For most home gardeners, the correct Gallup dilution rate is 15ml of concentrate per litre of water for annual grasses and annual broad-leaved weeds. Tougher perennial weeds need more: Gallup Biograde 360 should be mixed at 25ml per litre, while Gallup XL calls for 20-30ml per litre. The exact rate depends on which Gallup product you have and what you are treating.
Gallup comes in several formulations, and the rates differ between them. Here is a quick reference:
| Product | Weed type | Dilution rate |
|---|---|---|
| Gallup Home & Garden | Annual grasses and annual broad-leaved weeds | 15ml per litre |
| Gallup Biograde 360 | Annual grasses and annual broad-leaved weeds | 15ml per litre |
| Gallup Biograde 360 | Most perennial weeds | 25ml per litre |
| Gallup XL Super Strength | Annual and perennial grasses, most broad-leaved weeds | 20-30ml per litre |
Barclay, the manufacturer, lists 24ml per litre as the standard rate for Gallup H&G, Gallup XL, and Gallup Biograde 360 when used in a knapsack sprayer. That figure sits neatly between the annual and perennial rates, so if you are treating a mixed patch, 24ml is a reasonable middle ground.
Gallup Home & Garden has an application rate of 3 litres of concentrate per hectare for annual weed control, according to Agrigem. A hectare is 10,000 square metres, so for a typical back garden of around 50 square metres you would use a very small amount of concentrate. At 15ml per litre, a single litre of concentrate makes roughly 66 litres of diluted spray, enough to treat a large area several times over.
Annual weeds, such as groundsel and chickweed, germinate, seed, and die within a single season. Their root systems are shallow and they absorb glyphosate easily, so 15ml per litre is enough to kill them. Perennial weeds, including docks, nettles, and couch grass, store energy in deep root systems and need a higher concentration to ensure the herbicide moves all the way down to the roots. That is why Gallup Biograde 360 steps up to 25ml per litre for perennials, and why Gallup XL's upper rate of 30ml per litre is reserved for stubborn cases.
Check the label before you mix anything. Gallup Home & Garden comes in a 1-litre size and is the version most commonly sold in garden centres. Gallup XL is marketed as a professional-strength formula, available in 5-litre containers from retailers such as Gardeners Dream. Gallup Biograde 360 is also sold in 5-litre sizes and is stocked by trade suppliers including Hygiene Supplies Direct. The product name is printed clearly on the bottle; if you are unsure, the batch number on the cap can be cross-referenced with the Barclay product database.
Gallup XL product listings on Gardeners Dream carry a reminder that, under DEFRA and HSE rules, anyone applying pesticides professionally must have received adequate training and hold the relevant certification. For home garden use that requirement does not apply, but the label guidance on dilution, protective equipment, and re-entry intervals still applies to everyone.
## Quotations > Dilute 20 - 30ml of the weed killer concentrate per 1 litre of water and works best when used in a sprayer. > — Product listing (Gardeners Dream) (https://www.gardenersdream.co.uk/products/5l-gallup-xl-super-strength-professional-glyphosate-weed-killer) > By law, everyone who uses pesticides professionally must have received adequate training in using pesticides safely and be skilled in the job they are carrying out. > — DEFRA/HSE Code for the Safe use of Pesticides, cited on Gardeners Dream (https://www.gardenersdream.co.uk/products/5l-gallup-xl-super-strength-professional-glyphosate-weed-killer) ## Frequently asked questions ### how much gallup per litre of water For annual weeds, dilute 15ml of Gallup Home & Garden or Gallup Biograde 360 per litre of water. For tougher perennial weeds, use 25ml per litre of Gallup Biograde 360, or 20-30ml per litre of Gallup XL Super Strength. The exact rate depends on which Gallup product you have and the type of weed you're treating. ### gallup xl dilution rate per litre Gallup XL Super Strength should be diluted at 20-30ml of concentrate per 1 litre of water. This stronger formulation is designed to control both annual and perennial grasses as well as most broad-leaved weeds. ### gallup biograde 360 how to dilute Dilute Gallup Biograde 360 at 15ml per litre of water for annual grasses and annual broad-leaved weeds. For most perennial weeds, increase the dilution to 25ml per litre. Always mix thoroughly and use in a sprayer for best results. ### what is the correct dilution for gallup home and garden Gallup Home & Garden should be diluted at 15ml of concentrate per 1 litre of water for controlling annual grasses and annual broad-leaved weeds. This dilution rate applies to most home garden applications. ### gallup knapsack sprayer dilution rate According to the manufacturer Barclay, the standard dilution rate for Gallup H&G, Gallup XL, or Gallup Biograde 360 in a knapsack sprayer is 24ml of product per 1 litre of water. ## Sources 1. [Gallup Home & Garden Glyphosate Industrial Strength Weed Killer 1L](https://www.agrigem.co.uk/product/gallup-h-g-1l/?srsltid=AfmBOop_rjSTsO3g3G-YWHtU6lqPOhvVf_6SnuGHk0Z5odJ8-tlbWMvI) (www.agrigem.co.uk) 2. [What is the dilution ratio for Gallup XL weed killer? - Facebook](https://www.facebook.com/groups/1628885357355858/posts/3247486108829100/) (www.facebook.com) 3. [5L Gallup XL Super Strength Glyphosate Weed Killer | Weed Killer – Gardeners Dream](https://www.gardenersdream.co.uk/products/5l-gallup-xl-super-strength-professional-glyphosate-weed-killer?srsltid=AfmBOoq8-27rzIE4PX-GjevjYPFQQKp34IhUPDgC2FQgjVrBvPKCw-hq) (www.gardenersdream.co.uk) 4. [Gallup 360 Biograde Glyphosate Concentrated Weed Killer, 5 Litres](https://www.hygienesuppliesdirect.com/products/prod251006-gallup-biograde-360-5-litre) (www.hygienesuppliesdirect.com) 5. [Frequently Asked Questions](https://www.barclay.ie/faq/) (www.barclay.ie)