Double Action Weedkiller Concentrate 1020ml

FAQs

What weeds does it work on?

It works on most weeds including ground elder, bindweed, stinging nettles, chickweed, couch grass as well as moss and algae.

Are there any weeds it doesn’t kill?

Yes, Japanese Knotweed, ivy and horsetail.

Can I use it on lawn weeds?

No, it will kill the grass as well as the weeds! For safe control of lawn weeds, use a specific lawn weedkiller, such as Vitax Lawn Clear 2.

How quickly does it work?

You can see results fast, within 24 hours. In warm sunny weather, results can usually be seen even faster.

What’s the dilution rate of the concentrate?

Add 85ml of concentrate per 500ml of water.

How long can I use the diluted concentrate solution?

It’s at its most effective for 24 hours after diluting.

How do I get the best results?

The weeds must be dry before application and don’t spray if it’s likely to rain within 4 hours after application. Spray all of the green parts of the plant. Drench the weeds thoroughly to ensure the best possible absorption of the active ingredients.

When using in summer or on very warm days, spray in the cool of the evening. If you spray when it’s warmer, much of the chemical will evaporate before the plants have had chance to absorb it.

Does the size of the weeds matter?

Double Action Weedkiller can be used on all sizes of weed. But the effect is better when the green surface area of the weed is as large as possible so that the maximum amount of active ingredient can penetrate the leaves and reach the roots. Best effects, and minimum use of the weedkiller, is with weeds 5-10cm (2-4in) high.

Will any weeds grow back?

Most weeds will be killed outright, but some well-established perennial weeds may produce some re-growth a few weeks after spraying and this will need another application of weedkiller. Further applications may be needed, depending on the severity of the infestation

Can I use it in cooler months?

Unlike many weedkillers, which only work in warm weather, mine works in cool weather too, but only if the temperature is above 7C. Weeds will die back more slowly in cooler weather. Once the temperature is above 10C, it works faster.

How soon can I sow or plant after using your weedkiller?

The weedkiller biodegrades in contact with the soil, so you can sow or plant 24 hours after spraying.

Can I apply it in a watering can?

We don’t recommend applying Double Action Weedkiller in a watering can. This is because it is more accurate/precise in a sprayer, and the water droplet size when applied by watering can is much larger, so the weedkiller doesn’t work as effectively.

Is it safe to use around children and pets?

The active ingredients in Richard’s Double Action Weedkiller are Maleic Hydrazide and Pelargonic Acid (taken from pelargonium plants). Both are regarded as being safe to human and animal health (maleic hydrazide is sprayed on potatoes and onions and other root crops to stop them sprouting in storage!). Keep them out of the area when spraying and while it is drying. Pets and children  can re-enter the treated area once the product has dried.

Always follow the instructions on the container and store it securely in a safe place.