Weed killer for lawns comes either ready mixed and ready to use or in a concentrate for dilution with water.
Concentrated Lawn Weed Killer for Dilution

- Ideal if you have a large lawn
- If ‘ready to use’ is too bulky for delivery or storage
- Cost effective if your entire lawn needs weed control treatment
- Simple to mix
- Can be used in watering cans or knapsack sprayers
- Does not keep once diluted – only mix what you need
NB Scotts have renamed Verdone as Weedol Lawn Weedkiller. Just as good but now a confusing name!
Ready to use Weed Killer

- In small handy ‘squirty’ bottles for spot spraying individual lawn weeds
- No mixing or messing
- Keep for a long time
Which Lawn Weed Killer is Best?
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
- Scotts Weedol (Verdone®) concentrate
- Contains Fluroxypyr, Clopyralid and MCPA
And for spot treatment use
- Resolva Lawn Weedkiller Ready to Use ‘squirty’ bottle
- Contains mecoprop-P and dicamba
Lawnsmith Option 2
For whole lawn& weed control use
- Resolva Lawn Weedkiller concentrate
- Contains mecoprop-P and dicamba
And for spot treatment use
- Scotts Weedol (Verdone®) Ready to Use in ‘squirty’ bottle
- Contains Fluroxypyr, Clopyralid and MCPA
New Lawns
When treating new lawns the manufacturers have the following recommendations:
- Scotts Weedol (Verdone) – 2 months after sowing though I’d be inclined to give it 3 months
- Resolva Lawn Weedkiller - 6 months after sowing or turfing
Hopefully it goes without saying that growth should be good and the grass healthy before applying weed killer to the grass and weeds.
Weed killers are herbicides; a type of pesticide used to kill plants. Insecticides and fungicides are also pesticides. When using pesticides always read the label and use them safely.