticle waxes for improved control of larger weeds allows for more efficient herbicide absorption, providing consistency over a wide ra

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: Tried other Surfacants, this was by far my favorite. Mixed easily in tank sprayer. Provided excellent adhesion of herbicides to troublesome weeds, best results I’ve ever had.

## Features

- Item Category: Outdoor Living
- Item Trademark: GC Dry Mo
- manufacturer: Generic

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0149IA526 |
| Batteries Included? | No |
| Brand | Southern Ag |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,476) |
| Date First Available | 28 May 2019 |
| Is Discontinued By Manufacturer | No |
| Item model number | 48053 |
| Manufacturer | Southern Ag |
| Product Dimensions | 12.7 x 5.08 x 19.56 cm; 907.18 g |
| Weight | 5 Pounds |

## Product Details

- **Brand:** Southern Ag
- **Item form:** Spray
- **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)

## 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 J***W on 21 January 2026*

Tried other Surfacants, this was by far my favorite. Mixed easily in tank sprayer. Provided excellent adhesion of herbicides to troublesome weeds, best results I’ve ever had.

### ⭐⭐⭐⭐⭐ 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.

## 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.is/products/282989045-southern-ag-methylated-seed-oil-mso-surfactant-32oz-1-quart](https://www.desertcart.is/products/282989045-southern-ag-methylated-seed-oil-mso-surfactant-32oz-1-quart)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-19*