---
product_id: 28067041
title: "Methylated Seed Oil (MSO) Surfactant (Quart - 32oz)"
brand: "southern ag"
price: "€ 81.00"
currency: EUR
in_stock: true
category: "Southern Ag"
url: https://www.desertcart.be/products/28067041-methylated-seed-oil-mso-surfactant-quart-32oz
store_origin: BE
region: Belgium
---

# Rapid leaf tissue penetration Less viscous, fast absorption Evaporation resistant formula Methylated Seed Oil (MSO) Surfactant (Quart - 32oz)

**Brand:** southern ag
**Price:** € 81.00
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your lawn game with Southern Ag MSO – the secret weapon for unstoppable weed control!

## Quick Answers

- **What is this?** Methylated Seed Oil (MSO) Surfactant (Quart - 32oz) by southern ag
- **How much does it cost?** € 81.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/28067041-methylated-seed-oil-mso-surfactant-quart-32oz)

## 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

- • **Rapid Penetration:** Delivers active ingredients deep into leaf tissue for faster results
- • **Evaporation Defense:** Formulated to resist evaporation, ensuring longer-lasting effectiveness
- • **Sleek & Lightweight:** Less viscous than typical oils for smoother, more efficient application
- • **Trusted Replacement:** Highly recommended alternative to non-ionic surfactants and petroleum oils
- • **Maximize Herbicide Power:** Boost your post-emergent sprays with superior surfactant action

## Overview

Southern Ag Methylated Seed Oil (MSO) Surfactant is a premium spray adjuvant designed to enhance the efficacy of post-emergent herbicides. Featuring a high-quality blend of methylated seed oils and emulsifiers, it ensures rapid penetration into plant leaf tissue while resisting evaporation. Less viscous than typical plant oils, it offers smooth application and is a highly recommended replacement for non-ionic surfactants and petroleum-based crop oils. Ideal for use with a variety of herbicides, this 32oz quart bottle delivers broad-spectrum, non-selective coverage trusted by thousands of lawn care professionals.

## Description

Methylated Seed OilThis product is a spray adjuvant developed to maximize the performance of most post-emergent herbicides. In most postemergence herbicide spray mixes this product may be used as a replacement for non-ionic surfactants and crop oil (petroleum oils). It may be used in products such as Accent, Assert, Poast, Revolver, and other herbicides. High-quality oil and surfactants/emulsifiersrapid penetration of plant leaf tissuehighly recommended as a replacement for non-iconic surfactantsless viscous than typical plant oilsresists evaporationUsage: Use at 1 - 4 pints per acre with post-emergent herbicides. Higher rates may be necessary for some applications. Active Ingredients: Methylated seed oil blend and other principal functioning agents - 100%Product Label

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0149IA526 |
| Best Sellers Rank | #6,686 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #93 in Weed Killers |
| Brand Name | Southern Ag |
| Coverage | non-selective broad spectrum coverage |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,604) |
| Included Components | 1 bottle |
| Item Form | Spray |
| Item Type Name | Surfactant |
| Item Weight | 2 pounds |
| Liquid Volume | 32 fluid ounces |
| Manufacturer | Southern Ag |
| Model Number | 48053 |
| Number of Packs | 1 |
| Part Number | 48053 |
| UPC | 051538480574 051538480536 |
| Unit Count | 32 Fluid Ounces |

## Product Details

- **Brand:** Southern Ag
- **Item Form:** Spray
- **Item Weight:** 2 pounds
- **Liquid Volume:** 32 fluid ounces
- **UPC:** 051538480574 051538480536

## Images

![Methylated Seed Oil (MSO) Surfactant (Quart - 32oz) - 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.

## 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.be/products/28067041-methylated-seed-oil-mso-surfactant-quart-32oz](https://www.desertcart.be/products/28067041-methylated-seed-oil-mso-surfactant-quart-32oz)

---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-09-25*