---
product_id: 5832577
title: "Diquat Aquatic Herbicide (1 Gallon)"
brand: "alligare"
price: "S$196"
currency: SGD
in_stock: true
reviews_count: 5
category: "Alligare"
url: https://www.desertcart.sg/products/5832577-diquat-aquatic-herbicide-1-gallon
store_origin: SG
region: Singapore
---

# Visible results within 1 hour Broad-spectrum weed & algae killer Fast-acting aquatic weed control Diquat Aquatic Herbicide (1 Gallon)

**Brand:** alligare
**Price:** S$196
**Availability:** ✅ In Stock

## Summary

> 🌿 Clear waters, pristine landscapes—weed-free living starts here!

## Quick Answers

- **What is this?** Diquat Aquatic Herbicide (1 Gallon) by alligare
- **How much does it cost?** S$196 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/5832577-diquat-aquatic-herbicide-1-gallon)

## Best For

- alligare enthusiasts

## Why This Product

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

## Key Features

- • **Fish-Safe Formula:** Protect your ecosystem while clearing unwanted growth—safe for fish and aquatic life.
- • **Dual-Purpose Power:** Effective on both aquatic plants and tough terrestrial weeds for versatile landscape care.
- • **Non-Residual Action:** Kills weeds quickly without lingering chemicals, so your environment stays balanced.
- • **Rapid Aquatic Weed Control:** Eliminate floating, submerged, and marginal weeds fast—perfect for ponds and lakes.
- • **Professional-Grade Concentrate:** 128 oz of potent liquid herbicide delivers multiple treatments with precise application.

## Overview

Diquat Aquatic Herbicide is a professional-grade, fast-acting liquid solution designed for broad-spectrum control of aquatic and terrestrial weeds. Its active ingredient, diquat dibromide, delivers visible results within an hour, safely eliminating floating, submerged, and marginal weeds in ponds, lakes, and landscapes without harming fish or leaving residual chemicals.

## Description

Alligare’s Diquat is a fast-acting, non-residual solution that controls weeds in a variety of aquatic environments and is an excellent choice for landscapes and other terrestrial application

Review: This stuff really works!! - This stuff is amazing. I have a lake in my backyard and every spring It starts to grow aquatic weeds. Also with the rains in April and May, it makes the water just kind of cloudy and yuck so I mix up a batch of this and it kills the aquatic leaves, but it’s safe for the fish. I also discovered that this stuff is lethal for any sort of regular weed. I was using regular weed killer and it would take a week or so to actually kill the weeds but never really just knock them out. So when I have extra of this stuff from the Lake. I put it on any weed that I want to annihilate. It kills them within an hour or so. I like that because they stay dead. They do not come back from this stuff. It is a little expensive to use as a total weed killer and you do need to have a soap or something so that it adheres to the weeds and you add it in your mixture when you’re using this... You use water, this stuff and I forget the name of what the soap thing is supposed to be called and you mix those three things together and you have your mixture. I get two batches out of each of these bottles. That requires two bottles of the soap stuff. I mix those in a sprayer and I’m good to go! This is good stuff!
Review: Small Pond Additive. - We have a small pond and this product helped with the midsummer bloom.

## Features

- Diquat Herbicide is for weed/algae control in and around ponds, lakes, commercial greenhouses and nurseries, landscapes, industrial land, recreational land, residential lawns, and public areas
- Control of aquatic weeds
- Broad-spectrum control of floating, submersed and marginal weeds
- Active Ingredient: Diquat dibromide

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00C4Y228S |
| Active Ingredients | Herbicide |
| Best Sellers Rank | #19,616 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #137 in Weed Killers |
| Brand | ALLIGARE |
| Date First Available | December 10, 2011 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 2 pounds |
| Item model number | Diquat epro 1 |
| Liquid Volume | 128 Fluid Ounces |
| Manufacturer | Alligare |
| Package Dimensions | 10.5 x 6.5 x 4.5 inches |
| Unit Count | 128.0 Ounce |

## Product Details

- **Active Ingredients:** Herbicide
- **Brand:** ALLIGARE
- **Item Form:** Liquid
- **Item Weight:** 2 Pounds
- **Liquid Volume:** 128 Fluid Ounces

## Images

![Diquat Aquatic Herbicide (1 Gallon) - Image 1](https://m.media-amazon.com/images/I/71A2t7wDDUL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This stuff really works!!
*by E***9 on May 15, 2025*

This stuff is amazing. I have a lake in my backyard and every spring It starts to grow aquatic weeds. Also with the rains in April and May, it makes the water just kind of cloudy and yuck so I mix up a batch of this and it kills the aquatic leaves, but it’s safe for the fish. I also discovered that this stuff is lethal for any sort of regular weed. I was using regular weed killer and it would take a week or so to actually kill the weeds but never really just knock them out. So when I have extra of this stuff from the Lake. I put it on any weed that I want to annihilate. It kills them within an hour or so. I like that because they stay dead. They do not come back from this stuff. It is a little expensive to use as a total weed killer and you do need to have a soap or something so that it adheres to the weeds and you add it in your mixture when you’re using this... You use water, this stuff and I forget the name of what the soap thing is supposed to be called and you mix those three things together and you have your mixture. I get two batches out of each of these bottles. That requires two bottles of the soap stuff. I mix those in a sprayer and I’m good to go! This is good stuff!

### ⭐⭐⭐⭐⭐ Small Pond Additive.
*by D***Y on January 29, 2026*

We have a small pond and this product helped with the midsummer bloom.

### ⭐⭐⭐⭐⭐ works well on duckweed and coonweed
*by T***G on June 15, 2024*

I started using diquat in 2023 my 1 acre pond was 100% covered with duckweed and coon weed coming from the bottom I started treating it in June the results were visible within 2 days my pond has trees on all 4 sides so after reading everything I could find on duckweed I knew this was going to be a long process I would treat my pond every two weeks and since there are no fish I more or less sterilized it by fall it was 95% clear of duckweed and coon weed but since duckweed sinks to the bottom in the winter I knew that some would come back and in 2024 it did but only a small amount I sprayed it in May 2024 in killed most of it but I will tell you no matter what the experts say if your pond has trees around it is the leaves that fall in your pond is where duckweed gets what it get what it needs to grow I'm not sure if you can completely kill it 100% but I have a clear pond now but after going through what I did it was worth the time and money to get a beautiful pond back I had used several different types of products but with duck weed don't waste your money on anything but diquat they do make a product that will clear up the muck on the bottom but it is extremely expensive and has to be used yearly and new leaves fall in every year I decided diquat was my best option.

## Frequently Bought Together

- Alligare Diquat Herbicide - 128oz
- Cutrine-Plus Liquid Algaecide - 1 Gallon Professional-Grade Algae Killer for Lakes & Ponds, EPA Approved to Control All Types of Algae (Planktonic, Filamentous, and Chara)
- Plex Mate Aquatic Surfactant for Herbicides – Quart- Non-Ionic, Increase Product Coverage, Increase Product Penetration, Increase Product Effectiveness

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-19*