---
product_id: 76083421
title: "MSO (Methylated Seed Oil) Quart"
brand: "prosolutions"
price: "€ 42.52"
currency: EUR
in_stock: true
reviews_count: 8
category: "Pro Solutions"
url: https://www.desertcart.it/products/76083421-mso-methylated-seed-oil-quart
store_origin: IT
region: Italy
---

# Speeds herbicide absorption Optimized for tough waxy weeds Enhances leaf coverage MSO (Methylated Seed Oil) Quart

**Brand:** prosolutions
**Price:** € 42.52
**Availability:** ✅ In Stock

## Summary

> 🌱 Stick it, kill it, win the lawn game!

## Quick Answers

- **What is this?** MSO (Methylated Seed Oil) Quart by prosolutions
- **How much does it cost?** € 42.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/76083421-mso-methylated-seed-oil-quart)

## Best For

- prosolutions enthusiasts

## Why This Product

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

## Key Features

- • **Accelerated Action:** Speeds up weed and tree die-off by 4-5 days
- • **Versatile Application:** Ideal for hard-to-kill waxy leaf plants and invasive species
- • **Specialized Formulation:** Tailored for postemergence herbicides like Quinclorac
- • **Maximize Herbicide Efficiency:** Boosts chemical adhesion for superior weed control
- • **Weather-Resistant Performance:** Reduces impact of adverse environmental conditions

## Overview

ProSolutions MSO Quart is a premium methylated seed oil surfactant designed to dramatically improve herbicide performance by enhancing leaf coverage and absorption. Perfect for tough, waxy-leaf weeds and postemergence chemicals like Quinclorac, it accelerates weed kill rates by up to 5 days while minimizing environmental setbacks—making it a must-have for professional-grade lawn and garden care.

## Description

ProSolutions MSO is a uniquely formulated spray adjuvant to enhance the performance of certain postemergence chemicals. ProSolutiuons MSO improves leaf coverage and absorption, thereby reducing the negative effects of adverse environmental conditions.

Review: Used as a surfactant to improve the effectriveness of weed killers. - I add this as a surfactant to the weed killer mix I use in my compression sprayer. Surfactants are chemical compounds that decrease the surface tension between two liquids, The idea is to get the weed killer to stick to the leaves of a certain difficult clover that difficult to kill without it. This clover is not the normal clover that provides good luck, rather a more weedy clover.
Review: Helps kill waxy leaf trees and weeds - I usually add an ounce to a gallon of 20% Triclopyr 4 with diesel fuel for killing American Holly trees, prickly pad cacti, greenbrier (smilax), torpedo grass, blackberry brier and other hard to kill weeds with waxy stems and leaves. I notice a 4-5 day faster rate of deadening with the MSO than without it especially on trees in the same concentrations. Recommended.

## Features

- Works as a surfactant to help herbicides stick to the plant leaves.
- If using Quinclorac, MSO is recommended instead of a non ionic surfactant

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FQXB5K3 |
| Best Sellers Rank | #232,934 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #987 in Weed & Moss Control |
| Brand | ProSolutions |
| Date First Available | July 20, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Liquid Volume | 1 Quarts |
| Manufacturer | ProSolutions |
| UPC | 859766006180 |
| Unit Count | 32 Fluid Ounces |

## Product Details

- **Brand:** ProSolutions
- **Item Form:** Liquid
- **Liquid Volume:** 1 Quarts
- **Manufacturer:** ProSolutions
- **UPC:** 859766006180

## Images

![MSO (Methylated Seed Oil) Quart - Image 1](https://m.media-amazon.com/images/I/51Af8z8QCaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Used as a surfactant to improve the effectriveness of weed killers.
*by P***S on June 30, 2025*

I add this as a surfactant to the weed killer mix I use in my compression sprayer. Surfactants are chemical compounds that decrease the surface tension between two liquids, The idea is to get the weed killer to stick to the leaves of a certain difficult clover that difficult to kill without it. This clover is not the normal clover that provides good luck, rather a more weedy clover.

### ⭐⭐⭐⭐⭐ Helps kill waxy leaf trees and weeds
*by R***E on November 9, 2023*

I usually add an ounce to a gallon of 20% Triclopyr 4 with diesel fuel for killing American Holly trees, prickly pad cacti, greenbrier (smilax), torpedo grass, blackberry brier and other hard to kill weeds with waxy stems and leaves. I notice a 4-5 day faster rate of deadening with the MSO than without it especially on trees in the same concentrations. Recommended.

### ⭐⭐⭐⭐⭐ Worked very well
*by C***R on October 10, 2018*

I applied this at the recommended application rate of 2 teaspoons per gallon of 8.8% Trichlopyl to kill trees. I sprayed it on a small tree with 5" thick trunk that forked out with two side branches. It killed it very well. I sprayed it directly on the bark and didn't even have to cut or score the tree. The methylated seed oil not only acts as a surfactant, but it also facilitates absorbtion of herbicides through the bark of trees or thick brush, so this product works as advertised. Normally I'd have to cut the trees down with a chainsaw and use an axe to hack up the trunk so it will absorb the Trichlopyl, so using this product makes the job a lot easier. Just spray and walk away.

## Frequently Bought Together

- ProSolutions MSO (Methylated Seed Oil) Quart
- Triclopyr 4 EC Compare to Garlon 4 and Remedy 1 Quart
- Liquid Harvest Lazer Blue Concentrated Spray Pattern Indicator 8 Ounces Perfect Weed Dye, Herbicide Fertilizer Marking Turf Mark and Marker

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-21*