Tillers chop up weeds easily. But when used too frequently they can break down the texture of the soil and may harm earthworms and other soil dwellers. Use a tiller for major weeding removal jobs, rather than for routine weed control.
A flame weeder is a small propane torch used to get weeds where other tools do not work, such as along walls or between cracks in the patio. A flame weeder is not for burning weeds?merely holding the torch close to the weed dessicates and kills it.
Hand weeders come in all sorts of shapes and sizes, in styles old and new. The traditional forked dandelion digger remains an effective tool for popping dandelions and other weeds with long taproots out of the ground. The ball weeder has a large round center to give you even more leverage. The circle hoe skims beneath the surface of the soil, severing the roots.