15 Homemade Weed Killers That Will Work in Your Yard

https://www.goodhousekeeping.com/home/gardening/advice/g777/homemade-weed-killers/?slide=6

Landscape Fabric

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Weed control starts way before you spy intruders. "Consider laying down landscape fabric topped with a layer of mulch or straw". The physical barrier stops unwanted plants from sprouting up in the first place.

Mulch

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With or without fabric, experts agree mulch is a must. Mulch is an easy fix and helps keep your soil cool, wet, and eliminates light that weeds need to grow. Best its kept it around two inches deep and off your lawn, since it will also kill your grass.

Boiling Water

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Plain, old tap water can do the trick too. This works really well on young weeds, and results are immediate. If you add a tablespoon of salt to the boiling water, it's even more effective.

Salt

rock salt weed killer

Sprinkle rock salt on garden paths to fight weeds in the spring (table salt works too). Salt also makes a good weed barrier along lawn edgings and other places a lawn mower can't reach, but apply it carefully. It can erode concrete surfaces and can leave the ground barren for a long period of time.
A Trowel
The best way will always be good old-fashioned elbow grease. e advises trying to pull from beneath the soil, but waiting until after a rainstorm (when the ground is softer) can also help. Insert a narrow trowel or screwdriver in the soil to loosen any stubborn taproots.