I have 1500 square metres of grass/lawn that is becoming overrun with buttercup. Could you recommend an economical weed killer to deal with the problem?
Any lawn weedkiller will deal with buttercup. The most cost-effective way is to use a bottle of spray material, diluted according to the packet in water and sprayed on with a sprayer … when the weather warms up but the soil is moist, and May is usually best.
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