Some of the 3 star reviewers stated that the product killed most but not all of the weeds. This highlights the fact that Weedol kills over 99% of weeds but not 100%, there are a few species that won’t respond to the product and may need to be manually pulled out or treated with different chemicals. They typically come as part of a ready to use lawn feed and weed type of product but rarely as a stand-alone weedkiller. This applies primarily to blanket spraying the whole lawn. Growth should be good and the grass healthy before applying weed killer. If possible apply:

Do not mix weed killer with moss killer or ferrous sulphate. If you need to kill moss AND weeds do it at least a week apart. However, if your lawn is currently inhabited by lots of weeds, a feed and weed probably won’t help.

How often can you use lawn weed killers?

If you don’t have many weeds in your lawn and you prefer feed and weed products instead of applying a separate fertiliser and weedkiller, then, by all means, use one.

For complete weed control a concentrate will do as good a job as ‘ready to use’ and vice versa. Use them according to the kind of treatment required. You may have noticed that weed killers are not made of the same chemicals. A lawn weed killer is a carefully selected group of active ingredients designed to kill a certain group of creeping and broad leaved weeds. Not all weed killers will kill all your lawn weeds hence you need to use a range of active ingredients to give yourself the best chance of good weed control. We have therefore selected two groups of weed killers that offer the broadest range of active ingredients so that if one doesn’t kill a certain weed the other may do. Use one group of chemicals for ‘full lawn treatment’ and the other group for ‘spot treatment’. If you only need to ‘spot treat’ then have two different ones on hand or when one runs out buy a different one to replace it. How to use two different Weed Killer Products Lawnsmith Option 1 When it comes to applying it, be very careful not to overdo it. The combination of high nitrogen, iron sulphate and weed killing chemicals can scorch your lawn if you’re too heavy-handed with the application. It much better to apply a little less than too much. I looked at the chemicals in Weedol and from my research, I believe it will be effective against 99% of the weeds most commonly found in UK lawns but I know from my past use that there are a few species of weeds that won’t respond to it (mostly non-broad-leaved weeds). Yes, an amateur weedkiller concentrate might not be as strong as a professional product and that is for reasons of safety. That said, all it means is that you need more concentrate to dilute into water than you would a professional product. However, don’t expect them to die within 24 hours as other weedkillers claim. It can take a week or so to see results. However, this is due to the fact that it doesn’t contain Glyphosate.

Similar products

Then, once autumn rolls around I’ll treat the lawn again but this time I’ll use Resolva concentrate.

Even though the weeds were still visible, they were crispy and showing no signs of life with no new offshoots etc.We have selected two brands of weed killer; Westlands Resolva and Evergreen Weedol formerly known as Scotts Verdone. Between them they offer the broadest range of active ingredients so that if one doesn't kill a certain weed the other may. Use one brand of chemicals for 'full lawn or blanket spraying' and the other for 'spot treatment'. If you only need to ‘spot treat’ then have two different ones on hand or when one runs out buy the other one to replace it. If you know your weeds