---
product_id: 5832577
title: "Alligare Diquat Aquatic Herbicide to Control Bluegrass, Duckweed, Hydrilla & More - Glyphosate Alternative, Fast-Acting Non-Selective Liquid Weed Killer for Aquatic & Landscape Use - 1 Gallon (128oz)"
brand: "alligare"
price: "VT43578"
currency: VUV
in_stock: true
reviews_count: 8
category: "Alligare"
url: https://www.desertcart.vu/products/5832577-alligare-diquat-aquatic-herbicide-to-control-bluegrass-duckweed-hydrilla-more
store_origin: VU
region: Vanuatu
---

# Kills weeds within an hour Broad-spectrum aquatic & terrestrial weed control Fast-acting liquid formula Alligare Diquat Aquatic Herbicide to Control Bluegrass, Duckweed, Hydrilla & More - Glyphosate Alternative, Fast-Acting Non-Selective Liquid Weed Killer for Aquatic & Landscape Use - 1 Gallon (128oz)

**Brand:** alligare
**Price:** VT43578
**Availability:** ✅ In Stock

## Summary

> 🌿 Dominate your landscape and waterscape—weed-free is the new luxury!

## Quick Answers

- **What is this?** Alligare Diquat Aquatic Herbicide to Control Bluegrass, Duckweed, Hydrilla & More - Glyphosate Alternative, Fast-Acting Non-Selective Liquid Weed Killer for Aquatic & Landscape Use - 1 Gallon (128oz) by alligare
- **How much does it cost?** VT43578 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/5832577-alligare-diquat-aquatic-herbicide-to-control-bluegrass-duckweed-hydrilla-more)

## 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:** Controls weeds without harming aquatic life, preserving your ecosystem’s balance.
- • **Dual-Purpose Power:** Effective for both aquatic environments and terrestrial landscapes—one solution for all your weed woes.
- • **Long-Lasting Results:** Non-residual action ensures weeds stay dead—no annoying regrowth to slow you down.
- • **Rapid Aquatic Weed Control:** Targets floating, submerged, and marginal weeds with precision and speed.
- • **Professional Grade Coverage:** Generous 1-gallon size covers extensive areas, perfect for lakes, ponds, and large properties.

## Overview

Alligare’s Diquat Aquatic Herbicide is a fast-acting, liquid herbicide designed for broad-spectrum control of aquatic and terrestrial weeds. Its fish-safe, non-residual formula kills weeds within an hour, ensuring long-lasting results across ponds, lakes, commercial greenhouses, and residential lawns. Packaged in a 1-gallon bottle, it offers professional-grade coverage for diverse environments.

## Description

desertcart.com : Alligare Diquat Aquatic Herbicide to Control Bluegrass, Duckweed, Hydrilla & More - Glyphosate Alternative, Fast-Acting Non-Selective Liquid Weed Killer for Aquatic & Landscape Use - 1 Gallon (128oz) : Weed Killers : Patio, Lawn & Garden

Review: Pre mix so it goes along way - Gets rid of the weeds n never bothered the fish.use about two weeks apart.
Review: WORKS WELL ! - Works well for clearing large areas that have weeds and brush. Kills most vegetation by the next day, if used at recommended dilution.

## Features

- INSTANT WEED CONTROL: Expect visible results within hours, as hydrilla killer starts working immediately on contact with green plant tissue, making it an ideal solution when fast, effective weed control is needed with minimal downtime
- GLYPHOSATE-FREE POWER: This non-selective aquatic herbicide for ponds provides broad-spectrum control without using glyphosate. It works quickly to kill a wide range of weeds and is ideal for those looking for an efficient and fast-acting substitute
- RELIABLE ACROSS ALL TERRAINS: Whether treating water bodies or overgrown ground, the aquatic weed control performs across both aquatic and land environments with consistent results. It is designed for use in ponds, lakes, drainage areas, and landscapes
- TAKES DOWN TOUGHEST WEEDS: Our weed killer for ponds controls aggressive weeds such as duckweed, hydrilla, water hyacinth, & annual bluegrass. Our formula is built to handle hard-to-kill species and is ideal for restoring clean, manageable outdoor areas TAKES DOWN TOUGHEST WEEDS: Our weed killer for ponds controls aggressive weeds such as duckweed, hydrilla, water hyacinth, & annual bluegrass. Our formula is built to handle hard-to-kill species and is ideal for restoring clean, manageable outdoor areas
- RESIDUE-FREE REPLANTING: With 37.3 percent diquat dibromide, this weed and grass killer delivers quick control without leaving harmful residues. Safe for replanting after application, it supports sustainable weed management and soil health

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00C4Y228S |
| Active Ingredients | Herbicide |
| Best Sellers Rank | #8,942 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #109 in Weed Killers |
| Brand | ALLIGARE |
| Brand Name | ALLIGARE |
| Coverage | Various aquatic environments |
| Customer Reviews | 4.6 out of 5 stars 1,263 Reviews |
| Included Components | 1 gallon bottle of Alligare Diquat |
| Item Form | Liquid |
| Item Weight | 2 Pounds |
| Liquid Volume | 128 Fluid Ounces |
| Manufacturer | Alligare |
| Model Number | Diquat epro 1 |
| Part Number | Diquat epro 1 |
| Unit Count | 128.0 Fluid Ounces |

## Product Details

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

## Images

![Alligare Diquat Aquatic Herbicide to Control Bluegrass, Duckweed, Hydrilla & More - Glyphosate Alternative, Fast-Acting Non-Selective Liquid Weed Killer for Aquatic & Landscape Use - 1 Gallon (128oz) - Image 1](https://m.media-amazon.com/images/I/71Z6rb2OrpL.jpg)
![Alligare Diquat Aquatic Herbicide to Control Bluegrass, Duckweed, Hydrilla & More - Glyphosate Alternative, Fast-Acting Non-Selective Liquid Weed Killer for Aquatic & Landscape Use - 1 Gallon (128oz) - Image 2](https://m.media-amazon.com/images/I/71dQGeYQh1L.jpg)
![Alligare Diquat Aquatic Herbicide to Control Bluegrass, Duckweed, Hydrilla & More - Glyphosate Alternative, Fast-Acting Non-Selective Liquid Weed Killer for Aquatic & Landscape Use - 1 Gallon (128oz) - Image 3](https://m.media-amazon.com/images/I/81vERe0ziXL.jpg)
![Alligare Diquat Aquatic Herbicide to Control Bluegrass, Duckweed, Hydrilla & More - Glyphosate Alternative, Fast-Acting Non-Selective Liquid Weed Killer for Aquatic & Landscape Use - 1 Gallon (128oz) - Image 4](https://m.media-amazon.com/images/I/81k6MZvQArL.jpg)
![Alligare Diquat Aquatic Herbicide to Control Bluegrass, Duckweed, Hydrilla & More - Glyphosate Alternative, Fast-Acting Non-Selective Liquid Weed Killer for Aquatic & Landscape Use - 1 Gallon (128oz) - Image 5](https://m.media-amazon.com/images/I/814icwXmyPL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Pre mix so it goes along way
*by G***E on April 17, 2026*

Gets rid of the weeds n never bothered the fish.use about two weeks apart.

### ⭐⭐⭐⭐⭐ WORKS WELL !
*by Q***S on March 28, 2026*

Works well for clearing large areas that have weeds and brush. Kills most vegetation by the next day, if used at recommended dilution.

### ⭐⭐⭐⭐⭐ Effective for both lake weed control and ground plants
*by W***E on July 13, 2020*

I've been using this chemical to control lake weeks for about 10 years. Here is what I've learned. This company (Lawn & Pest Control Supply) packs the product properly - with a tape seal and plastic bag - so that it can be easily unpacked. Do not purchase from NuFarm, they glue the lids closed with sealant so that the lids are impossible to remove without making a mess. Safety - this is super concentrated - wear gloves and SAFETY GLASSES - do not get it on your skin. I always pressure/leak test my spray rig before adding this chemical. Lake application - We use this to control underwater weeds in about 25 acres of a 40 acre lake. For preventative maintenance we apply a gallon every 3 (water temperature 85+) to 5 weeks (water temperature 55 to 65) using a 25 gallon sprayer to inject 3' below the water (in the sunlight zone). Never use more than 2 gallons (don't treat your entire lake at once!) because all the weeds will die and float making a big mess and killing your fish when the weeds decompose (taking all the oxygen from the water). I dilute 20 gallons of water to 1 gallon of water, injected at 4 gpm (2 down tubes) driving the boat at idle and holding a beer in the hand does the trick. Weeds need to be green/actively growing and in the sunlight zone (about 3' below the water) for this to work. Adding a gallon of copper improves the efficacy and makes the water more clear, although this year I am experimenting with coarse copper granules sprinkled in the root zones which seems to retard growth pretty well but does not kill unless applied at about a pound per 5 square feet. Do not apply below 50 degree water temp, the weeds must be growing and get sunlight for this product to work. Maximum efficacy by applying with at least 4 hours of sunlight after application and do not stir up the mud or all the chemical will bind with the mud instead of the leaves. Our lake is spring fed so it would be too expensive to dye. Using the diquat/copper combination we are able to keep the weeds under control and also maintain a healthy habitat. I also add a little bit of blue pond dye to help me see where I have applied. TIP - make sure to rinse your spray equipment with lots of clear water after use, this chemical is highly corrosive. Also it does stain fiberglass and carpet. I have also tried this chemical for killing weeds and grass at my house, at ~2oz per quart and it killed everything. Again be sure to spray when sun is forecast, this chemical works by interrupting the photosynthesis.

## Frequently Bought Together

- Alligare Diquat Herbicide - 128oz
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- 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 Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-14*