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Quick Guide to Buying Lawn Weed Killer
Concentrated Weed Killer for Dilution:
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Ideal if you have a large lawn
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If ‘ready to use’ is too bulky for delivery or storage
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Cost effective if your entire lawn needs weed control treatment
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Simple to mix
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Can be used in watering cans or knapsack sprayers
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Does not keep once diluted – only mix what you need
Ready to use Weed Killer:
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In small handy ‘squirty’ bottles for spot spraying individual lawn weeds
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Can be used straight after or during mowing if accurately sprayed
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Keep for a long time
Which 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.
Use Two Different Products for Improved Weed Control
Any one weed killer will NOT 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. The manufacturers use different ingredients therefore use one for ‘full lawn treatment’ and the other for ‘spot treatment’ as shown below:
Lawnsmith Option 1

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For whole lawn weed control use:
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Scotts Verdone® Extra concentrate
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Contains Fluroxypyr, Clopyralid and MCPA
- And for spot weed killer use:
- Bayer Advanced Lawn Weedkiller Ready to Use ‘squirty’ bottle
- Contains 2.4-D, Mecaprop-P and Dichlorprop-P
Lawnsmith Option 2
For whole lawn weed control use: -
Vitax Lawn Clear Weed Killer concentrate
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Contains 2.4-D, Clopyralid and MCPA
- And for spot weed killer use:
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Bayer Advanced Lawn Weedkiller Ready to Use ‘squirty’ bottle
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Contains 2.4-D, Mecaprop-P and Dichlorprop-P
Lawnsmith Option 3
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For whole lawn weed control use

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Vitax Lawn Clear Weedkiller concentrate
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Contains 2.4-D, Clopyralid and MCPA
- And for spot weed killer use:
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Scotts Verdone® Ready to Use in ‘squirty’ bottle
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Contains Fluroxypyr, Clopyralid and MCPA
New Lawns
When treating new lawns the manufacturers have the following recommendations:
- Scotts Verdone - 2 months after sowing though I'd be inclined to give it 3 months
- Bayer Advanced Weedkiller - 6 months after sowing
- Vitax Lawn Clear - 12 months after sowing
Hopefully it goes without saying that growth should be good and the grass healthy before applying weed killer.
Always read the label. Use pesticides safely



